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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 are base tables of an aggregate object? The tables making up an aggregate object (primary and secondary) are known as aggregate object.
How exceptions are handled in java? Exception handing In Java: A java exception is an object which describes an exceptional condition which has occurred in a piece of code.
What is system conception? It deals with genesis of an application and formulating tentative needs. The purpose of the system conception is to defer details and understand what
To work with Internet as well as to utilize its facilities we use certain tools. For illustration, Telnet is a tool, which is utilized for logging on remote computers on the Intern
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What should the size of ''t'' in btree be depending on the hard disk size
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Define memory management system? The part of the computer system that supervises the flow of information among auxiliary memory and main memory is known as memory management sy
Q. How can data and instructions are put into the computers? The data and instructions to a computer are provided by external environment. It determines that input devices are
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