Importance of computer and Internet

2. Computer:
 A computer is a machine that can be programmed to
manipulate symbols.
It responds to a specific set of instructions in a well-
defined manner.
It can execute a prerecorded list of instructions (a
program).
It can quickly store and retrieve large amounts of data.

4. Parts of Computer
CPU (Central Process Unit)
Input Devices:
i. Key Board
ii. Mouse
iii. Scanner
 Output Devices:
i. Monitor
ii. Speaker
iii. Printer
Storage Devices:
i. Hard Disk
ii. Flash
iii. Memory Card

5. Types of Computer
 Personal computer:
A small, single-user computer based on a microprocessor.
 Workstation:
A powerful, single-user computer. A workstation is like a personal
computer, but it has a more powerful microprocessor and, in general, a
higher-quality monitor.
 Minicomputer:
A multi-user computer capable of supporting up to hundreds of users
simultaneously.
 Mainframe:
A powerful multi-user computer capable of supporting many
hundreds or thousands of users simultaneously.
 Supercomputer:
An extremely fast computer that can perform hundreds of millions of
instructions per second.

6. Advantages
Faster Communication
Information Resources
Entertainment
Social Networking
Online Services

7. Disadvantages
Theft of Personal Information
Virus Threat
Social Disconnect

9. Internet
A system connecting computers around
the world using TCP/IP, which stands
for Transmission Control
Protocol/Internet Protocol, a set of
standards for transmitting and
receiving digital data.

10. Importance of Internet
 Easy way of getting information
 Communication Revolution
 Removal of border on nations
 Quick data sharing
 Remove Hurdles in field of Education, Health and
other Social Sectors

11. Uses of Internet
 Research
 E-Book
 Email
 Networking
 Current Event
 Blogging
 Shopping
 Travelling

12. Uses of Internet
 Research
 E-Book
 Email
 Networking
 Current Event
 Blogging
 Shopping
 Travelling

13. Role of Computer and Internet in Agriculture
Provide reliable access to markets (local, regional and
international) through affordable communications ( email)
Improve contact with suppliers, and transport links to and from
markets (e.g., Through databases of enterprises, products, and
suppliers)
Inform choices, particularly regarding prices of raw materials and
finished goods, enabling better prices for enterprises when dealing
with traders.

14. Provide information about weather forcasting for thier crops.
Give access to legal information, including information on contract
law, tax law, Via internet sevice.
Provide improved access to information about financial services,
and access to financial services (e.g., via micro-finance institutions
MFIs).