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Across 1. Splits memory across multiple memory modules 5. Used to determine which device should be in control 9. Executing a specific routine to process an interrupt 11. Directs the computer to another part of the program based on the results of a compare 17. A device, or part of one, directly controlled by another 18. Provides the transfer of information from inputs to output equipment 21. A machine or device directly controlling another 22. A bus connecting two specific components in a system 23. Steps a CPU or other digital circuit through its paces 28. MAR; Holds the memory address of the data being referenced 29. The number of oscillations (vibrations) in one second 31. The instruction cycle a computer follows to execute a program 33. Controls execution of instructions , movement of data, and timing 34. Used to improve computer performance that pushes the bounds of system components

Down 2. ISA; Specifies the instructions that the computer can perform and the format for each instruction 3. A network of registers and the connections between them 4. Alters the normal fetch-decode-execute cycle of execution in the system 6. A shared group of wires that transmit from one part of a computer to another 7. Stores binary data 8. Operation code; Specifies the operation to be executed 10. PC; Holds the address of the next instruction to be executed 12. The results of arithmetical and logical operations are formed 13. Transfers data between computer components 14. IR; Holds the next instruction to be executed 15. A set of usage rules governing how buses are used 16. Where are unit of data may be retrieved or stored 19. Provides the transfer of information from inputs to the central computer 20. MBR; Holds the data read or written to memory 24. Clock period; The reciprocal of the clock frequency 25. Translate symbolic language 26. The portion of a bus that transfers the actual data 27. Specifies what data is to be manipulated/operated on 30. Arithmetic and Logic Unit 32. Central Processing Unit; the key component of a computer system