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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.
Write shorts notes on Digital Signature. This method is used to authenticate the sender of a message. For sign a message, the sender encrypts the message by using a key ident
Q. General use of cluster computing? A general use of cluster computing is to balance traffic load on high-traffic web sites. In web operation a web page request is transmitted
Electronic typewriter : An electronic typewriter has a 'memory' or 'electronic brain' which enables it to recall the whole document at a time and type it automatically at the pres
Define Step by Step Procedure in Computer Programming? The Computer programming is the skill and art of creating a computer program a defined set of instructions in source code
Real Life Business Subsystems A Subsystem is a component of a System even though it can also be described as a system in its own right. Consider a manufacturing firm. It compr
define resolution in CRT
Part I: 1. The program starts by printing your initial with an end sign ">". For example, "cjx >"; 2. Then, you can type in the following "vi filename". For example, "vi myp.c
f(x)^2=f(x) - x
The Function code currently active is ascertained by what Variable? The function code at present active in a Program can be ascertained from the SY-UCOMM Variable.
Explain The Boolean Equations for Logic Circuits? A Boolean equation is the mathematical representation of a logic circuit using standard Boolean terms. All the logic gates (AND,
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