Module 3 comp 312 - computer fundamentals and programming

Computer Fundamentals and Programming 1
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COMPUTER FUNDAMENTALS AND
PROGRAMMING
OVERVIEW:
The use of electronic spreadsheet has been maximized over the years at the onset of
modern software that support graphics as well as text and calculations. The first electronic
spreadsheet, developed by Dan Bricklin and Robert Frankstone in 1978 was called VisiCalc
for Visible Calculator. This program was designed to solve any electronic spreadsheet
problem that was accepted by individuals who mainly use numbers. Since then, many
companies developed and produced their own electronic spreadsheet programs, including
Lotus 1-2-3 from Lotus Development Corporation.
The Lotus spreadsheet was developed and introduced by Mitch Kapor in the market
in 1983. This software was described as a combination of spreadsheet, graphics and
database. Lotus, however, was stripped of its title as the market leader when Microsoft
introduced Excel which runs under Microsoft Windows. The advantage of Excel over other
spreadsheet software is that Windows provides a standard environment for all of the
programs running under it. This environment allows visual interface which is used when
communicating with other applications in the Windows environment. Windows and the
application software that it supports have a standard screen display that makes working
with this software more or less similar.
The clipboard feature of Windows also allows these capabilities: information transfer
without much effort and multiple loading of programs simultaneously and switching among
them effortlessly. These capabilities depend though on whether your computer could
support the necessary requirement for running multiple programs together.
In this chapter, you will learn electronic spreadsheet as a tool in all your
documenting needs. The focus of the discussion will be on what and how electronic
spreadsheet works as a productivity tool. We will also learn about MS Excel, the most
popular electronic spreadsheet program in the market today.
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At the end of the lesson, you will be able to:
 define the electronic spreadsheet
 discover Excel for Windows, the functions of Excel as an electronic
spreadsheet and Excel components
 learn the electronic spreadsheet environment (start Microsoft
Excel, its screen layout and its menus and sub-menus)
 create, save and open a workbook
 create new workbooks
 enter data, edit commands, format data types, create charts and
delete text in a workbook
 print spreadsheets
Topic Learning Outcomes
1. What is electronic spreadsheet?
2. It is a computer program that let you create and manipulate spreadsheets
electronically.
3. The names of the cells are called?
4. What is the series of cells that arranged horizontally which identified by
numbers?
5. It is used to join or concatenate, one or more text strings to produce a single
piece of text.
6. It is used to perform arithmetic functions but not text.
7. It is made up of rows and columns just like a ledger sheet.
8. It is used when you need to create a series like dates, days, months or numbers.
9. This series is used to complete a series of intervals, whether hours or numbers.
10. It is a procedure to determine the value of cells in a worksheet.
Pre-activity (Get Set)

Below is a list of knowledge that maybe you have encountered in your previous
computer subjects. Check the appropriate box corresponding to your agreement to
the statement using the scale given below.
5-advanced 4-Proficient 3-approaching proficiency 2-developing 1-beginning
Statements 5 4 3 2 1
I do not use a spreadsheet, nor can I identify any uses of
features it might have which would benefit the way I work.
I understand the use of a spreadsheet and can navigate within
one.
I can create a simple spreadsheet which adds a column of
numbers.
I use a spreadsheet for several applications.
These spreadsheets use the following:
a. labels
b. formulas
c. cell references
I can change the format of the spreadsheets by changing
column widths and text style.
I can use the spreadsheet to make a simple graph or chart.
I use spreadsheet as a student to help improve my own data
keeping and analysis skills.
Self-Assessment (Are you ready?)

