1. 2.00 Understand Computer Fundamentals
Unit Objective:
2.01 Hardware & IPOS

2. What Is A Computer? An electronic device that:
Receives data
Processes data
Stores data, and
Produces a result (output).
Uses hardware and software
Variety of types and sizes

3. Types of Personal Computers
Desktop computer: designed to be used on a desktop
Laptop computer: designed to be small enough and light enough to be used on your lap

4. Types of Personal Computers
Tablet computer: similar to a laptop, but equipped with a touchscreen and/or handwriting recognition
Netbook: similar to a laptop, but smaller, lighter, and more battery life

5. Hardware The tangible, physical equipment that can be seen and touched
Examples:
Computer Case
Monitor
Keyboard and Mouse
Disk Drive
Speakers

6. PARTS OF A COMPUTER SYSTEM Computer Case (Processor inside)
Monitor
Speaker
Keyboard
Computer Case (Processor inside)
Mouse
CD-ROM/DVD Drive
Printer
Floppy Disk Drive

7. What you don’t see… CPU (Central Processing Unit)
The “brains” of the computer housed on a tiny silicon chip inside the computer case.
How Stuff Works Video

8. WHAT DOES THE COMPUTER DO? IPOS
Input
Entering data into the
computer (receiving)
Processing
Changing data into
usable form (processing)
Output
Sending data out of the
computer (leaving)
Storage
Saving data for later use (storing)

9. Input Devices Keyboard Mouse/Trackball Joystick Touchpad Touch Screen
Bar Code Reader
Scanner
Microphone
Graphics Tablet
Digital Cameras
Digital Pen

10. Processing Device
Only ONE!
Central Processing Unit (CPU)

11. Output Devices
Monitor: a screen that displays information
Produces a softcopy
Printer: gives you information from the computer in printed form
Produces a hardcopy
Speakers: allow you to hear voice, music, and other sounds

12. Internal Storage Devices
Hard Disk Drive: Magnetic platter that holds a large amount of information
Allows the fastest access to information
80+ GBs
RAM (Random Access Memory) – temporary
ROM (Read Only Memory) – long-term memory

13. External Storage Devices
Floppy Disks
Most are 3 ½ inches and hold 1.44 MB of data.
CD-ROMs (Compact Disc Read Only Memory)
CD-RW (Compact Disc Read and Write)
700 MGs
DVDs (Digital Video Discs
17 GBs
USB/Jump Drives
8+ GBs

14. Which Storage Device Holds The Most Information?
Name These Devices: