1. Eagle Challenge
Google Classroom
5 Questions

2. Chapter 3
Computer Components
The Computer Continuum

3. ●Many people believe that knowing how to use a computer is one of the basic skills needed to succeed in the workplace. ●In order to use the computer it is necessary to understand how the computer works.
Basic Skills…

4. Basic Functions of a Computer
Chapter 3
Basic Functions of a Computer
Storage
(Memory)
Input
Output
Processing
The Computer Continuum

5. Input Devices Allow you to enter data into the computer
Chapter 3
Input Devices
Allow you to enter data into the computer
Keyboard (most common)
Mouse
Voice recognition devices
Scanner
Digital camera
Touch Screen
The Computer Continuum

6. Output Devices Ability to read/see/use what the computer is doing
Chapter 3
Output Devices
Ability to read/see/use what the computer is doing
Monitor
CRT
LCD
Printer
Dot Matrix
Ink Jet
Laser Jet
Speakers
Headphones
The Computer Continuum

7. Chapter 3
Connecting
Peripheral Device: A piece of hardware outside the main computer
Keyboard
Printer
Scanner
Port: The pathway for data to go into and out of the computer from the peripheral devices
Device Driver: Software that will allow the computer to communicate with a peripheral device
The Computer Continuum

8. Processing The Central Processing Unit ( CPU):
Chapter 3
Processing
The Central Processing Unit ( CPU):
Often referred to as the “brain” of the computer.
Responsible for controlling all activities of the computer system.
Motherboard: The place where most of the electronics including the CPU are mounted.
Primary storage or memory: Is where the data and program that are currently in operation or being accessed are stored during use.
Two types:
RAM (non-permanent)
ROM (permanent)
The Computer Continuum

9. Storage Common storage devices are: Past storage devices: Hard Drive
Chapter 3
Storage
Common storage devices are:
Hard Drive
CD / DVD
CDR – Compact disc recordable
CDRW – Compact disc rewriteable
USB Drives (aka: Jump Drive, Flash Drive, Thumb Drive)
Memory Cards (digital cameras)
Past storage devices:
Punched paper tape/ cards
Floppy disk
Zip disk
The Computer Continuum

10. Chapter 3
Storage Cont’d.
Capacity - The amount of information that can be stored on the device
Unit Description Approximate Size
1 bit 1 binary digit
1 byte 8 bits 1 character
1 kilobyte 1,024 bytes 1/2 page, double spaced
1 megabyte 1,048,576 bytes 500,000 pages
(1 million bytes)
1 gigabyte 1,073,741,824 bytes 5 million pages
(1 billion bytes)
1 terabyte 1 trillion bytes 5 billion pages
The Computer Continuum

12. Software
System Software – your computer is controlled by the system software
Windows XP
Vista
Windows 7
OS X
Application Software – programs that are designed to preform a basic function
Word processing
Database
Spreadsheet
Desktop publishing
Presentations