Read and Learn
Lesson 1 Application Software: Electronic Spreadsheet
1.1 What is an Electronic Spreadsheet?
In their book, Computers and Information Systems, Tools for an Information Age,
H.L. Capron and John D. Peron aptly defined an electronic spreadsheet as a “computerized
version of a manual spreadsheet”. Recent modifications of electronic spreadsheets,
however, allow more than just calculations but also offer a wide variety of features. Modern
features include graphical representations of the data in the spreadsheets, database and
transfer of information to and from other Windows applications. Some spreadsheets
contain built-in formulas or may also maintain links to each other which enable data
entered in one spreadsheet to update an entry in another.
Spreadsheet applications (sometimes referred to simply as spreadsheets) are
computer programs that let you create and manipulate spreadsheets electronically. In a
spreadsheet application, each value sits in a cell. You can define what type of data is in each
cell and how various cells depend on one another. The relationships between cells are called
formulas, and the names of the cells are called labels. Most spreadsheet applications are
multidimensional, which means that you can link one spreadsheet to another. A three-
dimensional spreadsheet, for example, is like a stack of spreadsheets all connected by
formulas. A change made in one spreadsheet automatically affects other spreadsheets.
1.2 EXCEL FOR WINDOWS: A Brief Tutorial
Of the various kinds of electronic spreadsheet software in the industry today, Excel
is the most popular and widely used in business and the academe. This holds true for the
other software application tools supported by Windows. Most probably, the electronic
spreadsheet loaded in your computer laboratory is Microsoft Excel, which is the focus of the
discussion in this chapter.
1.2.1 Functions of Excel as an Electronic Spreadsheet
As lifted from the book of Martin S. Matthews entitled Excel for Windows
Made Easy, Excel has three components that perform three different tasks: 1) the
spreadsheet component which displays and analyzes text and numbers in rows and
columns, 2) the database component which manipulates lists of information, and 3)
the chart component which produces useful charts. A common data structure makes
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Excel integrated and enables it to transfer and manipulate data easily among the
three components. This feature makes electronic spreadsheets, particularly Excel, a
very popular tool in the business field and functions invariably according to the
needs of the users of the program. The following are some of the most common
business applications that Excel is known for.
1. Budget Management – you can use Excel in forecasting expenses and income and
analyzing expenditures by categories like manpower, loan interest, and utilities and
so on. You can manipulate the data in anticipation of changes in the business
situation and you can clearly see the results. For example, if you hire additional
manpower, labor costs would increase which, in turn, would affect the income. Excel
calculates data changes as you enter these in the spreadsheet and displays the
results on your screen.
2. Competitive Bidding – industries or companies engaged in business that necessitates
them to constantly apply for bidding use spreadsheets in preparing their bids to
compete for contracts. Excel, in particular, allows you to explore “what if” scenarios
by changing costs, delivery dates or other components that affect decisions in
determining what combination best produces the lowest bid.
3. Investments – Excel provides tools for the finance and investment industry to
analyze the economic scenarios that would affect the market. This program is
likewise used to analyze the costs of borrowing and lending vis a vis the anticipated
profits in lending money particularly during fluctuations in interest rates and peso-
dollar exchange rates.
1.3 Excel Components
There are three major classifications of Excel components: the spreadsheets,
databases and charts. The discussion in this lesson of the module will focus on the
spreadsheet components.
1.3.1 Files/Workbooks
Electronic spreadsheets or sheets stored in your computer’s hard disk are
referred to as files or workbooks. A workbook may contain one or more sheets or
charts; as you save your workbook into your hard disk, you must give it a name to
distinguish its contents from other files of the same category (workbooks). A name
that you give to your file is referred to as the filename.
1.3.2 Rows
A series of cells arranged horizontally which are identified by numbers.

1.3.3 Columns
A vertical series of cells, spreadsheet columns are usually identified by
letters.
1.3.4 Sheets
An electronic multicolumn spreadsheet, Excel has about 255 sheets, with
each sheet containing approximately 256 columns and 16,384 rows.
1.3.5 Addresses
Refers to the specific location as to rows and columns of data or information
you stored. An address is written with the column reference first followed by the
row. For example, Sheet A1 –which means that your data is located in sheet 1 in
intersecting column A row 1.
1.3.6 Cells
The intersection of a column and a row on a single sheet is referred to as a
single address. A cell is a box in which you can enter a single piece from an array of
data. Data usually come in the form of text, numeric values or formulas. The entire
spreadsheet is composed of rows and column of cells. Individual cells are usually
identified by a column letter and a row number. For example, A1 specifies the cell in
column A and row 1.
1.3.7 Numbers and Text
The characters that are entered in cells are manipulated. Numbers, including
formulas, may be formatted in various ways. Text can also be used to label rows and
columns, titles or notes on sheets. Numbers can be used to perform arithmetic
functions but not text. Text entered in cells is considered by Excel as numbers, thus if
included in a formula, Excel will invalidate the formula.
1.3.8 Reference, Reference Name and Reference
Operators
Identifies one or more cells for use in a formula; it can be a single cell address
like A1 or a group of cells identified by multiple cell addresses and a reference
operator such as A1:A5; or a name or names that refer to one or more cells like
Expenses. A reference name is a line of text that begins with a letter and can be as

long as 255 characters but cannot contain a space. Martin S. Matthews indicated the
following reference operators, their names and their meaning in his book Excel for
Windows Made Easy.
Colon (:)
Range – a rectangular group of adjacent cell; you can identify it by using a
colon separating the upper left corner cell address and the lower right corner cell
address, or you may highlight the cells in the screen using your mouse.
Comma (,)
Union – the combination of two references whether these references are
directly adjacent or disjoint and to be joined by a formula.
Space (___)
Intersection – the cells common to two references or a group of cells that are
both in two references.
The following illustration supplied in the book of Martin S. Matthews
appropriately exemplifies the types of ranges in an Excel workbook.
Union f B14:G14, H14:H17
A row of cells
(B2:E3)
A block of cells
(B4:E11) A column of cells
(H2:H12)
Union of (H14:H17, H27)
A single cell (H26)
Intersection of (D20:E28,B18:F26)
Figure 1.1 Types of Ranges in an Excel Workbook

1.3.9 Range
Refers to one or more adjacent cells. For instance, an entire row or column,
or multiple rows or columns could be a range. All the cells or a range must be
neighboring and rectangular in shape regardless of size, that is, you cannot have a
range consisting of three cells in one column and four cells in the next. Once you
have defined a range, you can perform operations on it. This is a powerful feature
because it allows you to manipulate a set of cells with one expression.
1.3.10 Labels
In spreadsheets programs, a label is any descriptive text places in a cell.
1.3.11 Formulas and Functions
In Spreadsheet applications, a formula is an expression that defines how one
cell relates to other cells. For example, you might define cell C5 (column C, row 5)
with the formula =A4*D7 which means to multiply the value in cell A4 by the value in
cell D7. A formula is a means of summing up columns or row of numbers, calculate
percentages and perform other mathematical operations. The three types of
formulas are: 1) text formulas – which contain text operator; 2) numeric formulas -
which contain arithmetic operators 3) logical formulas – which contain comparison
operators. Formulas usually start with an equal (=) sign. You may also enter a
formula beginning with a + or – sign and the program will automatically place an =
sign in front of the plus or minus.
Arithmetic Operators and Hierarchy of Operations
Formulas calculate values in cells in a specific order and the parentheses
placed in the formula and the operators of formulas determine how Excel will
evaluate the order of the formula. As described in the preceding topic, an equal sign
is placed at the beginning of the formula. The equal sign tells Excel that you are
entering a formula. Right after the equal sign are the elements to be calculated or
the operands which are separated by calculation operands. Operators that are first
in the order are performed earlier in the calculation but when two operators in a
formula have the same order or calculation, Excel evaluates them in sequence from
left to right. You cannot perform multiple calculations without the proper sequence
of operations based on the order of each operation used. The order or calculation in
a formula may change with the use of parentheses because Excel performs the
calculation within the innermost parentheses first.
For instance, you cannot use the formula =A1+B1*C1 to add two amounts
before multiplying them by a third because based on the order of calculation,
multiplications is performed before addition. However, when you put parentheses
around the addition operation, the formula becomes =(A+B)*C, thus the addition is

performed first. With the addition of the parentheses, values in A are added first to
the value in B then multiplied by the value in C.
The following is a list of the order of precedence of the different operators.
Operator Description
: (colon)
(single space)
, (comma)
Reference operators
- Negation (as in -1)
% Percent
^ Exponentiation
* and / Multiplication and division
+ and - Addition and subtraction
& Connects two strings of text
(concatenation)
= < > <= >= <> Comparison
Arithmetic Operators are used to perform basic mathematical operations
such as addition, subtraction or multiplication; combine numbers; and produce
numeric results.
Symbol/
Operator
Description/
Meaning
Example
+/plus sign Addition (1+1) or
=A1value+A2value
-/minus sign Subtraction/
Negation
(1-1) or
=A1value-A2value
*/asterisk Multiplication (1*1) or
=A1value*A2value
//forward slash Division (1/1) or
=A1value/A2value
%/percent sign Percent 10%
^/caret Exponentiation 1^1
Comparison operators are used to compare two values like when two values
are compared by using these operators, the result is a logical value either True or
False.
Symbol/
Operator
Description/
Meaning
Example
=/equal sign Equal to (A1=B1)
>/greater than sign Greater than (A1>B1)
</less than sign Less than (A1<B1)

