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Question
Since microprocessor CPUs do not understand mnemonics as they are, they have to be converted into __________.
Options
A. hexadecimal machine code
B. high-level language
C. assembly language
D. hexadecimal machine code and assembly language
Correct Answer
hexadecimal machine code
Computer Hardware and Software problems
Search Results
1. A register in the microprocessor that keeps track of the answer or results of any arithmetic or logic operation is the _________.
Options
A. stack pointer
B. program counter
C. instruction pointer
D. accumulator
Show Answer
Scratch Pad
Discuss
Correct Answer: accumulator
2. The register in the 8085 microprocessor that is used to keep track of the memory address of the next opcode to be run in the program is the ________.
Options
A. stack pointer
B. program counter
C. instruction pointer
D. accumulator
Show Answer
Scratch Pad
Discuss
Correct Answer: program counter
3. The control bus and memories share a bidirectional bus in a typical microprocessor system.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
4. To keep the number of IC pins to a minimum, the 8085 uses a multiplexed bus.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
5. It takes two memory locations (16 bits each) to store an address in the 8085 system.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
6. The first part of a machine language instruction that specifies the operation to be performed is called a(n) __________.
Options
A. mnemonic
B. opcode
C. interrupt
D. instruction cycle
Show Answer
Scratch Pad
Discuss
Correct Answer: opcode
7. The __________ program is used to convert mnemonic code to machine code.
Options
A. debug
B. C++
C. fortran
D. assembler
Show Answer
Scratch Pad
Discuss
Correct Answer: assembler
8. The circuits in the 8085 that provide the arithmetic and logic functions are called the __________.
Options
A. CPU
B. ALU
C. I/O
D. bus decoder
Show Answer
Scratch Pad
Discuss
Correct Answer: ALU
9. A(n) ________________ is the time it takes a microprocessor to fetch and execute a complete instruction.
Options
A. instruction cycle
B. machine cycle
C. timing cycle
D. write cycle
Show Answer
Scratch Pad
Discuss
Correct Answer: instruction cycle
10. All computer programs for a machine are called ________.
Options
A. software
B. firmware
C. hardware
D. none of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: software
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