ISA 235 Chapter Notes - Chapter 4: Desktop Virtualization, Open-Source Software, Usb
29 Oct 2014
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Document Summary
What business professionals need to know about computer hardware, hardware. Consists of electronic components and related gadgetry that input, process, output, and store data according to instructions encoded in computer programs or software: basic components. Input hardware: typically things like the keyboard, mouse, document scanners, and bar-code scanners. Include the central processing unit (cpu: selects instructions, processes them, performs arithmetic and logical comparisons, and stores results of operations in memory, works in conjunction with main memory, sometimes called random access memory (ram) Output hardware: consists of video displays, printers, audio speakers, overhead projectors, and other special-purpose devices. Storage hardware: saves data and programs. Universal serial bus (usb: computer data. Binary digits: a bit is either a zero or a one, how a computer works. Cache: a small amount of very fast memory. Operating system (os: a program that controls the computers resources. The cache and main memory are lost when power is off.
