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Define external layer?
The external layer is the plane at which the user sees and interacts with the data, that is, the data format in the user interface. This data format is free of the database system used.
Q. Characteristics of Magnetic disk? Tracks and Sectors: Disk is divided in concentric rings known as tracks. Thus a track is one complete rotation of disk underneath read/wr
Explain Top down parsing. Top down parsing: Specified an input string, top down parsing tries to derive a string identical to this by successive application of grammar rule
Parallelism based on Granularity size Granularity: Granularity or Grain size is a determine which measure how much computation is devoted in a process.Granularity size is
Explain POP (Post Office Protocol). The Post Office Protocol gives remote access to an electronic mail box. The protocol permits a user's mailbox to reside on a computer which
about java types
Define the PUBLIC and EXTRN directives- Assembler directives PUBLIC and EXTRN directives are very significant to modular programming. PUBLIC used to declare that labels of data
Draw and explain the function of dual slope analogue to digital converter. Derive the equations used. Ans. Dual slope A/D converter : This has 4 main blocks.
Q. What is task identifier? Each and every PVM task is uniquely recognized by an integer known as task identifier (TID) assigned by local pvmd. Messages are received from and s
What is the use of buffer register? The buffer register is used to avoid speed mismatch among the I/O device and the processor.
What is MASK OPERATION The mask operation is similar to selective-clear operation except which the bits of Aare cleared only where there are corresponding 0's in register B. th
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