PROGRAMING IN C BY BALAGURUSWAMY PDF

Transmission is in half-duplex mode. For PSK the baud rate is the same as the bandwidth, which means the baud rate is But in 8-PSK the bit rate is 3 times the baud rate, so the bit rate is 15, bps. In the analog transmission of digital data, the signal or baud rate is less than An analog signal has a bit rate of bps and a baud rate of baud. If the difference between the two frequencies f1 and f2 is 2 f, then the required BW B 27 Apr By transmitting more than one bit per baud, higher data rates can be transmitted in a narrower channel.

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We cannot extend the range of character. We can extend the range of float by using double. To extend the precision further we may use long double. Question: What is an unsigned integer constant? What is the significant of declaring a constant unsigned? We can take the value double using an unsigned integer constant. Question: Describe the characteristics and purpose of escape sequence characters.

Answer: C supports some special back slash character constants, that are used in output function. This characters are known as escape sequence characters. Answer: A variable is a data name that may used to store a data value.

Like constants that remains unchanged during the execution a program. The meant of value it is a variable name and it can take any value like character, int, float and double. Question: How do variables and symbolic names differ? Answer: A variable may be used to store data value.

A variable may take different values at different times during execution of a program. Variables has need to declare at the beginning of the body but after the main. Symbolic names is a unique constants. This constants may appear in a number of place in the program.

Symbolic names has need to define at the beginning of a program. Question: State the difference between the declaration of a variable and the definition of a symbolic name? Answer: Variables has need to declare at the beginning of the body but after the main. The syntax for declaring a variable is as follow: Data-type v1,v2,……..

For example, valid declarations are int count; int number,total; float ratio; Symbolic names has need to define at the beginning of a program. Why it is important? Answer: The process of giving initial values to variables is called initialization.

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