0 standard allows for transfer speeds of up to 5G bits per second
To compete, the cable TV companies will offer modems to attach to their coaxial cable, providing up to 30 million bits per second
downstream into our computers, and about 400,000 bits per second
upstream from our computers, also adequate bandwidth for bi-directional video and audio teleconferencing.
6 bits per second
predicted by the best previous approaches, which used slower systems and then extrapolated to calculate a theoretical peak.
The modulator's switching speed is fast enough to generate more than a billion data bits per second
, which is 50 times fast as any previous silicon-based modulator.
8 billion bits per second
of private, dedicated bandwidth to each building.
3 billion bits per second
- and even faster when several of the chips are hooked up together.
The speed of modems is not increasing rapidly - it has risen by more than eightfold, from 300 baud (bits per second
) to 28,800 baud, in the past 12 years - but interest in the Web encourages telecommunication companies to invest in and develop faster digital access, with communication protocols such as ISDN ( about $30-40 per month in urban areas), switched 56 kilobit (56,000 bits per second
) dedicated lines, cable modems, and faster digital line signaling protocols (ADSL) that promise to carry data at millions of bits per second
over standard twisted pair copper wires we already use for telephone calls.
To reach planned transmission rates of 40 billion bits per second
(Gb/s)--up from today's maximum rate of 10 Gb/s--telecommunications companies would have to install a new generation of Optical cables that retain the quality of fast signals better than existing cables do.