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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.
The heart of a computer is often one integrated circuit; one typical circuit is a 68Hc11 Microprocessor. Let us consider a typical 68Hc11 hardware design. The mic
This assignment is based on the 'Swansea Docklands Heritage Society' case study attached. The assignment is the third of three related submissions, all based on the Swansea Dockla
How many flip flops are required to construct a decade counter ? Ans. 4 FlipFlop's are required because decade counter counts 10 states from 0 to 9 (that is from 0000 to 1001).
Synchronous dynamic random access memory (SDRAM) is dynamic random access memory (DRAM) that is initialized with the system bus. Classic DRAM has an asynchronous interface, which m
Documentation is done to give others with information and ease maintenance. The best documentation is done in the headers (function and scripts) and directly in the code. Any usefu
Q. Define critical mass and critical volume? The minimum size in which at least one neutron is available for further fission reaction. The throng of the fissile material at the
Broad Band ISDN handles data rate of about (A) 64 kbps (B) 100 mbps (C) 5.4 mbps (D) 2.048 mbps
Which device changes from serial data to parallel data ? Ans. Demultiplexer is the device that changes from serial data to parallel data. Demultiplexer takes data in from on
Differentiate between asynchronous and synchronous types of serial communication. Serial data communication uses two fundamental types, asynchronous andsynchronous. With synchr
Q. Limitations of execution of instructions? 1. Size of memory shown in 16 words while instruction is capable of addressing 210 =1 K words of Memory. However why 210 since 10 b
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