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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.
Define memory address map? Addressing of memory can be established by means of a table that specifies the memory address assigned to each chip. The tables, known as memory addr
Question 1: a) What are the phases of video production? b) What do you mean by storyboards? c) What are the differences between Point and Area (or Paragraph) Text?
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
What are the risks by customer's perspective in Electronic Payment Systems? Risks within Electronic Payment Systems: Through the customer's perspective are as follows:
A device, usually linked to a serial port of a computer, that transfer data over regular phone lines. Modem stands modulator demodulator; it changes a digital stream of data into s
Q. Define the Internal Users of system? Internal Users are employees of business for that an information system is built. Illustration are clerical and service staff, technic
Describe the 8251 A programmable communication interface
Explain the significance IPV6 over IPV4. The maximum size of an Ipv6 datagram is 65575 bytes, with the 0 bytes Ipv6 header. Ipv6 also describe a minimum reassembly buffer size:
What is Digitizers A common device for drawing, painting, or interactively selecting coordinate positions on an object is a digitizer. These devices can be used to input coordi
* Public, protected and private are 3 access specifier in C++. * Public data members and member functions are accessible outside the class. * Protected data members and memb
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