1. Know Your PC

2. What is a Computer?
An electronic machine, operating under the control of instructions

3. Data & Information Data: Collection of Raw Unprocessed Facts
Unorganized

4. Data & Information Cont.
Data that is ORGANIZED and MEANINGFUL

5. User
Someone that communicates with a computer or uses the information it generates

6. Hardware
The Electric, Electronic, and Mechanical equipment that makes up your computer

7. Examples of Hardware Keyboard Mouse Monitor Printer Modem/ethernet
Speakers
Scanner

8. Disk Drives
A unit, connected to or situated inside the computer, that reads and writes onto disks

9. CPU CPU = Central Processing Unit
The internal operating unit of the computer
The “brain”

10. Software
The series of instructions that tells the hardware how to perform

11. The Components of a Computer
INPUT DEVICES

12. What is Input?
Input: is the data entered into a computer

13. Input Devices

14. Keyboard
*arrangement of letter, number, & symbols used to input characters and commands into the computer

15. Mouse A small handheld device that contains at least one button
Controls the movement on the screen

16. Microphone
Allows the user to speak to the computer in order to enter data and control the actions of the computer

17. Other Input Devices
Scanner
Touch Screen

18. Summary of Input Devices
What is an Input Device?
Name Two Input Devices
What is Data?

19. Output Devices
Any hardware Component that can convey information to the user

20. Monitor
TV-like device used to display text and graphic images on a screen

21. Monitors
Various shapes and sizes
LCD – liquid crystal display

22. Printers
A unit attached to a computer that produces text and graphics on a physical medium such as paper
* This paper is also known as a “hard copy”

23. Types of Printers
Dot Matrix – characters are formed by a series of dots
Ink-jet – ink is sprayed directly on the paper to form characters
Laser- a laser beam creates a pattern of electrical charges which attract black toner and transfer the image to paper

24. Storage Devices

25. Storage Devices
Holds data, instructions, and information for future use

26. Types of Storage Devices
Disk
CD-Rom
CD-rw
USB Stick (Jump Drive)

27. Processing The combination of Input, Output, and Storage.
All components are required to make processing occur.

28. INPUT + OUTPUT + STORAGE =
Processing Cycle
INPUT + OUTPUT + STORAGE =
PROCESSING

29. Summary Answer these Questions on Your OS Worksheet
1. Name an output device
2. Name a storage device
3. What is Processing?
4. What is the Processing Cycle?