DIGITAL COMPUTERS
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Digital computers operate on data expressed in binary digits (0s and 1s). They are highly accurate and fast. Microcomputers are single-user computers like desktops, laptops, and PDAs. Mini computers have more storage and memory than microcomputers and support multiple users. Mainframe computers are the largest and most powerful, able to support hundreds of users and handle massive amounts of data processing. Supercomputers use parallel processing with multiple coordinated processors and are used for highly complex tasks like weather modeling.
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- 3. Digital Computers are the Computers which deal with discrete quantities . It operates on data, including magnitudes, letters, and symbols, that are expressed in binary form—i.e., using only the two digits 0 and 1
- 4. The speed of Digital computers is very high. These computers are more accurate compared to others. These convert the data into binary digits. These computers are widely used in business & scientific applications.
- 7. •These computers are designed for a specific task. •The instruction to carry out the task is permanently stored in the computers. •These computers are efficient but not versatile.
- 8. These computers can work on different tasks {different types of programs}. These programs are not permanently stored. These computers are very versatile.
- 10. •Computer exists in wide range of sizes and powers. •These computers are typically programmed for a specific task. •Small computer are embedded within the circuitry of appliances. •Example: - Televisions, Washing machine, Wrist watches these appliances are typically programmed before itself for a specific task.
- 11. A Micro computer is a computer whose CPU is a microprocessor. These computers are single user system. These are mainly used in – homes, offices, schools, shops. Microprocessor is a processor whose all components are on a single integrated circuit chip.
- 12. THREE MAJOR CATEGORIES OF MICRO COMPUTERS.
- 13. •Programmable Computers vary enormously in their computational power, speed & physical size. •The smallest of these computers is PDAs. •PDAs are also called as Personal Digital Assistants. •EXAMPLE Cellular phone, notepad, Scheduling systems & address books
- 14. These are typically used in business, home, school etc. They have very large amount of internal memory to store hundreds of programs & documents. But for laptop these are more compact, flat light weight. The desktops are large in size compared to laptops.
- 15. 1.Workstations are similar to Desktop Computers. 2.These computers have greater memory and extensive mathematical abilities. 3.They are found in Scientific and Industrial field since they require high level of computational abilities.
- 18. 1. These computers are also called as mid-range server. 2. Mini computers are mainly multi user system. 3. Mini computers have greater storage capacity & larger memories compared to micro computers. 4. EXAMPLE :- PDP-11,VAX-7500MAGNUM
- 19. oThese computers are designed to handle huge volumes of data & information. oThese are multiuser computers they can support more than 100 users at a time. oThese are very large and expensive computers. oThese computers have high speed and large memory compared to others. oEXAMPLES :- ICL 39, CDC 6600, IBM 3090/600, IBM 4381, VAX 8842.
- 21. 1. Super Computers are the most powerful computers among digital computers. 2. These computer consists of a several processor running simultaneously which makes the computer to run faster. 3. These computer can handle huge amount of calculation & can perform billions of instructions per second. 4. These are very expensive which can approximately range from 15- 20 million dollars. 5. These computers are extensively used in Space Research stations, Weather Forecasting, Aerodynamic modeling, Metrology, Seismology etc. EXAMPLES :- CDC-205, ETA GF-10,PARAM, PACE, NEC SX-2, CRAY. X-MP 14
- 23. 1. What is the full form of following? PDAs :-C-DAC :- 2. Minicomputers are also called as_______________? 3. The power of Supercomputer is measured in terms of? 4. How can you correlate Digital Computers, Analog Computers, Special Purpose Computers and General Purpose Computer? Personal Digital Assistants Centre for development of Advanced Computing Mid-range servers