The document defines key computing terms including RAM, CPU, graphics processor, video/audio output, storage media, power supply, software kernel, human-computer interaction, local area networks, wireless protocols, caching, chipsets, 2D/3D graphics processing, subscription TV, enhanced TV, APIs, interpreted/compiled programming languages, object-oriented programming, and scripting languages for games. RAM temporarily stores programs and data for faster access than the hard drive, the CPU processes all computations, and the GPU handles 3D graphics functions.