The capacity of the transmission medium stated in bits per second.
examples: 10Mbps,100Mbps, 1000Mbps.


A structured collection of records or data that is stored in a computer system, usually a server. A database usually contains software so that a person or program can use it to answer queries or extract desired information.


A router used to connect a private network to a public network, typically the Internet.


A device for connecting multiple twisted pair or fibre optic Ethernet devices together, making them act as a single segment.


Multiple computers connected together using communication equipment for the purpose of sharing data.

PC (Desktop computer)

Personal Computer.


A device that attaches to two or more networks and routes packets from one network to the other. Routers send packets to other routers until they arrive at their final destination.


An application program that accepts connections in order to service requests by sending back responses.

examples: file server, print server, backup server.

Spam (Junk Mail,UCE,UBE)

Spam is indiscriminately sent unsolicited bulk messages. Email is the most widely recognized form of spam, it also refers to other media such as instant messages, SMS ,forums blogs and wikis.


A device to connect LANs or segments of the same media access type


Unsolicited Commercial Email is the most common form of Spam.


High-end computer, generally higher performance than a regular pc.


Routing is the act of moving information across a network from a source to a destination.

Data at Rest

Data at rest is information not accessed or changed frequently, including archived data, files stored on portable hard drives, backup tapes and disks.

End of Life (EOL)

"End-of-life" (EOL) is a term used  to indicate that a product is in the end of its useful life and is no longer supported or updated.