TCS Papers: Sample Questions 362 - 363 of 502

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Question number: 362

» Basic CS » Networks

Essay Question▾

Describe in Detail

What is LRC?


  • LRC means Longitudinal or horizontal Redundancy Check- verifies the accuracy of stored and transmitted data using parity bits.

  • Applied to a parallel group of bit streams.

  • Data to be transmitted is divided into transmission blocks into which additional check data is inserted.

Image shows the LRC

Image Shows the LRC

Given the image is define the longitudinal redundancy check (LRC)

  • LRC increases the likelihood of detecting burst errors.

  • If two bits in one data units are corrupted and two bits in exactly the same positions in another data unit are also damaged, the LRC checker will not detect an error.

Question number: 363

» Languages » C & C Plus Plus

Essay Question▾

Describe in Detail

What is C language?


  • The C programming language is a structure oriented programming language, developed at Bell Laboratories in 1972 by Dennis Ritchie

  • Derived from an earlier language called “B” (Basic Combined Programming Language – BCPL)

  • Invented for implementing UNIX operating system

  • In 1978, Dennis Ritchie and Brian Kernighan published the first edition “The C Programming Language” and commonly known as K&R C

  • In 1983, the American National Standards Institute (ANSI) established a committee to provide a modern, comprehensive definition of C. The resulting definition, the ANSI standard, or “ANSI C”, was completed late 1988.

  • C is regarded for its efficiency, and is still the most popular programming language for writing system software, though it is also used for writing applications.

Image shows the C language

Image Shows the C Language

Given the image is define the C programming diagrams