This document categorizes and describes common computer hardware components. It discusses the central processing unit including the motherboard, power supply, case fan, and other components. It also describes various storage devices like hard drives, CD/DVD drives, flash drives, and memory. Input devices covered include mice, keyboards, scanners, graphics tablets, webcams, game pads, joysticks, trackballs, and microphones. Output devices discussed are monitors in LCD and CRT forms, printers in dot matrix, laser, and inkjet styles, speakers, terminals, and other audio/visual outputs.

1. CATEGORIES OF COMPUTER
HARDWARE
Prepared by: Jm Ramos

2. CENTRAL PROCESSING UNIT (CPU)
• Motherboard
• Power supply
• Case fan, power cable and SATA cable
• LAN card
• Graphics/video/sound card
• Hard Disk Drive
• Optical Drive or CD/ DVD- ROM drive
• Ports and wires

3. STORAGE DEVICES
• Use to store data
– Hard Drive

4. STORAGE DEVICES
• Use to store data
– Compact Disk Read Only Memory (CD-
ROM)

5. STORAGE DEVICES
• Use to store data
– Digital Versatile Disc (DVD)

6. STORAGE DEVICES
• Use to store data
– Flash Drive

7. STORAGE DEVICES
• Use to store data
– Read Only Memory
– Random Access Memory

8. INPUT DEVICES

9. INPUT DEVICES
• Common input devices are the mouse
and keyboard
• Allow people to interact with a computer

10. INPUT DEVICES
• Mouse
– Pointing device that you can use to
choose programs and to open files

11. INPUT DEVICES
• Keyboard
– Modeled from the keys of a typewriter

12. INPUT DEVICES
• Scanner
– Scan and copy the images, objects,
text, handwriting and converts them
as a digital image

13. INPUT DEVICES
• Graphics Input Devices
– Digital tablet allows you to create your
own images

14. INPUT DEVICES
• Web camera
– Allows one to place images into the
computer
• Game pad
– Called Joy pad or Control pad
– Handheld game controller for
computer games

15. INPUT DEVICES
• Joystick
– Pivots around so that one could move
in any direction
• Trackball
– Variation on the mouse (upside down)
• Microphone
– Connected to the computer to the
sound card via microphone port

16. OUTPUT DEVICES

17. OUPUT DEVICES
• Monitor
– Liquid Crystal Display (LCD)
– Cathode Ray Tube (CRT)

18. OUPUT DEVICES
• Printer
– Dot Matrix Printer
– Laser Jet Printer
– Ink Jet Printer
– Plotter

19. OUPUT DEVICES
• Speakers
• Terminals
– Input and output devices and
communication link to the main
computer
• Voice Output
• Music Output
• Computer Graphics
• Video Graphics

20. ACTIVITY
Answer Activity 1 And 2