COMPUTER HARDWARE COMPONENTS FUNCTIONS
COMPUTER OUTPUT DEVICES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Memory
|
|
|
Storage
|
|
|
Either A or B
|
|
|
None of the above
|
Detailed explanation-1: -A memory cache is small, fast, expensive memory placed between the very fast CPU registers and the large slow main memory. Instead of directly interfacing with the main memory, the CPU will first check whether or not a requested item is resident in the cache.
Detailed explanation-2: -(1) Memory access time is how long it takes for a character in RAM to be transferred to or from the CPU. Fast RAM chips have an access time of 10 nanoseconds (ns) or less.
Detailed explanation-3: -Static random-access memory is a type of random-access memory that uses latching circuitry to store each bit. SRAM is a volatile memory; data is lost when power is removed. Hence, Registers provide the fastest access because these memory locations are situated inside the processor.
Detailed explanation-4: -Cache memory, which also is a type of random access memory, does not need to be refreshed. It is built directly into the CPU to give the processor the fastest possible access to memory locations and provides nanosecond speed access time to frequently referenced instructions and data.