1. Introduction to Computers
Mr. Minger
2016

2. What is a Computer? Computer:
an electronic device that is used for the processing and storage of information
Examples of Computers:
Calculator
XBox
Laptop

3. What do we use a Computer for?
Keyboarding/Typing
Looking up information
Storage
Business
Homework
Games

4. Computer Processing Cycle
Computers can perform four general operations, which comprise the information processing cycle.
Input
Process
Output
Storage

5. How do we Learn?
The computer processing cycle can be compared to how we learn as people.
Input: we use our senses to gather information

6. How do we Learn? Process: We use our brain to process the information
Output: We give an output such as an answer on a test
Storage: We can store things in our brain for future use

7. Input Phase Computers need to collect data.
Data: a collection of numbers, words, images, video and sound, given to the computer during the input phase.
This data is used to create information that is useful and organized.

8. Input Devices
Mouse
Keyboard
Scanner
Mouse
Keyboard
Scanner

9. Processing What does a computer use to process information?
CPU or Microprocessor
This is like our brain.
Who makes CPU’s?
Intel
AMD

10. Output Devices
Monitor
Speakers
Printer

11. Storage Devices Hard drive/ Hard disk Flash drives/ USB memory sticks
CD R/W
Floppy Disk

12. Why is a Computer so Powerful?
Speed
Reliability
Storage
Ability to Communicate with others

13. How does a computer know what to do?
A computer must be given a set of instructions. This is called Software.
Examples of Software:
Word
Games
Explorer

14. What carries out these instuctions?
Computer hardware is what carries out the set of instructions.
Examples:
Keyboard
Mouse
Monitor
Difference:
You can touch hardware
You cannot touch software

15. Computer Units Hertz: How fast the microprocessor runs; clock speed
Bytes: Units of information storage
Metric Prefixes:
Kilo (1 x103)
Mega (1 x 106)
Giga (1 x 109)
Tera (1 x 1012) Very large number!!!!

16. Your Computer’s
Hard drive
Network drives
(hard drives on network)
Computer’s Hard drive space in GB

17. Memory Types of Memory: RAM: Random Access Memory (temporary)
RAM makes your computer run smoothly
RAM is like cramming a bunch of information in your head right before the test
ROM: Read Only Memory
(permanent)

18. Operating System
Definition: software that is responsible for the management and coordination of activities
Most Common Operating System:
Windows
2000 XP
Vista
Windows 7
Windows 8
Windows 10

19. THE
END