modems Does the humble teleph angiotensin-converting enzyme lines play a major musical note in shaping the third millennium? Can a mere pair of thin copper wires twisted robustious each other transmit Internet data dependably and securely at blazing fast speed, making it numeric to view high-quality moving images, sound and vast amounts of data on your personal computer screen or television? The dispense up is yes, as the growing success of DSL (digital reviewer line) engine room abundantly demonstrates. The capacity of a communications channel depends on its bandwidth and its signal/noise ratio.
A translator connection thro ugh a conventional phone net profit uses a bandwidth of about 3,000 round (Hz): from about 300 Hz to 3,300 Hz. An analog modem operating at 33.6 kilobits per second (kbps) requires a slightly wider bandwidth 3,200 Hz and needs a very good connection, one with a high signal-to-noise ratio. Modems operating at 56 kbps achieve their rates by taking advantage of digital connections that circumvent some sources of ...If you demand to get a intact essay, order it on our website:
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