Computer Architecture

1. also called as primary memory
4. Computers accept coded information through this unit
8. It contains the memory address of the next instruction to be fetched and executed.
11. The number of bits in each words in the memory
13. This addressing allow instructions to be executed much more faster in comparison with other addressing modes because they does not involves with memory access

2. It holds the instruction that is currently being executed
3. is the number of tasks completed per unit time
5. The time, the CPU spends computing for the specific task and does not include time spent waiting for I/O or running other programs.
6. As an adjunct to the main memory, a smaller, faster RAM unit, called a cache is used to hold sections of a program that are currently being executed, along with any associated data
7. The total time required for the computer to complete a task
9. The data transfer instruction that copies data from memory to a register
10. Most computer operations are executed in this unit of the processor
12. also known as indirect addressing where a register act as a pointer to an operand located at the memory location whose address is in the register