Modem (used in data transmission) was invented when and in which country?
Modem (used in data transmission) was invented when and in which country?
The correct option is A 1963, USA
Modem (used in data transmission) was invented in
1963 and in USA.
Short for modulator-demodulator. A modem is a
device or program that enables a computer to transmit data over, for example,
telephone or cable lines. Computer information is stored digitally, whereas
information transmitted over telephone lines is transmitted in the form of
analog waves.
When an analog facility is used for data
communication between two digital devices called Data Terminal Equipment (DTE),
modems are used at each end. DTE can be a terminal or a computer. The modem at
the transmitting end converts the digital signal generated by DTE into an
analog signal by modulating a carrier.
Digital modems developed from the need to transmit
data for North American air defense during the 1950s. Modems were used to
communicate data over the public switched telephone network or PSTN. Analog
telephone circuits can only transmit signals that are within the frequency
range of voice communication. A modem sends and recieves data between two
computers. Modem stands for modulate/demodulate.
Modem (used in data transmission) was invented in 1963 and in USA.
Short for modulator-demodulator. A modem is a device or program that enables a computer to transmit data over, for example, telephone or cable lines. Computer information is stored digitally, whereas information transmitted over telephone lines is transmitted in the form of analog waves.
When an analog facility is used for data communication between two digital devices called Data Terminal Equipment (DTE), modems are used at each end. DTE can be a terminal or a computer. The modem at the transmitting end converts the digital signal generated by DTE into an analog signal by modulating a carrier.
Digital modems developed from the need to transmit data for North American air defense during the 1950s. Modems were used to communicate data over the public switched telephone network or PSTN. Analog telephone circuits can only transmit signals that are within the frequency range of voice communication. A modem sends and recieves data between two computers. Modem stands for modulate/demodulate.
