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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.
8086 microprocessor comprises two independent units: 1. Bus Interface unit 2. Execution unit Please refer to Figure below. Figure: The CPU of INTEL 8086 Microp
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Automatic Stock Control System in a Supermarket - Bar codes are associated to all goods/items sold by the supermarket as a means of identification - Every bar code is asso
Q. PVM communication model? A nonblocking receive as soon as returns with either data or a flag that data hasn't arrived while a blocking receive returns only when data is in r
Name two special purpose registers. Index register Stack pointer
What are condition code flags? The processor keeps track of information about the results of several operations for use by subsequent conditional branch instructions. This is a
What are the limitations of mobile devices? For mobile devices we require both PC-integrated applications and specialized mobile services quite than repurposed website content.
What is the main function of the memory-management unit? The runtime mapping from virtual to physical addresses is done by a hardware device known as a memory management unit
Explain the difference between depth first and breadth first traversing techniques of a graph. Depth-first search is dissimilar from Breadth-first search in the following way
What is a FIFO? FIFO is otherwise known as 'named pipes'. FIFO (first-in-first-out) is a particular file which is said to be data transient. Once data is read from named pipe,
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