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Why must a modem be used to transmit binary data through a PSTN? (1) Use sketches and additional text to describe the following modulation methods. (a) Amplitude shift keying (b) Frequency shift keying (2) Discuss the factors that influence the choice of carrier frequency and the bandwidth used by the demodulator section of a modem.
Define congestion and grade of service. Congestion : This is uneconomic to give sufficient equipment to carry all the traffic which could possibly be offered to a telec
Control Unit (CU) : Every PEs are under the control of one control unit. CU controls the inter communication among the PEs. There is a local memory of CU also known as CY memory.
Comparison between risc and cisc - computer architecture: CISC Emphasis on hardware Includes multi-clock complex instructions Memory-to-memory
How does VB.NET/C# achieve polymorphism? VB.Net / C# give polymorphism through the following mechanisms: 1. Inheritance - base class gives overridable methods which are re-
Can SMTP be used as transfer protocol for Web pages? Why? SMTP is an easy mail transfer protocol. This uses ASCII text for all communications. SMTP needs reliable delivery- the
Q. What is multi-threaded unix kernel? Multi-threaded UNIX kernel: We know threads are light-weight processors demanding minimal state information comprising the processor stat
What are conditional chain statement? ON CHAIN-INPUT similar to ON INPUT. The ABAP/4 module is called if any one of the fields in the chain having a value other than its in
Define clock rate? The clock rate is given by, R=1/P, where P is the length of single clock cycle.
Concept of Temporal Parallelism In order to make clear what is meant by parallelism inherent in solution of a problem, let's discuss an example of submission of electricity b
Explain Bottom-up Parsing Techniques A parser can begin with the input and attempt to rewrite it to the start symbol. Instinctively, the parser attempts to locate the most bas
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