Hardware & Software System

C is a programming language developed at AT & T's Bell Laboratories of USA in 1972.It was designed and written by a man named Dennis Ritchie. In the last seventies C began to replace the more familiar languages of that time like PL/I, ALGOL, etc. No one pushed C. It was not made the "official" Bell Labs language. Thus, without any advertisement, C's reputation spread and its pool of users grew. Ritchie seems to have been rather surprised that so many programmers preferred C to older languages like FORTRAN or PL/I, or the newer ones like pascal and APL. But, that's what happened.              Possibly why C seems so popular is because it is reliable, simple and easy to use. Moreover, in an industry where newer languages, tools and technologies emerge and vanish day in and day out, a language that has survived for more than three decades has to be really good. An opinion that is often heard today is C' has been already superceded by languages lik...

The octal number system uses the digits 0,1,2,3,4,5,6 and 7. The  base  or  radix  of    this system is eight. Each significant position in an octal number has a positional weight. The least significant position has of 8 0 there is 1; the higher significant positions are given weights in the ascending power of eight, there is, 8 [1] , 8 [2] , 8 [3] , etc. respectively. The octal equivalent of a decimal number can be obtain by dividing a given decimal number by 8 repeatedly, until a quotient of 0 is obtain. The procedure is exactly the same as the double-double method explained earlier.