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Home ‣ Digital Electronics ‣ Boolean Algebra and Logic Simplification See What Others Are Saying!
- Question
The commutative law of addition and multiplication indicates that:
Options- A. we can group variables in an AND or in an OR any way we want
- B. an expression can be expanded by multiplying term by term just the same as in ordinary algebra
- C. the way we OR or AND two variables is unimportant because the result is the same
- D. the factoring of Boolean expressions requires the multiplication of product terms that contain like variables
- Correct Answer
- the way we OR or AND two variables is unimportant because the result is the same
- 1. What does ECL stand for?
Options- A. It stands for electron-coupled logic; all of the devices used within the gates are N-type transistors.
- B. It stands for emitter-coupled logic; all of the inputs are coupled into the device through the emitters of the input transistors.
- C. It stands for emitter-coupled logic; all of the emitters of the input transistors are connected together and each transistor functions as an emitter follower.
- D. It stands for energy-coupled logic; the input energy is amplified by the input transistors and allows the device to deliver higher output currents. Discuss
- 2. Which is not a step that should be followed in project management?
Options- A. Overall definition
- B. System documentation
- C. Synthesis and testing
- D. System integration Discuss
- 3. The control bus and memories share a bidirectional bus in a typical microprocessor system.
Options- A. True
- B. False Discuss
- 4. Which bus is bidirectional?
Options- A. Address bus
- B. Control bus
- C. Data bus
- D. None of the above Discuss
- 5. If a DAC has a full-scale, or maximum, output of 12 V and accuracy of
0.1%, then the maximum error for any output voltage is ________.
Options- A. 12 V
- B. 120 mV
- C. 12 mV
- D. 0 V Discuss
- 6. The technique of assigning a memory address to each I/O device in the computer system is called:
Options- A. memory-mapped I/O
- B. ported I/O
- C. dedicated I/O
- D. wired I/O Discuss
- 7. The register in the 8085A that is used to keep track of the memory address of the next op-code to be run in the program is the:
Options- A. stack pointer
- B. program counter
- C. instruction pointer
- D. accumulator Discuss
- 8. Single-bit indicators that may be set or cleared to show the results of logical or arithmetic operations are the:
Options- A. flags
- B. registers
- C. monitors
- D. decisions Discuss
- 9. What kind of computer program is used to convert mnemonic code to machine code?
Options- A. debug
- B. assembler
- C. C++
- D. Fortran Discuss
- 10. When referring to instruction words, a mnemonic is:
Options- A. a short abbreviation for the operand address
- B. a short abbreviation for the operation to be performed
- C. a short abbreviation for the data word stored at the operand address
- D. shorthand for machine language Discuss
More questions
Correct Answer: It stands for emitter-coupled logic; all of the emitters of the input transistors are connected together and each transistor functions as an emitter follower.
Correct Answer: System documentation
Correct Answer: False
Correct Answer: Data bus
Correct Answer: 12 mV
Correct Answer: memory-mapped I/O
Correct Answer: program counter
Correct Answer: flags
Correct Answer: assembler
Correct Answer: a short abbreviation for the operation to be performed
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