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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.
An 8-bit successive approximation ADC has a resolution of 20mV. What will be its digital output for an analog input of 2.17V? Ans: Given data Resolution =20mv Analog input =2.
How many select lines will a 16 to 1 multiplexer will have ? Ans. For 16 to 1 MUX four select lines will be needed to select 16 (2 4 ) inputs.
Real time (transaction) processing In real time (transaction) processing files are generally updated in real time (for example when booking flights on an airplane); however in
What is Circular shift The circular shift is also called as rotate operation. It circulates bits of the register around two ends and there is no loss of information. This is do
Q Write a menu driven program to perform subtraction in base 5 using r and (r-1) complement with necessary validations.
What is a Multiplexer Tree? Ans Multiplexer Tree: The largest available MUX IC is 16 to 1. Meeting the larger input requires there must be a provision to expand this. It
How the at-user command serves mainly in lists? The AT USER-COMMAND event serves mostly to handle own function codes. In this case, you should make an individual interface wit
Explain any two methods of implementing interacting processes. Two methods of implementing interacting process are given below: (i) Shared memory solution: In this scheme
Variable ordering - Forward checking: Hence this is different from variable ordering in two important ways as: Whether this is a dead end when we will end up visiting a
c-program for the minimum total number of shelves
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