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Explain difference between Scanning and parsing.
Scanning and parsing: Scanning process is the process of recognizing the lexical components in a source string whereas parsing is the process of checking the validity of a source string, and to find out its syntactic structure. The purpose for separating scanning from parsing is that the lexical characteristics of a language can be specified by using Type-3 grammars. All Type-3 production identifies lexical components is also a Type-2 production. Conversely, a recognizer for Type-3 productions is easier, simple to build and more efficient throughout execution than a recognizer for Type-2 productions. Therefore it is better to handle the lexical and syntactic elements of a source language separately.
explain in RAID
Q. Define Point-to-point Communication? The simplest form of message is a point to point communication. A message is sent from the transmitting processor to a receiving process
What is a co-processor? What is its use in a typical microprocessor based system. 8087 NDP (numerical data processor) is also called math co-processor which is used in parallel
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Explain the uses of thumbwheels Two thumbwheels are usually required to control the screen cursor in its horizontal and vertical position respectively. As the name implies,
Nanoprogramming: Second compromise: nanoprogramming it use a 2-level control storage organization Top level is a vertical format memory Output of the top level
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The most useful feature of an expert system is the high level expertise it provides to aid in problem solving. This expertise can represent the best thinking of the top
RST 4.5 is known as TRAP.
How is Transaction Processing System affect performance of e-commerce sites? Transaction Processing System influences performance of e-commerce sites: Transaction-Processing
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