1. Inside the Computer Mr. Rowe Computer Tech 2011-2012

2. Something goes in What went in gets changed What comes out is different

3. Let’s take a look at some key computer terms and what goes on INSIDE the Grinder

4. System unit O Sometimes called the chassis. A box-like case made from metal or plastic that protecs the internal electronic components of the computer from damage.

5. CPU O Central Processing Unit. Also called the processor. The electronic device that interprets and carries out the basic instructions that operate the computer.

6. CPU O Central Processing Unit. Also called the processor. The electronic device that interprets and carries out the basic instructions that operate the computer.

7. Hertz O One Hertz = one cycle per second. O Megahertz = one millions cycles per second. The common measure of speed for processors and electronic activities inside the computer.

8. Hard Drive O A data storage medium that houses all of the electronic information and software programs on your computer.

9. Storage devices O Hardware used to record and retrieve items to and from a storage medium; often functions as a source of input because it transfers items from storage into memory.

10. Input devices O Any hardware component that allows a user to enter data, programs, commands, and user responses into a computer. Includes the keyboard, mouse, microphone, digital camera, scanner, etc.

11. Output devices O Any hardware component that can convey information to a user. Includes display devices, printers, monitors, speakers, headsets, data projectors, fax machines, etc.

12. Peripheral devices O Any external device that attaches to the system unit such as keyboard, mouse, printer, etc.

13. Taking a look inside the unit O http://computer.howstuffworks.com/inside- computer.htm http://computer.howstuffworks.com/inside- computer.htm Scroll down to see the video window; play the video which illustrates a “CPU”