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Across

1. a register that keeps track of the address of the next instruction to be executed in a program

2. a special-purpose register in a CPU that is used for arithmetic operations and holds the results of calculations

3. A bus in a computer architecture that is used by the CPU to communicate with other hardware components and control their operations.

4. A bus in a computer architecture that is used to specify the memory address in read or write operations.

5. The process of transferring data between the computer and external devices, such as keyboards, monitors, and printers.

6. A computer architecture where where programs and data are stored in the same memory and can be executed sequentially by the CPU

7. a register that holds the currently executed instruction in a CPU

8. The primary component of a computer that performs most of the processing inside the computer, including performing arithmetic, logical, control, and input/output operations.

9. The process of carrying out the operation specified by an instruction using the data from registers and memory.

10. A computer that stores program instructions in its memory along with data, allowing the instructions to be treated as data and executed by the CPU.

11. The process of determining the exact operation to be performed and the operands of a given instruction.

12. The process of retrieving a program instruction from memory so that it can be executed by the CPU.

Down

13. a register that holds the address of a memory location currently being accessed by the CPU

14. The component of a CPU that manages the execution of instructions, coordinates the activities of the other components, and controls the flow of data within the CPU.

15. a register that stores data being transferred to and from the memory unit

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