1. Explain the difference between aa microprocessor and a microcomputer. 2. What is a bus? 3. Define I/O. 4. Define port. 5. 6. What is a program? 7. A byte consists of 8. A word consists of is the operation that the computer is told to perform. bits. bits. 9. A nibble consists of bits. 10. What is the largest number that can be represented by an 8-bit computer word? By a 16- bit word? LDAA #8 ADDA #17 ADDA #4 SWI 11. Define Arithmetic Logic Unit. 12. The numbers that are operated upon by the computer are called 13. Where are the two operands held as they are transferred to the ALU? 14. Where is the result held after an arithmetic operation? 15. Which register in the MPU holds the instruction while the opcode is being decoded? 16. Which register in the MPU determines the memory location from which the next byte of information is taken? 17. Which register holds the address while it is being decoded? 18. How many memory locations can be specified by 8-bit and 16-bit address? 19. Explain the 4-step procedure for writing the number $25 into memory location $12. 20. Explain the 3-step procedure for reading the content of memory location $34, which is $23. 21. Define mnemonic. 22. Define opcode. 23. Define RAM, 24. Define ROM. 25. An instruction is retrieved form memory and decoded during the 26. The operation indicted by the instruction is carried out during the 27. Examine the following program carefully and answer the questions below: phase. phase. a. During the first fetch phase, what binary number is loaded into the data register? b. During the first execute phase the number 0000 1000 is loaded into the c. During the second fetch phase, what binary number is loaded into the data register? d. If the first byte of program is placed in address 0000 0000, what is the address of the first and second ADD instruction? e. How many bytes of memory is taken by this program? f. What number is in the accumulator during the third fetch phase? g. When the program finished execution, what number is in the accumulator? h. What are the final content of the address register?