Computer Hardware & Processing Outside the Box CSC 101 1.0 September 9, 2010 Computers Are Data-Processing Devices A computer’s four major functions: Gathers data (users input data) Processes data into information Outputs data or information Stores data and information Plus
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Computer Hardware & ProcessingOutside the Box
September 9, 2010
0 or 1
Each letter, number, and character is a string of eight 0s and 1s
Intangible instructions that tell the hardware what to do.
Digital cameras, camcorders, and cell phones
Convert what the computer understands into a format that humans understand
Output can be in two formats
Hardcopy – tangible
Softcopy – in tangible
Video, sound, images on monitors
More expensive device
Faster printing speed
Color lasers are becoming less expensive
Composed of coated platters stacked on a spindle
Data saved to the disk: Pattern of magnetized spots– Spots = 1– Spaces = 0
Spots are translated into data
All Storage Media Will Fail
Back up your data!