LE1_103

2. A basic structure of microprocessor that performs data processing operations specified during the execution phase of the instruction being interrupted.
5. It points to the next free address on the stack.
9. A main function of microprocessor that consumes most of the time.
11. A register that is responsible in tracking the address of the instructions to be executed by the microprocessor in the memory.
12. A technique in controlling I/O devices wherein device has a unique address.
14. It is responsible for the operation of the different parts of the microprocessor unit and the microcomputer system.
16. It is the brain of the computer system.
18. The first to develop an IC.

1. A flag that selects either the incrementing or decrementing mode of DI or SI.
3. A flag that indicates the priority of the current task.
4. A component wherein it used very small wires to connect the transistors when it was invented in 1958.
6. Intel microprocessor that was used in Altair.
7. He developed the first PC.
8. It stores all instructions coming from the data bus.
10. It used to synchronize the operation of the different parts of the control logic unit and the computer system.
13. A flag that detects an error in the system.
15. It changes after an arithmetic and logic operation.
17. A temporary storage of data or instruction that is temporarily not in used.
19. It is used as an aid in accessing data found in tables stored in the memory.
20. It is the first product of Microsoft that was used in Altair.