CMP 130 -- Sections 5.1 and 5.2 RQ

What does the central processor do?

• It functions as high-speed storage for the computer.

• It sends out electrical pulses according to a clock.

• It is the main storage device for the computer.

Which of these is a common name for the computer’s secondary storage device?

• cache

• hard disk drive (or hard drive)

• GPU

The prefix giga- is short for:

What does the control unit do?

• sends data to the memory unit

• computes logic gates like AND and OR

• ensures all other components act in concert with one another

The second step in the fetch-execute cycle is:

• decoding the instruction.

• copying the instruction.

• sending the instruction to the CPU.

The difference between RAM and ROM is that

• ROM memory can be read only once, while RAM can be read any number of times.

• ROM memory can only be read from and not written to, while RAM can be both read from and written to.

• ROM memory is the memory from secondary storage devices like magnetic tapes, while RAM is part of the internal computer memory.