Questions

1. What is a CPU? What does it do?  — central processing unit: (computer science) the part of a computer (a microprocessor chip) that does most of the data processing
2. What is RAM? What does it do? — random-access memory: the most common computer memory which can be used by programs to perform necessary tasks while the computer is on; an integrated circuit memory chip allows information to be stored or accessed in any order and all storage locations are equally accessible
3. What is a heat sink? What does it do? — a metal conductor specially designed to conduct (and radiate) heat
4. What is an optical drive? What does it do? — In computing, an optical disc drive (ODD) is a disk drive that uses laser light or electromagnetic waves near the light spectrum
5. What is a hard drive? What does it do? — also known as a Hard Disc Drive or HDD. Normally located inside your PC and often labelled C:, a hard drive is capable of storing a large number of files.
6. What is a computer power supply? What does it do? — Power supply is a reference to a source of electrical power. A device or system that supplies electrical or other types of energy to an output
7. What is a motherboard? What does it do? — A motherboard is the central printed circuit board (PCB) in many modern computers and holds many of the crucial components of the system
8. What is a computer case? What does it do? — A computer case (also known as a computer chassis, cabinet, box, tower, enclosure, housing or simply case) is the enclosure that contains the main components of a computer.
9. What is a computer monitor? What does it do? — a device that displays signals on a computer screen
10. When your turn a computer monitor off, does it turn the computer off? — No.
11. What is a keyboard? Is it an input or output device? — input
12. What is an optical mouse? What does it do? — An optical mouse uses a light-emitting diode and photodiodes to detect movement relative to the underlying surface, rather than moving some of its parts – as in a mechanical mouse.
13. What is a DVD? How much data does it hold? — a digital recording (as of a movie) on an optical disk that can be played on a computer or a television set, can hold up to 15.90 GB
14. What is a CD? How much data does it hold? — A Compact Disc (also known as a CD) is an optical disc used to store digital data. Can hold up to 80 minutes of uncompressed audio (700 MB of data).
15. What is a surge protector? What does it do? Why do you need one to plug in a computer? — A surge protector (or surge suppressor) is an appliance designed to protect electrical devices from voltage spikes. If you plug into a computer, will protect it if the power source unexpectedly gives out.
16. What is a computer network? — is two or more computers connected so that they can communicate with each other and share information, software, peripheral devices, etc.
17. What is WiFi? — wireless local area network, WLAN, wireless fidelity, WiFi (a local area network that uses high frequency radio signals to transmit and receive data over distances of a few hundred feet; uses ethernet protocol)
18. What is 3G? — 3rd Generation (cellular phone commmunication standard)
19. What is an LCD monitor? How does it work? — A thin film transistor liquid crystal display (TFT-LCD) is a variant of liquid crystal display (LCD) which uses thin-film transistor
20. What is streaming audio? — Streaming media are multimedia that are constantly received by, and normally presented to, an end-user while being delivered by a streaming provider (the term “presented” is used in this article in a general sense that includes audio or video playback).
21. What is streaming video? — Streaming video is a sequence of “moving images” that are sent in compressed form over the Internet and displayed by the viewer as they arrive.
22. Are you allowed to listen to streaming audio in this computer lab? — No
23. Are you allowed to listen to streaming video in this computer lab? — No
24. Are you supposed to play games on school computers? — No
25. Are you supposed to visit MySpace or Facebook at school? — No
26. What is a proxy? — A firewall mechanism that replaces the IP address of a host on the internal (protected) network with its own IP address for all traffic passing
27. Are you supposed to use proxies in school? — No
28. What “game” site are you allowed to use in this lab? — sporcle.com
29. What’s the easiest thing to try if your computer isn’t working right? — Task Manager? (Ctrl + Alt +Del)

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