A computer is an electronic device which manipulates or transforms data. it accepts data, stores data, process data according to a set of instructions, and also retrieve the data when required. Hence it is known as a data processor.
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Data processors are just one of specialized computers mainly to process data. Not all the computers are Data processors, hence computer is NOT and should not be known as data processor. It is similar to say "Why is a human known as a male?"
Computers are able to sort and process data much faster than any other method. They speed up a job and make more efficient use of time.
Computer is an excellent tool for data processing because there are so many software which help us to do our work easier,fast,without any mistakes
We don't need computers, it's just that they are much quicker and far more reliable at processing and analysing large amounts of data and producing information that we can easily interpret.
Computers are much faster than humans for certain tasks, and - once they are programmed correctly - hardly commit any mistakes.
Your computer's processor is its brain. Sometimes called a central processing unit, or CPU, your processor manipulates data in response to your instructions. Together with the memory and video card, the CPU determines your computer's overall performance. An understanding of how processor speed works can help you purchase the right computer for your business or evaluate an existing computer's performance.
When you say that a computer has a 16 bit processor, you mean that the fundamental data size of the accumulator and registers is 16 bits. Examples of 16 bit processors include the DEC PDP-11, the Intel 8086/8088, and the MODCOMP Classic, circa 1980.
Differences between scalar and superscalar processors generally boil down to quantity and speed. A scalar processor, considered to be the simplest of all processors, works on one or two computer data items at a given time. The superscalar processor works on multiple instructions and several groups of multiple data items at a time. Scalar and superscalar processors both function the same way in terms of how they manipulate data, but their difference lies in how many manipulations and data items they can work on in a given time. Superscalar processors can handle multiple instructions and data items, while the scalarprocessor simply cannot, therefore making the former a more powerful processor than the latter. Scalar and superscalar processors both have some similarities with vector processors. Like ascalar processor, a vector processor also executes a single instruction at a time, but instead of just manipulating one data item, its single instruction can access multiple data items. Similar with the superscalar processor, a vector processor has several redundant functional units that let it manipulate multiple data items, but it can only work on a single instruction at a time. In essence, a superscalar processor is a combination of a scalar processor and a vector processor.
aray processor is a processor that performs computations on large arrays of data. It is of two types: (1) attached array processor. (2)SIMD array processor.
The output of an XSLT processor is a set of instructions that dictate how to display the XML data.