Moderns, Basic Computer Science


As it was explained earlier, communications channels can operate in either the Analog or digital mode. However, a given circuit can operate only in one mode not both of them at the same time. Thus, there is need for translating from one to the other of the two modes. All voice communication occurs in the analog mode; yet, when we use voice-grade channels to transmit data we need to communicate with the receiving or sending computer in the digital mode. Modems are devices which function as "translators", changing the digital signals coming out of the terminal to analog so that it can travel along a voice-grade channel. At the receiving end, there is another modem, retranslating the analog signal into the digital signal the computer can accept Modem stands, for modulation-demodulation. Some modems are built into the terminal. 

Posted Date: 10/24/2012 5:10:42 AM | Location : United States

Related Discussions:- Moderns, Assignment Help, Ask Question on Moderns, Get Answer, Expert's Help, Moderns Discussions

Write discussion on Moderns
Your posts are moderated
Related Questions
Mike sells on the average 15 newspapers per week (Monday – Friday). Find the probability that 2.1 In a given week he will sell all the newspapers

can you help me to do my assembly program homework

what is the logic diagram for the Boolean expression x''y + xy'' + xz

Sequential-access memory device: A  Sequential-access  memory device reads data in sequence. In other words, information on a serial device can only be retrieved in the same s

Diskless workstations:    Most people assume that the operating system is stored on a disk that is connected directly to the computer, but this is not necessarily true. If the

write a c program of minimum shelf

what is the difference between internet and world wide web?

how to set up the location (e.g. plaza, hall of fame, lecture theater or etc.) and services that will be used during the exhibition; devices needed; and finally produced a compreh

QUESTION a) Differentiate between a dynamic and a static web site. b) Why are electronic mails (e-mails) preferred to the post office mails? How do they affect the modern of

Question 1 Explain synchronous and asynchronous Data Replication Question 2 Write a short note on Access Time, Latency, Transfer Time, and Streaming Tape Question 3