it is defined by access time and cycle time
The time required by a processor to access data or to write data from and to memory chip is referred as access time.
The time required by a processor to access data or to write data from and to memory chip is referred as access time.
Because of different in speeds of cpu the system bus and the memory circut
memory access time.
cache memory
access times from memory is 200,000 times faster than access times from storage devices due to the mechanical movement involved.
access times from memory is 200,000 times faster than access times from storage devices due to the mechanical movement involved.
Register to register addressing mode is faster because you don't have to do an extra memory access cycle or more.Register to register addressing mode is faster because:Registers are part of and are directly accessibility by the CPU assembly.They electronics that make up a register use more expensive but faster circuitry.Since it does not require memory access, the steps and time involved in memory address decoding and memory access are skipped.
Memory device operating speed is measured in cycle time which is the amount of time required for memory to perform read and write operation and return to its original state ready for next operaiton. Access time is another measure of memory speed which is only the time required for read operation or it is the time between data receiving (read operation) and the data becoming available at the memory output.
Faster access time, greater cost per bit; greater capacity, smaller cost per bit; greater capacity, slower access time. As a general rule (but there are exceptions) the greater the capacity of a memory the longer the access time. For a higher cost the access time of a given capacity memory can usually be shortened some. As a general rule (but there are exceptions) the greater the capacity of a memory the total memory cost increases, but the memory cost per bit decreases.
Drum.