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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.
Q. Show list files by Dir command? The Dir command can also be used to list files from the exacting directory. For example, the list of files present in the WORD directory in d
What is loader? Loader is a system software which having a set of utility programs. It will load the object program to the memory.
Drawbacks of linear arrays
What is precloud computing? Precloud computing is an email access was through a single computer, which also keeps all email messages. Example: Microsoft Outlook or Outlook Expr
What is Grade of service? Grade of service: In a loss system, the traffic carried through the network is usually lower than the actual traffic offered to the network through
Q. Illustrate why does a tea kettle sing? Answer:- There is a little attachment with a hole in it which acts as a whistle. It is inserted into the spout of the kettle as w
how to calculate delay for hazard?
Determine the types of software There are two types of software today: Application and systems. Meaning of the two changes computer to computer. As we concentrate on large c
Static RAM: No refreshing, 6 to 8 MOS transistors are needed to form one memory cell, Information stored as voltage level in a flip flop. Dynamic RAM: Refreshed periodically, 3
In a LAN network every system is identified by? In a LAN network all systems are identified through IP Address.
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