Introduction about computers

1. 19GN3101
Computer Skills
Session -1
1

2. Computer
A Computer an electronic device used to process data.
A computer is a device capable of performing computations and making
logical decisions at speed millions and even billion of times faster them
human beings can.

3. • Hardware - physical parts of the computer
• Software - instructions to the computer
• Data - raw facts the computer can manipulate
• People - also known as users
Computer System:

5. Computer Hardware - any part
of the computer you can touch.
• Processor
• Memory
• Input and Output Devices
• Storage Devices

6. Output
Some types of hardware devices.
Storage
Input
Input and
output
Processor
Memory

7. Software - electronic instructions to
the computer. Also referred to as a
“program.”
Two types:
• System Software
• Application Software

8. • Operating Systems
• Windows 95
• Windows 98
• OS/2
• Disk Utilities
System Software:

9. Application Software:
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•
•
•
Word Processing
Spreadsheets
Graphics
Databases
•
•
•
•
Entertainment
Educational
Communications
Presentation

10. Application software and system software
work together to provide useful output.

11. Software brings a computer to life.

12. Types of Computers:
• Supercomputer
• Mainframe
• Minicomputer
• Microcomputer
Mainframe computer

13. Supercomputer
Minicomputer
Microcomputer

14. Who Uses Computers?
• Military
• Doctors
• Educators
• Engineers
• Architects
• Musicians
• Filmmakers
• Attorneys
• Bankers
• Architects

15. A medical team using “robodoc” to assist in surgery.

16. Musicians can use MIDI technology
to compose and edit their work.