Identify and describe the three communications elements.

What will be an ideal response?


Communication elements consists of transmitter, transmission line, and receiver. Transmitter is an electronic device that has ability to modulate or encode information in an analog or digital format and send them to a receiver over a transmission media. Transmission line is a medium (guided such as twisted wire, coaxial cable, or optical fiber or unguided such as air) to transfer the modulated or encoded output signal of transmitter to a receiver with a minimum lost in the transmitted signal. The lost of the transmitted signal in a transmission line depends on its physical and electronic characteristics. Receiver is also an electronic device that has ability to receive a modulated or decoded signal from transmission line and then demodulate or decode it.

Computer Science & Information Technology

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Which input statement reads the following standard input stream and stores 6.7 in a (type float), 12 in b (type int), Ben in d (type string) and % in c (type char). :

xyz 6.7Ben % 12 a) cin >> c >> c >> c >> c >> a >> d >> c >> b; b) cin >> d >> a >> b >> c >> d; c) cin >> d >> a >> d >> c >> b; d) cin >> d >> a >> c >> d >> c >> b;

Computer Science & Information Technology

Prices for computer projection devices are US$199 and up, with ____________________ projectors costing a bit more than LCD projectors with similar features.

Fill in the blank(s) with the appropriate word(s).

Computer Science & Information Technology

Data in data structures, such as linked lists and binary trees, cannot be sorted.

Answer the following statement true (T) or false (F)

Computer Science & Information Technology

A heat sink is a small ceramic or metal component with fins on its surface that absorbs and disperses heat produced by electrical components such as a processor.

Answer the following statement true (T) or false (F)

Computer Science & Information Technology