The links connecting Nodes are called COMMUNICATION CHANNELS Networks- Why we need them?
A Sine wave has a frequency of 6 Hz. What is its period?
A Sine wave completes one cycle in 4 seconds. What is its frequency?
Q: How do we relay encoded data from the generating device to the next device?
Do we send one bit at a time or do we group bits into larger groups and if so, How?
The functional specifications of EIA 449 give the DB 37 pins properties similar to those of the DB 25.
First commercial modems by Bell Telephone Co.