>=/greater than
or equal to sign
Greater than
or equal to
(A1>=B1)
<=/less than
or equal to sign
Less than or equal to (A1<=B1)
<>/not equal to sign Not equal to (A1<>B1)
Text concatenation operator. The ampersand (&) is used to join or
concatenate, one or more text strings to produce a single piece of text.
Symbol/
Operator
Description/
Meaning
Example
&/ampersand Connects or concatenates,
two values to produce one
continuous text value
(“Salaries” & “benefits”)
Reference operators combine ranges of cells for calculations discussed under
Reference, Reference Name and Reference Operators.
Lesson 2 Electronic Spreadsheet Environment
Learning Excel is simple but to be skillful in the use of the program for calculations
and presentation, you must familiarize yourself with the basics of the program and must
always practice to discover and rediscover its uses.
2.1 Starting Microsoft Excel
In the previous module, you learned different ways to start MS Word. Since all
Microsoft software is supported by the same operating environment, the same procedures
apply in Excel. As easy reference, let us start the program in the simplest way.
To start MS Excel
1. Most computers have an Excel shortcut button on the screen – double click this
button.
2. Left click the start icon from the taskbar.
3. Point to Programs, left click and select Excel.
4. Double click the left button of the mouse to open the Excel window.
As the program loads, a new, blank workbook window appears. Each workbook can
hold multiple worksheets that are used to contain various related data or information in a

single workbook. For example, you may create a workbook for household expenses and
assign various expenses in worksheets to create a worksheet that would hold a total or
summary of all household expenses.
2.2 Screen Layout
Figure 2.1 describes the integration of Excel’s many components. Each component
functions individually to produce shared results.
Title bar Formula Bar – displays the content of a certain cell
Menu bar
Formatting
Toolbar Column
Heading -
Name Box – runs vertically
displays the reference in a
address worksheet
Workbook and is
Row Heading – runs Window identified
horizontally and by the
is identified by the letter
number heading heading
Sheet tabs –
allow you to scroll
though worksheets Sheet name – names the sheet; you may change the name of
to view its contents the sheet; the active sheet is the one that is highlighted
Figure 2.1 MS Excel Screen Layout
2.3 Navigating Through a Workbook
Excel provides easy scroll tools for you to easily move through your workbook. Using
your mouse, you may click on various sheets or sheet tabs to move through them. Using you
keyboard, you may browse over different sheets by pressing Ctrl + Page Up to go to
previous worksheets or Ctrl + Page Down to go to the next worksheets.
Navigating in a Worksheet
A worksheet is made up of rows and columns just like a ledger sheet. You may
browse over a workbook window or in a particular worksheet by using arrow keys to move
through different cells. If MS Word has a cursor or an insertion point, MS Excel has an active

cell that is characterized by a cell with a bold, black border. You may select any cell to be
active by clicking on the cell using your mouse or to move the active cell to the right, left, up
or down using the arrow keys in your keyboard. When Excel loads, the active cell is always
the first cell which is A1, but you may automatically move the active cell anywhere.
Cell reference of the active cell
as displayed in the Name box
refers to the intersection of
column A and row 1
2.4 Menus and Submenus
Excel, just like Word, has almost the same menus, lists and commands in the Menu
bar. Excel, however, has the Data menu instead of the Table menu in Word. You will come
to know more of the menus and commands that Excel contains as you browse over the
succeeding topics.
Lesson 3 Creating, Saving and Opening Workbooks
Workbooks may be created according to your needs and specifications. Like many
students who studied electronic spreadsheets for the first time, you might be overwhelmed
by the many features and capabilities of the software. To help you familiarize yourself with
the software, some of the common features are presented in the following topics.
3.1 Creating a New Workbook
There are two ways of creating a new workbook. You may use the mouse or the
keyboard but you have to decide whether to start a new blank workbook or to open a
workbook template. You may also go for workbook templates that are available in Excel.
Procedure
No.
Mouse Keyboard
1 Click the new blank workbook icon
on the standard toolbar. A new blank
workbook window appears.
Open the file menu by pressing Alt +
E.

