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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 about the Flash memories These are re-writable non-volatile memories evolved from EEPROM; they are generally connected to the USB port on the computer enabling a user t
The decimal equivalent of Binary number 10101 is ? Ans. 1x2 4 + 0x2 3 +1x2 2 +0x2 1 + 1x2 0 = 16 + 0 + 4 + 0 + 1 = 21.
Address phase timing: On the rising edge of clock 0, the initiator notes IRDY # and FRAME# both high, and GNT# low, so it drives the command, address and asserts FRAME# in tim
Explain about the Voice recognition device Blind and partially-sighted people can communicate with a computer using microphone and software (keyboard and touch screens can't be
Class is a user-defined data type in C++. It can be formed to solve a particular kind of problem. After creation the user require not know the specifics of the working of a class.
A universal logic gate is one, which can be used to generate any logic function. Which one is a universal logic gate? Ans. NAND gate is a universal logic gate; it can generate
Which property on a Combo Box do you set with a column name, prior to setting the Data Source, to display data in the combo box? ComboBox.DataValueField = "ColumnName" When
TCP and UDP are both transport-level protocols. TCP is designed to give reliable statement across a variety of reliable and unreliable networks and internets. UDP gives a conne
What is an imperative statement? Ans. Shows an action to be performed throughout execution of assembled program is an imperative statement.
Show some characteristics of Linux? It's a Unix-like computer operating system one of the most major examples of free software and open source development: typically all underl
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