Computer Organization - Question and answer - 5

21. What is fetch execute cycle ?
The fetch execute cycle is the basic operation (instruction) cycle of a computer.During the fetch execute cycle, the computer retrieves a program instruction from its memory.  It then establishes and carries out the actions that are required for that instruction. The cycle of fetching, decoding, and executing an instruction is continually repeated by the CPU whilst the computer is turned on.

22. What is a cache ?
A cache is a smaller, faster memory, located closer to a processor core, which stores copies of the data from frequently used main memory locations.

23. What is Memory function complete (MFC) ?
Memory function complete or MFC is just a signal that tells the cpu that the current operation involving the memory is complete and by that definition it is obvious that MFC signal will be generated in case of write operation also as in the case of read operation.

24. What is ANSI ?
ANSI stands for the American National Standards Institute. Founded in 1918, ANSI is a voluntary organization composed of over 1,300 members (including all the large computer companies) that creates standards for the computer industry.

25. What is ANSA ?
ANSA is an architecture for building distributed systems that can operate as a unified whole such that the fact of distribution is transparent to application programmers and users. This is a fundamentally different approach from networking single systems together.
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