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Q. Explain about Magnetic Disk?
A disk is circular platter constructed of nonmagnetic material known as substrate, coated with a magnetisable material. This is used for storing huge amount of data. Usually substrate has been an aluminium or aluminium alloy material. Recently glass substrates have been introduced. The glass substrate has some benefits including the following:
Some of the uses of append query are as follows ? You will save time by appending data to an existing table rather than manual update. ? Appending files based on particular
What is an on"*-input filed" statement? ON *-INPUT The ABAP/4 module is known as if the user has entered the "*" in the first character of the field, and the field has th
How many words can be acquired by arranging the letters of the word 'UNIVERSAL' in different way? In how many of them (i) E, R, S takes place together (ii) No two of the
Determine about the Security Policy In the United States, the government has a separate organisation looking after the security measures and providing guidelines to all departm
What is preemptive and nonpreemptive scheduling? Under nonpreemptive scheduling once the CPU has been allocated to a process, the process keeps the CPU unless it releases the C
E-Cash: E-cash is cash shown by two models. One is the on-line form of e-cash (introduced by DigiCash) which permits for the completion of all types of internet transactions.
What is the use of buffer register? The buffer register is used to avoid speed mismatch among the I/O device and the processor.
Explain LAN Topologies and its basic topologies. LAN Topologies: Network topology is a physical schematic that shows interconnection of the various users. There are four fund
Data, information and knowledge - Information System The nature of information can most easily be defined in the context of its relationship to data and knowledge. Bohn (1994)
Q. Illustrate the Cache Memory Operation? It comprises a copy of a part of main memory contents. When a program is running and CPU tries to read a word of memory (instruction o
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