graphics processing unit (GPU)

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  DefiNITIOn  graphics processing unit (GPU) A  graphics processing unit  ( GPU ) is a specialized electronic circuit designed to rapidly manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display device. GPUs are used in embedded systems, mobile phones, personal computers, workstations, and game consoles. Modern GPUs are very efficient at manipulating computer graphics and image processing. Their highly parallel structure makes them more efficient than general-purpose central processing units (CPUs) for algorithms that process large blocks of data in parallel. In a personal computer, a GPU can be present on a video card or embedded on the motherboard. In certain CPUs, they are embedded on the CPU die. [1] In the 1970s, the term "GPU" originally stood for graphi...
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Give an historical account on C Language,

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Give an historical account on C language.


C programming language was developed in 1972 by Dennis Ritchie at bell laboratories of AT&T (American Telephone & Telegraph), located in the U.S.A.


Dennis Ritchie is known as the founder of the c language.It was developed to overcome the problems of previous languages such as B, BCPL, etc.

Initially, C language was developed to be used in UNIX operating system. It inherits many features of previous languages such as B and BCPL


Evolution of C programming language :

Chas often been termed as a "Pseudo high level language" or a "Middle level language" by many programmers. This is not because of its lack of programming power but because of its capability to access the system's low level functions. In fact C was invented specifically to implement UNIX. C instructions are compiled to assembly code, therefore, depending on the complexity of the code and on the compiler optimization capabilities,C code may run as fast as assemby. 

         Ken Thompson created the B language in 1969 from Martin Richard's BCPL (Basic Combined Programming Language). He used assembly language and B to produce the initial versions of the UNIX operating system. BCPL and B were typeless languages in which variables were simply words in memory. Dennis Ritchie of Bell Laboratories later converted B into C by retaining most of B's syntax in1972 and wrote the first compiler. This was implemented on DEC's PDP 11 and it was first used as the system's language for rewriting the UNIX operating system. Later on, UNIX, its tools and C grew simultaneously. In 1978, Kernighan and Ritchie wrote a book entitled 'The C Programming Language that became the language

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