COMP 1010- Midterm Exam Guide - Comprehensive Notes for the exam ( 107 pages long!)

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Computer: machine used to process data o. Peripherals external devices (keyboard, mice, monitor, printers) Input devices: keyboards, mice, translate actions into numeric data that computer can process. Output devices: video, sound systems, convert numeric output into understandable format. Hardware: consists of input, output and all devices used for processing and. Commonly called processor : modern computers have additional processor (through input/output devices) Arithmetic and logic unit understand what kinds of calculations it should perform. Control unit understand what it should do next. Cpu- executes programs that make computer perform useful task. Clock frequency: how fast it can run programs (hertz: 1 gigahertz = 1 billion cycles per second, 1:1 ratio of cycles and calculations. Multiple cores: increasing speed costs too much in power usage or heat production alternative, put more than one processor in same physical package, do more w/o increasing clock speed. Amd and intel most popular processors: powerpc used in older macs, don"t understand same instructions as.

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