billionths
disk cache
A cache is a collection of items of the same type stored in a hidden or inaccessible place, for future use. A computer has a memory cache that quickly accesses programs on the computer.
A CPU does math and accesses memory.
NO...The cache is a smaller, faster memory which stores copies of the data from the most frequently used main memory locations. As long as most memory accesses are cached memory locations, the average latency of memory accesses will be closer to the cache latency than to the latency of main memory.Thus Cache memory is not main memory of computer system.--- form Wiki
Memory accesses impact the performance of a computer system by affecting the speed at which data can be retrieved and processed. Efficient memory access can lead to faster execution of programs, while inefficient memory access can result in delays and decreased overall performance.
RAM stands for RANDOM ACCESSES MEMORY
The memory that the computer processor accesses directly is primary memory. It is wired directly to the processor. RAM is primary memory on a computer.
Single-sided memory has memory chips on only one side of the module, while double-sided memory has memory chips on both sides. Double-sided memory typically has a higher memory capacity than single-sided memory due to more chips being present.
Memory usually consists of one or more chips of bytes.
Flash memory consists of nonvolatile memory chips that can be used for storage by the computer or the user. Flash memory was introduced in 1984.
dual ranked dimm. This is incorrect! Single-ranked DIMMs cost more but perform better because the controller accesses all chips at the same time. Dual and quad ranks are a method of reducing the overall price of memory in a system, but at the expense of performance.