3T_LE1_CPE103

1. A temporary storage of data or instruction that is temporarily not in used.
2. An Intel processor that was used in the first PC.
5. A basic structure of microprocessor that performs data processing operations specified during the execution phase of the instruction being interrupted.
11. A flag that selects either the incrementing or decrementing mode of DI or SI.
13. A register that is responsible in tracking the address of the instructions to be executed by the microprocessor in the memory.
15. It is used as an aid in accessing data found in tables stored in the memory.
16. A flag that indicates the priority of the current task.
17. It is the first product of Microsoft that was used in Altair.
18. A flag that detects an error in the system.

1. It points to the next free address on the stack.
2. An improved version of the first Intel processor which is an 8-bit microprocessor.
3. One of the main functions of the microprocessor system that is the most used function since 95% of its time is executing this function.
4. It stores all instructions coming from the data bus.
6. A component wherein it used very small wires to connect the transistors when it was invented in 1958.
7. It is the brain of the computer system.
8. It used to synchronize the operation of the different parts of the control logic unit and the computer system.
9. It is responsible for the operation of the different parts of the microprocessor unit and the microcomputer system.
10. It changes after an arithmetic and logic operation.
12. The first to develop an IC.
14. A technique in controlling I/O devices wherein device has a unique address.