Computer & details

1. Prepared By:
N

2. Introduction to Computers
Meaning of Computer
1.Mechanical Device
2.Accepts Input
3.Provides Output

3. Types of Computers
>Personal computer
>Notebook computer
>Personal Digital Assistant

4. History of Computers
 1st Generation (1946-ENIAC)
1. Vaccume tubes
2. Memory of mercury
& magnetic drums
3. Huge
 2nd Generation (Late-1950’s)
1. Tubes with transistor
2. Memory with magnetic
cores
3. Size reduced

5.  3rd Generation (1964-IC)
1. Integrated circuits
2. Online system
3. Magnetic tapes
 4th Generation (Mid-1970’s)
1. Chips introduced
2. Microprocessor, PC
3. Accuracy
4. Increased efficiency
 5th Generation (Future Computer)
1. Sophisticated
2. Artificial inteligence

6. Input Devices
• Keyboard, Mouse
• Joysticks
• Touch screen
• Scanner
• Voice, Audio Input
• Web Cams, Digital Camera

7. Output Devices
• Monitor
• Video Card
• Printers
Dot-matrix , Ink-jet , Leaser
printer
• Speakers

8. Storage Devices
• Floppy Disk
• Hard Disk
• Compact Disk
• Pen Drive

9. Advantages of Computers
• Create Correspondence
• Entertainment
• Communication
• Educational Purpose
• Training Purpose
• Speed,Accuracy

10. Disadvantages of Computers
• Incapacity to take Decisions
• Reduces I.Q
• Requires Proper Maintenance
• Leaking of private, confidential data
• Prolonged use may damage eyesight

11. THANK YOU