EC285 Lecture Notes - Lecture 12: Portmanteau, Carrier Wave, Data-Rate Units
Document Summary
Bandwidth (digital bandwidth or throughput): a frequency measure of the ability of a communications system to transmit information from one place to another. Usually expressed as a number of transmitted bits per second (bps), kilobits per second (kbps), megabits per second (mbps), gigabits per second (gbps), or possibly terabits per second (tbps) Latency or delay: a measure of length of time it takes for a given quantity of data to be transmitted between its source and its destination. E. g. a truck carrying 10,000 1-terabyte hard disks, all full of data (roughly. 80,000,000,000,000,000 bits) for two days -a latency of 172,800 seconds -would have a bandwidth of about 463 gbps. Network connections in the lab top out at a measly 1 gbps bandwidth. Jitter: a measure of variation in latency. It"s effect on bandwidth is usually undesirable, i. e. it slows data transmission down.
