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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.
In what way the protection fault handler concludes? After finishing the implementation of the fault handler, it sets the change and protection bits and clears the copy on write
what is the basic diff between mbr and mdr
Fitness function - canonical genetic algorithm: Conversely the fitness function will use an evaluation function to calculate a value of worth for the individual accordingly th
E-brokerage. An e-brokerage is an investment house that permits you to buy and sell stocks and get investment information from its Web site.
What are latches and flipflops? There are two types of circuits as follows: a. Combinational b. Sequential Flipflops and latches both come into the category of "sequen
Explain LRU Page replacement algorithm. LRU policy: It expands to least recently use. This policy proposes that we remove a page that last usage is farthest from present time
How do you save data in BDC tables? The data in BDC tables is saved by using the field name 'BDC_OKCODE' and field value of '/11'.
Superscalar Processors In scalar processors, only one instruction is implemented per cycle. That means only single instruction is issued per cycle and only single instruction i
Can you explain what inheritance is and an example of when you might use it? The process of deriving a new class from an existing class is known as Inheritance. The old class i
At the bottom of the toolbar there is a box with two lesser boxes and an arrow. The uppermost box displays the present foreground color; the lowermost box shows the present backgro
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