Frequency Division Multiplexing
Frequency division multiplexing (FDM) is a technique of multiplexing which means combining…
Telephone Modems
Modem is an abbreviation of “modulator demodulator”. It is a network device…
Different Block Coding Techniques
We need redundancy to ensure synchronization and to provide some kind of…
The Maximum Data Rate of a Channel
Data rate refers to the speed of data transfer through a channel.…
Analog Signals vs. Digital Signals
A signal is an electromagnetic or electrical current that carries data from…
Difference between Analog Communication and Digital Communication
1. Analog Communication : In analog communication the data is transferred with the…
TCP/IP Protocol Architecture Model
The OSI model describes an idealized network communications with a family of…
Communication Technologies – Hacking
Unauthorized access to data in a device, system or network is called hacking.…
Communication Technologies – Cookies
Cookies are small text files with their unique ID stored on your system by a…


