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Q. Explain Frequency-division multiplexing?
Frequency-division multiplexing (FDM) is a technique for data transmission widely used in telephone, radio, and cable TV systems in which the transmission frequency spectrum (i.e., bandwidth) is divided into smaller bands known as subchannels.
Data transmission between two stations can be achieved in either simplex, half-duplex, or full-duplex mode. In a simplexmode,mainly used in radio and TV broadcasts, information travels only in one direction. Thismode is rarely used in data communications. In half-duplexmode, used by radio communications, information may travel in both directions, but only in one direction at a time. The transmitter becomes the receiver and vice versa. In a full-duplex mode, information may travel in both directions simultaneously. This mode, used in telephone systems, adopts two different carrier frequencies.
What is Random access memory (RAM) This is a volatile memory (i.e. contents are lost when computer is switched off). A user can write or delete data and read the contents. Befo
What are the various address Translation schemes? Explain which scheme is used in Internet? Translation from a computer's protocol address to a corresponding hardware address i
Q. For function F(X, Y, Z) = ∑(1, 2, 3, 5, 6) using TRUTH TABLE only 1. Find POS expression 2. Simplify POS expression 3. Implement this simplified expression using t
Given a cell, we must determine its neighbouring cells i.e. those with which it shares a wall. The cells with an x are the neighbours of the cell c. Write the function getneighbour
design a gray to bcd code converter using 16:1 de multiplexe
As in PRAM there was not any direct communication medium between processors so a different model called as interconnection networks have been considered. In the interconnection net
what are the Database designs to avoid?
Why don't we permit a minimum degree of t=1 for a B-tree? According to the definition of B-Tree, a B-Tree of order n means that every node in the tree has a maximum of n-1 keys
State the features of Pentium series of microprocessors: Pentium is a 32-bit superscalar, CISC microprocessor. The term superscalar is used for processor that contains more th
Explain Time Switching. Time Switches: The principle of a time switch is demonstrated in figure. This connects an incoming n channel PCM highway to an outgoing n channel PC
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