2 Go to New and press Enter. A new
blank workbook window appears
with a dialog box containing choices
for the suggested templates.
To open a workbook template, go to File by either using the mouse or the keyboard,
and then go to New. A dialog box containing various choices of templates then appears for
lower versions of Excel. For XP version, the dialog box appears with choices for either
creating a blank document or opening a template.
Figure 3.1 The Dialog Box to Open a New Document or Template
3.2 Entering Data in Worksheets
Excel determines your cell as either number or text. If you enter numbers 0 through
9 of the following numeric symbols, Excel considers your entry a number. Your workbook
entries may either be a constant or a formula. A constant is further classified into three: a
numeric value or any numerals, a text value, or a date and time value which are any
character other than numerals. A formula is a mathematical process that begins with an
equal sign (=) and performs a calculation of your specified values in the worksheet.
To enter data in your worksheet
Procedure
No.
Mouse Keyboard
1 Select the cell where you want to
enter data by positioning your
mouse pointer and clicking the left
button of your mouse.
Ex. A1
Select the cell by moving the active
cell to where you want to enter the
data by using the arrow keys.
Ex. A1
2 See below * Type the data that you are to enter.
Ex. Joseph Neil Cataluña

3 * See below Press Enter and the active cell will
mode directly below or press the
Tab Key and the active cell will move
to the right, or Press any direction
and activate another cell, or Left
click any desired cell to activate.
* As you type an entry in a cell, three buttons will appear: cancel, enter and the edit
formula which can be activated using your mouse.
Cancel button – cancels the
entry, functions similar to the
Esc key as long as you have
not yet confirmed your entry
Enter button – confirms your
cell entry just pressing enter
on the keyboard
Edit Formula button – allows
you to edit your formula or
open the formula palette to
assist you in constructing a
formula
3.3 Editing Commands
After entering data into cells, you can edit your cell entries different ways that you
would need to. Certain editing and formatting commands, however, could not be performed
without first identifying which cells are to be edited. With this, you need to identify or select
the cell or cells to edit. To select a cell, click it to make it the active cell.
To select a range of cells
Procedure
No.
Mouse Keyboard
1 Position the mouse pointer over the
first cell of the range and click the
left button of the mouse.
Move the active cell to the first cell
of the range and press and hold the
Shift key.
2 Hold the left button of the mouse as
you drag until the last cell of the
range is highlighted.
Press any key of the arrow keys
(depending on the direction of the
range) while holding down the Shift
key as you move towards the last
cell of the range.

To select all cells on a worksheet, press Ctrl + A on your keyboard and all cells of the
active sheet will be highlighted. To select all cells using the mouse, click the select all button
located at the upper left corner of the workbook window where the column and row
headings intersect.
The Select All button
There are instances when you need to select nonadjacent cells or cell ranges for
computation like when you want to add totals of selected cells to forecast probable increase
in expenses of some cells. To do so, you should move to the first cell that you are to
highlight, then hold the Ctrl key as you click on the cells that you are to select. Release the
Ctrl key when you are done clicking the last cell.
When you want to select an entire row or column, click on the heading of that row
or column.

To select adjacent rows or columns, you may either click on the first cell to highlight
and drag until the last cell using your mouse or move the active cell to the first cell to
highlight and press and hold the Shift key while pressing an arrow key to the direction of the
cells to highlight until you reach the last cell. Release the shift and arrow to highlight until
you reach the last cell. Release the shift and arrow keys.
To cancel a selection of cells, just click on a cell on a worksheet.
3.3.1 Fill Series and Auto Fill
Aside from the basic edit commands like undo, redo, cut and paste, Excel has special
automated features that let you quickly enter data into cells in less time.
Auto Fill is used when you need to create a series like dates, days, months or
numbers. For example, if you want to create a series of days to create a week, type Monday
on your designated cell, and then position your mouse on the lower right corner of the cell
and left click, hold and drag the Auto Fill handle until all six cells are highlighted designating
each day of the week to each cell. Release the left button of the mouse when you are done.
Auto Fill handle, a small black plus sign. The
mouse pointer becomes an Auto Fill handle
when placed at the lower right corner of the
cell.
Fill Series is used to complete a series of intervals, whether hours or numbers. For
example, if you want to fill in a series of numbers follow the procedures below:

1. Select first the cell where you would start the series.
2. Type 1 or the number of which the series would start.
3. Press the arrow key which represents the direction of your fill series to activate the
next cell.
4. Type 2 or the number succeeding the first number of the series.
5. Select the first two cells wherein you typed the first numbers of the series.
6. Position your mouse pointer over the lower right corner of the second cell until the
Auto Fill handle shows.
7. Click, hold and drag the Auto Fill handle until the last cell to fill in.
Note:
You use the arrow keys to move
to the next cell or another cell,
depending on which direction
you take, whether sideways or
down. It is seldom used to fill
series upward.
The number which corresponds to the order of the cell in the series shows as you
drag the Auto Fill handle down or sideways until you reach the last cell to fill in.
To save time entering small cell entries in rows and columns, you may use the Ctrl +
Enter keys on your keyboard or the Ctrl key and left clicking your mouse.
To enter same entries in adjacent rows or columns
1. Click the first cell to select and activate.
2. Hold and drag to highlight the necessary cells until you reach the last cell to enter
same data into. The first cell remains to be the active cell in the range.
3. Type your entry in the active cell. The remaining cells in the range remain
highlighted.

