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Hardware Basics 601
Vocab. from Teaching Tech. ch. 2
| Question | Answer |
|---|---|
| RAM | Random Access Memory |
| CPU | central processing unit |
| ALU | arithmetic logic unit |
| ROM | Read Only Memory |
| binary coding system | made of ones and zeros, units are called bits |
| megahertz | one million cycles per second (processing speed) |
| gigahertz | one billion cycles per second (processing speed) |
| OCR | Optical Character Recognition software |
| CRT | cathode ray tube (type of tv or computer monitor) |
| LCD | liquid crystal display (type of tv or computer monitor |
| dpi | dots per inch, a measure of resolution for printers |
| data projection unit | fancy name for projector |
| document camera | an Elmo! |
| AT (assistive technology) | devices or software for special needs students |
| PAC Mate | a computer system for designed for the blind or visually impaired |