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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 the role of World Wide Web in the field of e-commerce. In the 1990s, the arrival of the World Wide Web on the Internet had shown a turning point in e-commerce by givin
Explain the working of light pens Light pens still exist, but due to several disadvantages they are not as popular as other input devices that have been developed. For example,
The number 140 in octal is equivalent to decimal number ? Ans. (140) 8 = (96) 10 As 1 x 8 2 + 4 x 8 + 0x 1 = 64 + 32 = 96
What is branch instruction? As a result of branch instruction is a type of instruction which loads a latest values into the program counter.
What are the simplest way to restrict the users The simplest way to restrict the users to peek inside the internals of the Web site is to use firewalls, where the information c
Depth-first search is different from Breadth-first search in the following ways: A depth search traversal method goes to the deepest level of the tree first and then works up w
Your professor wants you to fill a two-dimensional N by N matrix with some numbers by following a specific pattern. According to his explanation as in the figure below, you have to
how to breadboARD THE 4 BIT COMPARATOR
Mr. X seems to view himself in positive terms (MMPI-2: Ho=38) as a well-functioning person who is capable of dealing with his life and personal challenges (MMPI-2: LSE=41, TRT=39),
Q. Decoding of slightly encoded micro-instructions? Generally micro-programmed control unit designs are neither totally unencoded nor highly encoded. They are slightly coded. T
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