4. Press Ctrl + Enter. The entry in the first cell of the range is copied in all cells of the
range.
To enter same entries in nonadjacent rows or columns
1. Click the first cell to select and activate.
2. Press the Ctrl key as you click the cells to fill in the same entries. The last cell you
click is the active cell.
3. Type your entry in the active cell.
4. Press Ctrl + Enter on your keyboard. The entry in the first cell of the range is copied
in all highlighted cells.

3.3.2 Auto Complete and Pick from List
Auto Complete feature allows you to quickly enter text by automatically finishing the
word/s you are typing if there is a match of the word in the column.
For example, when you type the first letter of your entry, excel automatically scans
the column where your cell entry belongs for a match. Auto Complete then suggests the
match by displaying it in the cell. You may press Enter to accept the suggested entry or
ignore it by continuously typing your entry. Press Enter after you have finished typing.
You may also use the Pick From List feature which like Auto Complete saves you time
typing entries. To use this feature, follow these steps:
1. Move the active cell to where you want to enter data.
2. Click the right button of the mouse. A list of shortcuts is displayed.
3. Go to Pick From List and click the left button. A list of all the entries in the column of
your cell is displayed.
4. Click your choice of entry from the list. The new entry is displayed in the cell.
Pick From List command allows you
choose ready text entries in the
same column.

3.3.3 Cut, Copy and Paste
You can transfer, duplicate and insert text entries from one location to another
within the sheet or from one sheet to another. Only be sure to highlight the cells that you
are to cut or copy before you insert or add it to another location. Upon transfer, the
content, format and formula (if there is) of a cell or range of cells will be copied as it is to the
destination cell/s.
3.4 Performing Calculations
After you have entered data or information into cells, you may now be able to
calculate the values entered into cells according to the formula that you use. You have
learned about entering constants in the previous topics. This time, you will learn about
entering calculation formulas.
A formula is a procedure to determine the value of cells in a worksheet. This
procedure is done by Excel but you have to decide on the type of calculation that Excel is to
perform. For easy use, there are predefined calculations called functions in Excel.
There are many ways by which calculations can be made. Complex or simple, a
formula as previously mentioned, always starts with an equal (=) sign. Unless there is one,
the cell will consider the entry as any constant, number, text or combination. Calculations
can be made on numbers, cell references or any combination of these two.
3.4.1 Calculations Formulas
To perform mathematical operations such as addition, multiplication, division and
subtraction, values in cells are used together with any mathematical operator aside, of
course, from the equal sign. Mathematical operators were presented in the previous topics.
A formula can contain a function which is a predefined set of instructions that helps
described the operation being performed; and at most time, functions go before arguments.
Arguments, on the other hand, define what data or values to calculate and the operation/s
to perform.
To enter a formula
1. Select the cell where you want to enter the formula.
2. Type the equal sign (=) to start writing the formula.
3. Type your first operand or go to the cell of which value will be your first operand.
4. Type the mathematical operator of the function that you wish Excel to perform.
5. Type your next operand or go to the cell of which value will be your next operand.

6. Repeat procedures 3-5 for multiple operands and press Enter.
The contents of the cell are displayed in this area called the Formula bar. It also displays
parts of the formula as you enter each.
The operands – to get the total sales for internet surfing, the total surfing hours for
the day should be multiplied by the price per hour. The formula would be =B10 (whose
value is 16) x C10 (whose value is 20). The result would be 320.00 as displayed in E10.
The destination cell of the formula - the result of the operation replaced by the
formula.
3.4.2 Functions
There are many built-in functions ready for your easy use, the most common of
which is the SUM function. This function adds all the numbers in a range and its argument
specifies what cells are to be added.
To use the SUM function
1. Select the cell where you want to place the SUM of the numbers. It is usually at the
end of the range to be summed up.
2. Click the AutoSum button in the standard toolbar. The range to be added is
highlighted.

3. Press Enter.
The range to be added is highlighted. However, there are times when the range
includes unnecessary cells. In this case, you have to select the cells to be totaled.
The destination cell of the function where the formula is replaced by the result of
the operation.
Other functions can also be added to your worksheet. These tools make Excel
powerful calculating software.
To access other functions
1. On the standard toolbar, click the arrow pointing down beside the AutoSum to
reveal the other functions.
2. Or you may also go to the Insert menu, select the function sub-menu to reveal the
Function dialog box. The Office Assistant also appears to guide you through the use
of the different functions.
3. Choose a function from the selection and click OK. The Function Arguments dialog
box appears.

