COB 204 Chapter Notes - Chapter 2: Operating System, Arithmetic Logic Unit, Computer Data Storage
3 Apr 2016
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Document Summary
Hardware: the physical equipment used for the input, processing, output, & storage aciviies of a computer system. Super computer: fastest computer available at a given ime. Mainframes: extensive compuing applicaions that are accessed by thousands of users at one ime. Microcomputers: smallest & least expensive category of general-purpose computers (pcs) Thin-client systems: desktop computers that don"t ofer the full funcionality of a pc less complex. Central processing unit: performs the actual computaion or number crunching inside any computer. Microprocessor: made up of millions of microscopic transistors embedded in a circuit on a silicon wafer or chip. Arithmeic logic unit (alu): performs the mathemaical calculaions & makes logical comparisons. Moore"s law: moore predicted that microprocessor complexity would double approximately every 18 months. Primary storage (main memory): stores three types of informaion for very brief periods of ime: data to be processed by the cpu. 2: operaing system programs that manage various aspects of the computer"s operaions.
