1) Order the following components in order of their speed starting from the fastest, and ending with the slowest: CD, Random Access Memory (RAM), Tape, Cache.

2) A computer system may have an extremely fast process, and extremely fast memory, yet the performance of the computer may be slow. Why?

thank you for your time!

Hints:

1. Cache is the fastest memory (aside from registers, which is not on the list).
2. By what data go from memory to the CPU and vice-versa? Does a human have access directly to the memory?