4. Click the to select the range to add up.
Figure 3.2 The Insert Function Dialog Box
Insert function dialog

3.4.3 Copying a Formula
If you have the same formula for some of the calculations you are to perform, you
may just copy the formula to the destination cells.
Copy formulas in adjacent cells
1. Go to the first cell where you have entered the formula.
2. Position the mouse pointer over the lower right corner of the cell to show Auto Fill
handle.
3. Click and hold the left button of your mouse as you drag the Auto Fill handle to the
last cell.
4. Release the mouse button.
Copying a Formula in Nonadjacent Cells
1. Go to the first cell where you have entered the formula.
2. Click the Copy button in the standard toolbar or click the right button of your mouse
to display a list of shortcuts and click copy.

3. Go to your destination cell. A moving line will surround the previous cell of which
formula you are to copy.
4. If there is more than one cell, highlight the cells where you are to copy the formula
by clicking the left button of the mouse, hold and drag the mouse pointer towards
the last cell to highlight.
5. Click the Paste button on the standard toolbar or click the right button of the mouse
to display a list of shortcuts.
6. Click Paste and release the button. Press Esc on your keyboard to deactivate the
moving line surrounding the original cell if you do not have other cells to copy the
formula into.
3.5 Formatting Data Types
You format the data or information in your sheet to make your work more readable.
In formatting you may change the text appearance, cell appearance, and format numbers
according to percent or comma style, increase or decrease decimal places and many others.
Like MS Word, you may also change the page setup of the current sheet by just following
the same steps.
3.5.1 Inserting Rows and Columns
You may insert a row or column in your worksheet. Do this by positioning your active
cell where you want to insert a row or a column. Then go to the Insert menu and choose
either row or column. The default number of sheets in a new workbook is only three. To add
a worksheet, go to the Insert menu and choose Worksheet; a new blank worksheet named
Sheet 4 will appear.
3.5.2 Formatting Cells
Show the Format Cells dialog box to look at the different options that you may
choose to format the cells in your worksheet. Remember to first select the cells by
highlighting a range to format before showing the dialog box.
To open the format cell box
1. You may press Ctrl + 1 on your keyboard or go to the Format menu.
2. Go to cells and click the left button of your mouse.

The Format Cell dialog box. Click on the various options like formatting numbers,
alignment of cell entries, font sizes or color, borders and shading. However, these menus
have shortcuts that you may activate following the steps in activating a toolbar in the
previous chapter.
Try the different options in the Format Cells menu and choose the format options
that appeal to you. Be sure to practice on new sheets and enter imaginary values and not on
saved workbooks for you might mistakenly make changes on important files.

3.5.3 Resizing Rows and Columns
Rows and columns are resized to fit the contents of the cell. The shortest way to
resize a row or column is to drag either side of the line borders of a row heading or column
heading.
To resize a column or row
1. Select the row or column to resize.
2. Position your mouse pointer over the left or right line border of the row or column
heading.
3. Click the left button of the mouse and hold. The row or column size appears.
4. Drag the mouse to either increase or decrease the column or row. The displayed size
changes as you drag the mouse.
5. Release the button when you are finished.
Another way to resize a column or row
1. Position the mouse in the border of a row or column. Instead of dragging, click the
right button mouse or mouse to display a list of shortcuts.

2. Click the column width or row height command to activate the Column Width or
Row Height dialog box.
3. Change the values of the size according to your choice.
4. Click OK or press Enter.

Or you may:
1. Position your active cell to the column or row that you are to resize.
2. Then go to the Format menu and choose either Column or Row.
3. Click your choice and a list of options will appear.
4. Click your choice to make the necessary changes.
3.6 Creating Charts
The most interesting feature of Excel is its capability to present the values in cells in
graphic forms by inserting a chart that would best represent information in the sheet.
Charts like a pie chart shown at the right may be used to illustrate or represent the
relationship of the different values with each other.

