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Hello, I need help with the following Computer Orginization problems. Any help you can provide is greatly appreciated!

If a systems instruction set consists of a 5-bit Opcode, what is the maximum number of output signal lines required for the

A subtract statement is an example of a(n) instruction Select one: O a. input/output O b. Boolean logic O c. arithmetic d.

A major advantage of direct mapped cache is its simplicity and ease of implementation. The main disadvantage of direct mapped
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Answer #1

1) option-b

number of bits in op-code=5

so, maximum number of output signal lines= 2^5 =32

2) option-c

A "subtract" statement is an example of arithematic instruction.

3) option-d

Disadvantage of direct mapping is that each block of main memory maps to a fixed location in the cache  therefore, if two different blocks map to the same location in cache and they are continually referenced, the two blocks will be continually swapped in and out (known as thrashing) and as result of thrashing performance will be degraded.

hope you got it!!

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