1. Lesson 3
Computer Devices

2. System Unit/Case/Main Unit
The main part of a personal computer.
Contains electronic brain of computer
System Unit: Video

3. Microprocessor The CPU on a single integrated circuit.
CPU stands for Central Processing Unit
The CPU or simply processor, is the component in a digital computer that interprets instructions and processes data contained in computer programs

4. Input Device Keyboard Mouse Microphone scanner
A device that is used to enter data
Keyboard
Mouse
Microphone
scanner

5. Output Device Printers Monitors speakers
A device where the computer prints or displays information for the user.
Printers
Monitors
speakers

6. Storage Device
A device used to save data CD
USB
DVD

7. Magnetic
Storage using tape:
Recording tape
VHS
Cassette

8. Optical
Storage using Lasers: CD
DVD

9. Peripheral Device Any device outside the CPU Monitor Keyboard Mouse
Printer

10. Boot Process/Booting Up
Starts operating systems when the user turns on a computer system

11. Hard Drive
A disk drive containing a hard disk
Usually the C drive

12. Pixels
The smallest element of an image that can be individually processed in a video display system