To access the tables and charts feature
1. Click the Charts button in the Standard toolbar or go the Insert menu and click the
chart sub-menu. The Chart dialog box and the Office Assistant appear. The Office
Assistant is very handy for first time users who are not yet familiar with the creating
charts feature.
2. Read the instructions as you go through four steps in the process of inserting charts.
You may choose different types and sub-types of charts.
3. Press Enter or click Finish when you are done. The chart will appear at the center of
the spreadsheet.
3.7 Deleting
Deleting may be in many forms and in many ways. You may use the Delete button on
your keyboard or the Backspace key to delete text and/or numbers. Rows and columns may
also be deleted as long as the information contained in the cells is no longer necessary.
To delete a row or a column
1. Point the mouse pointer over the row or column heading that you are to delete.
2. Press Delete on your keyboard.
3.8 Saving a Workbook
Saving a workbook may be done any time after you have started working on it. To be
very safe though, you should save and name your work after a few minutes from starting
and regularly saving changes every few minutes. Press Ctrl + S if you have already saved and
named your workbook. If you will save your workbook for the first time, follow the steps
below.
To save a workbook
1. Open the File menu and go to Save or just press Ctrl + S. The Save As dialog box
appears.
2. Decide on the destination folder of your file. Click on Save in field and go to your
desired folder.
3. Click in the File Name field and type a name to designate your file.
4. Click OK or press Enter in your keyboard.

3.9 Closing and Opening a Workbook
When you have finished your workbook, you may opt to close it and update it some
other time. To close your workbook, follow these steps:
1. Open the File menu and go to the Close command or click the x button located in the
upper right corner of your workbook window. If you have not previously saved your
document, a dialog box appears asking you to save your document.
2. Click the appropriate box. Excel will then close your workbook window
3.10 Printing Spreadsheets
You can print spreadsheets easily in Excel. Just follow these simple steps.
3.10.1 Page Setup
Before printing anywhere, prepare your page setup.
Click File then select Page Setup. The Page Setup dialog box will appear.
Figure 3.3 The Page Setup Dialog Box
The dialog box will allow you to make changes on the orientation (portrait or
landscape), paper size, print quality, margins and headers and footers.

3.10.2 Setting the Print Area
Because spreadsheets may be too long or too wide for the size of a paper, it is better
to set the area that should be printed. To do this, you must select the cells you want to
print, click file, select print area, and then click set print area.
Print Area
The area you have selected will be the area to be printed.
3.10.3 Print Preview
To preview the way the document will be printed, use the print preview too.
To do this, click file, then select Print Preview. A preview page will appear.
The monitor will show your document in exactly the same form that it will be printed. You
may zoom in on the page, set margins or see a preview of the page breaker. You may click
the Close tab the moment you are satisfied with the page layout.

3.10.4 Printing Your Document
After making the preparations, you may now actually print the document. Prepare
your printer and load it with paper. Click File, then Print. The Print dialog box will appear.
Be sure that you have a printer attached to your computer. You may select the print
range and the number of copies. Then click OK. There should be no problem in printing your
document.
Print Dialog Box

You connect . . .
. . . with the class
 Submission of activity to Moodle/Google classroom
 Active participation in an open discussion using Google Meet/Facebook
Messenger
. . . with the world
 Albano, Gisela May A., Atole, Ronnel R., Ariola, Rose Joy Y. (2003).
Introduction to Information Technology. Philippines: Trinitas Publishing, Inc.
 www.google.com
Identify and describe the following concepts:
1. cells 16. Electronic spreadsheet
2. range 17. formulas
3. ViSiCalc 18. comparison operations
4. Budget management 19. rows
5. address 20. auto complete
6. functions 21. labels
7. reference operator 22. intersection
8. union 23. auto fill
9. columns 24. worksheet
10. sheet 25. constant
11. workbook 26. reference name
12. text formulas 27. excel
13. active cell 28. arguments
14. Lotus 1-2-3 29. SUM function
15. Print range 30. Logical formulas
Try this . . .

Main Task
Do the following:
1. Start Excel and create a new workbook. Then input the particular amount you
incurred for the following expenses for the last month.
a. Food
b. Travel expenses
c. Clothing expenses
d. Miscellaneous
2. Start Excel and create a new workbook. Input the following information.
Find the formula to be used to show the population density of each country (person
per sq. km.) Use this formula for Column E.
Save your workbook and name it POPULATION.
Close your workbook.
3. Open the EXPENSES File.
Create a chart of the expenses to visually see the breakdown. A pie chart would be
appropriate for the exercise.
Save your file. Exit Excel.
Note: Upload/attach your main task to Google Classroom.
Do this . . .

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Module 3 comp 312 - computer fundamentals and programming

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Module 3 comp 312 - computer fundamentals and programming