Computer Science 1026A/B Chapter Notes - Chapter 1: Hard Disk Drive, Microsoft Word, Auxiliary Memory
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COMPSCI 1026A/B Full Course Notes
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Chapter 1 tells comp the sequence of steps needed to complete a specific task: program consists of a very large number of primitive (simple) instructions. Programming: act of designing, implementing, and testing computer programs. Hardware: physical elements in a comp system (e. g. monitor, mouse, external storage, keyboard) Central processing unit (cpu): performs program control & data processing. Storage devices: memory (ram) & secondary storage (hard disk, flash drives, cd/dvd drives) Input/output devices allow user to interact w/ comp (mouse, keyboard, printer, screen ) Comps execute basic instructions in rapid successions: basic instructions can be grouped together to perform complex tasks, comp transmits info (output) to user through display screen, user can enter info (input) for comp using a keyboard/mouse. Comps can be self-contained units or interconnected through networks. Cpu consists of the control unit (directs operation of processor: controls communication. Primary storage is composed of memory chips: electronic circuits that store data using electric power.