3.3 all exam questions

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The document discusses three different computer architectures: parallel processors, array processors, and RISC. Parallel processors use multiple processors that are controlled by an operating system to work on different tasks within the same job simultaneously. Array processors are able to perform the same calculation on a range of memory locations at the same time, making them very fast. RISC architectures have a limited number of simple instructions available stored in a small number of bits, but can perform complex instructions through multiple cycles of simple instructions using one or more register sets.

JUNE 2012 Question 3

a) Parallel processor
1. Uses multiple processors
2. Controlled by a complex OS
3. To work on different tasks within the same job
4. at the same time
5. Each processor gets a different task

b) Array Processor
1. An array processor is able to do the same calculation on
2. a range of memory locations simultaneously
3. As it is performing lots of calculations at the same time it is very fast

c) RISC
1. Limited number of simple instructions available
2. Number of bits required to store the whole instruction set is small.
3. Can perform more complex instructions by executing several cycles of simple
instructions
4. Uses one or more register sets

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