Bandwidth (computing)

In computing, bandwidth is the bit-rate of available or consumed information capacity expressed typically in metric multiples of bits per second.

Description

Variously, bandwidth may be characterized as:

• Network bandwidth
• Data bandwidth
• Digital bandwidth

Bandwidth in other fields

The term bandwidth is used differently in such fields as:

• Signal processing
• Wireless communications
• Modem data transmission
• Digital communications
• Electronics

In these fields, bandwidth is used to refer to analog signal bandwidth measured in hertz, meaning the frequency range between lowest and highest attainable frequency while meeting a well-defined impairment level in signal power.

Bandwidth in computing

The connection to the computing term is that, according to Hartley's law, the digital data rate limit, or channel capacity, of a physical communication link is proportional to its bandwidth in hertz.

See also

• Computer network
• Computing
• Signal process
• Web cache

External links

• Bandwidth (computing) @ Wikipedia