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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 a simple paging system, what information is stored in a typical Look-aside Buffers TLB table entry? A classical TLB table entry contains page# and frame#, while a logical
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Write explanatory notes on Microprocessor development system. Microprocessor development system: Computer systems have undergone many changes recently. Machines which once fi
UDP (User Diagram Protocol) is? It is both Connectionless and Message Oriented.
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A PCM system uses 8 bits per sample and the analog signal is limited to 4.3 kHz. The PCM data is transmitted using (a) BFSK and (b) ASK. Determine the bandwidth required for transm
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