why digital signals are used in computer systems?
define bit rate.
write the merit and de merit of ring topology.
write differentiate between LAN and WAN
Answers
Answer:
Digital signals are a more reliable form of transmitting information because an error in the amplitude or frequency value would have to be very large in order to cause a jump to a different value. Signals are composed of infinite possible values.
bit rate : the number of bits per second that can be transmitted along a digital network.
Reduced chances of data collision as each node release a data packet after receiving the token.
Token passing makes ring topology perform better than bus topology under heavy traffic.
No need of server to control connectivity among the nodes.
Equal access to the resources.
A LAN (local area network) is a group of computers and network devices connected together, usually within the same building. ... A WAN connects several LANs, and may be limited to an enterprise (a corporation or an organization) or accessible to the public. The technology is high speed and relatively expensive.
Explanation: