Differentiate between narrow band, voice band and broad band.

Ans: The Data- Handling Capacity of media is referred to as its bandwidth. Bandwidth is the range of frequencies that is available for the transmission of data. Types of bandwidth are :

(1) Narrow Band: 
     These media communicate data with relatively slow speed examples are telegraph lines.

(2) Voice Band:
     These media are faster than narrow band. Most telephone lines which are used to carry microcomputer transmission, are voice band.

(3) Broad Band(also called wide band):
     These media transmit large  volumes of data at a high speed via microwave, satellite, coaxial cable, and fibre optic cable.