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Authors:
Linda Null ,julia Lobur
Chapter:
Marie An Introduction To A Simple Computer
Exercise:
Review Of Essential Terms And Concepts
Question:12 | ISBN:9780763704445 | Edition: 3

Question

12. What is the difference between synchronous buses and non-synchronous buses?

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Answer

  • A Synchronous bus is called "SYNCHRONUS" because it  transmits bits of data by using a shared clock signal to synchronize the timing of both the sender and the receiver
  • An Asynchronous bus, on the other hand, does not require a common clock signal to be shared between sender and receiver in order to work.

Some of the differences between Synchronus and Asynchronus Buses are:

 

Synchronous bus:

  • Transmitter and receivers are synchronized of clock.
  • Data bits are transmitted with synchronization of clock.
  • Character is received at constant Rate.
  • Data transfer takes place in block.
  • Start and stop bit are required to establish communication of each character.
  • Used in high – speed transmission.

Asynchronous bus:

  • Transmitters and receivers are not synchronized by clock.
  • Bit’s of data are transmitted at constant rate.
  • Character may arrive at any rate at receiver.
  • Data transfer is character oriented.
  • Start and stop bits are required to establish communication of each character.
  • Used in low – speed transmission.
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