May test sscsa

The average time required to reach a storage location in memory and obtain its contents is called the

• a) seek time

• b) turnaround time

• c) access time

• d) transfer time

Which of the following is not a weighted code?

• a) Decimal Number system

• b) Excess 3-code

• c) Alphanumeric Codes

• d) Error Detecting Codes

The idea of cache memory is based

• a) on the property of locality of reference

• b) on the heuristic 90-10 rule

• c) on the fact that references generally tend to cluster

• d) all of the above

The addressing mode used in an instruction of the form ADD X Y, is

• a) Absolute

• b) indirect

• c) index

• d) None of the above

If memory access takes 20 ns with cache and 110 ns with out it, then the ratio (cache uses a 10 ns memory) is

• a) 85%

• b) 90%

• c) 95%

• d) 100%

The memory management scheme that supports the user view of memory

• a) Paging

• c) Segmentation

• c) Aggregation

• d)Abstraction

Before finalizing the instruction set for a computer, computer architeets need to consider

• a) flexibility to programmer

• b) number of addressing modes

• c) system performance

• (d) All of the above

Which unit is responsible for converting the data received from the user into computer understandable format?

• a) Memory Unit

• b) Arithmetic & Logic Unit

• c) Input Unit

• d) Output Unit

The smallest unit of data in computer is ________________

• a) Byte

• b) Nibble

• c) Bit

• d) KB

One nibble is equivalent to how many bits?

• a) 2

• b) 4

• c) 8

• d) 1