Computer Network

666 views

Published on

Published in: Education, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
666
On SlideShare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
48
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Computer Network

  1. 1. Computer Network www.eshikshak.co.in
  2. 2. Definition● When two or more computers are interconnected with each other but located at different geographical location● To share resources and data . www.eshikshak.co.in
  3. 3. Basic Elements of Communication System● Message – information such as data like text, picture, sound, video etc are to be communicated● Sender - Creates and sends a message● Medium – Carries the message● Receiver – Receives the message● Protocol – set of rules that govern data communication SENDE Receiver R Mediu m www.eshikshak.co.in
  4. 4. Data Transmission Mode● There are three modes of data transmission ○ Simplex ○ Half Duplex ○ Full Duplex www.eshikshak.co.in
  5. 5. Simple xwww.eshikshak.co.in
  6. 6. Simplex● Transmission of data in only one direction is known as simplex transmission mode● Devices used in such communication system are either read only or send only. For example ● Keyboard ● Printer ● Pager ● Wakie-Talkie
  7. 7. Half-Duplexwww.eshikshak.co.in
  8. 8. Half Duplex● A communication system in which we can transmit data in both directions but in only one direction at a time.● It alternates sender and receiver.● Requires two channels www.eshikshak.co.in
  9. 9. Full-Duplexwww.eshikshak.co.in
  10. 10. Full Duplex● A communication system in which we can send and receive data in both directions at a time www.eshikshak.co.in
  11. 11. www.eshikshak.co.in

×