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Q. Explain about disk caching scheme?
The disk caching scheme can be used to speed up performance of disk drive system. A set (cache) of buffers is assigned to hold some disk blocks that have been recently accessed. In effect the cached blocks are in memory copies of disk blocks. If data in a cache buffer memory is modified only local copy is updated at that time. Therefore processing of data occurs using cached data avoiding need to frequently access disk itself.
The Chocolate Delights Candy Company requires to add the following functionality to its cash register: When a customer is checking out, the cash register requires keeping the ne
What is a screen group? How it is useful? Screen group is a field in the Screen Attributes of a screen. Here we can explain a string of up to four characters which is availa
What are compilers and interpreters? Compiler and Interpreter: These are two types of language translators. A compiler changes the source program (user-written program) int
What is the difference between wire and reg Wire Wire is used for designing combinational logic, as we all know that this type of logic cannot store a value. As you can
What is the benefit of Report Wizard over an Auto Report? It takes a little more work to make a report with the report wizard than with the Auto Report but you have a lot more
What are the advantages of using XML over HTML? The root cause of the problem lies in HTML (Hyper Text Mark-up Language), the defacto standard for web publication. The main pr
Q. Execute a reduce operation over members of specified group? int info = pvm_reduce( void (*func)(), void *data, int count, int datatype, int msgtag, char *group, int root
Differentiate between WML-Script and Web-based scripting languages. WML Script is a lightweight procedural scripting language, optimized for small-memory, low-power CPU wireles
Basic elements of Assembly language: Any Assembly language which consists 3 types of instruction statements that are used to define the program operations: Data secti
Explain in brief about the broadband It isn't just computers which can be linked without wires, different peripheral devices can be linked to a computer system without the need
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