For a single computer processor computer system, what is the
purpose of a processor cache and describe its operation?
- 3 Answers
- 10841 Views
- Intel, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / 12345678
the purpose of cache is to reduce the average time to
access the main memory, the operation is like that when the
CPU wants to access the data, it first check the cache, if
an entry can be found with a tag matching that of desired
data, CPU gets the data from cache directly, otherwise, the
data will be copied into cache for next access.
| Is This Answer Correct ? | 18 Yes | 0 No |
Answer / kamal
Main memory is not compatible to the processor speed. So a
fast memory is placed b/n processor and main memory called
cache.
| Is This Answer Correct ? | 11 Yes | 1 No |
Answer / achal ubbott
Cache is a technique used to improve system's performance.
Its not an essential component. The cache memory is managed
by a cache controller. The cache system is based on the
principle of locality of reference which states that most
computer programs execute small loop of code. So the
program uses some frequent data or instruction.
Different core manufacturers use different type of
management policies for cachee.e.g. ARM use 3 policies
i. Write Policy.
2. Replacement Policy
3. Allocate policy.
But the basic principles remain almost constant.
| Is This Answer Correct ? | 9 Yes | 0 No |
Insights of an inverter. Explain the working?
What are the Advantages and disadvantages of Mealy and Moore?
What r the phenomenon which come into play when the devices are scaled to the sub-micron lengths?
What is the ideal input and output resistance of a current source?
Insights of a pass gate. Explain the working?
What are the different limitations in increasing the power supply to reduce delay?
Explain the Charge Sharing problem while sampling data from a Bus?
Write a VLSI program that implements a toll booth controller?
What happens if we delay the enabling of Clock signal?
For f = AB+CD if B is S-a-1, what are the test vectors needed to detect the fault?
Explain why is the number of gate inputs to cmos gates usually limited to four?
What is a linked list? Explain the 2 fields in a linked list?
86 Family 
