Computer Systems and the CPU

2. A comparison such as AND, OR, or NOT.
4. The number of cycles the CPU can perform per second.
5. Holds the address of the memory location being accessed.
8. Carries control signals that coordinate operations within the computer.
9. A computer design where data and instructions share the same memory space.
11. The part of an instruction that tells the CPU what action to carry out.
14. Carries memory addresses between the CPU and main memory.
16. A sequence of instructions executed by the computer.
17. The stage where the CPU retrieves the next instruction from memory.
18. The data or memory address that the operator works on.
21. A program designed to perform a specific task for a user.
22. The central processing unit that processes instructions and controls the computer’s operations.
23. A unit of data made up of 8 bits.

1. Holds data that is being read from or written to memory.
3. A single command given to the CPU to perform a task.
6. Data entered into a computer system.
7. The stage where the CPU carries out the instruction.
10. The stage where the CPU interprets what an instruction means.
12. Information produced by a computer system after processing.
13. Immediate Access Store; memory that holds instructions and data ready to be processed by the CPU.
15. A small, very fast memory location inside the CPU used to hold data and instructions.
19. Transfers data between components of the computer system.
20. A numbered space in memory that stores a byte of data.