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Questions and Answers
What is the decimal equivalent of the octal number 746?
What is the decimal equivalent of the octal number 746?
- 486
- 494 (correct)
- 478
- 511
Which of the following best defines the purpose of a parity bit?
Which of the following best defines the purpose of a parity bit?
- To improve data transfer speed
- To error-check data by indicating odd or even parity (correct)
- To convert data from analog to digital
- To compress data for storage
What is a primary benefit of using K-maps in digital electronics?
What is a primary benefit of using K-maps in digital electronics?
- They simplify complex digital circuits (correct)
- They eliminate the need for Boolean algebra
- They allow for real-time digital circuit monitoring
- They can only be used with binary numbers
What distinguishes edge triggering from level clocking in digital circuits?
What distinguishes edge triggering from level clocking in digital circuits?
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Which of the following is NOT a common application of decoders?
Which of the following is NOT a common application of decoders?
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What distinguishes a JK flip-flop from an SR flip-flop?
What distinguishes a JK flip-flop from an SR flip-flop?
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What primary function does a 4-bit shift left register perform?
What primary function does a 4-bit shift left register perform?
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Which of the following correctly characterizes Boolean algebra?
Which of the following correctly characterizes Boolean algebra?
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Study Notes
Number Systems
- Convert numbers from one base to another, for example, octal to decimal.
- Use alphanumeric codes like ASCII or EBCDIC to represent characters.
Logic Gates
- Understanding basic logic gates such as AND, OR, NOT, XOR, NAND, and NOR.
- Recognize their symbols, truth tables, and Boolean expressions.
Boolean Algebra
- Remember the postulates: Commutative, Associative, Distributive, Identity, Complement, De Morgan's Laws.
Logic Families
- Classify different logic families based on characteristics.
Flip-Flops
- Explain how edge-triggered flip-flops like JK FF work with truth tables and diagrams.
- Understand how SR flip-flops operate.
Counters
- Be familiar with the structure and logic of counters.
- Know how to modify counters to count both up and down.
- Recognize the features and operation of shift registers.
Registers
- Classify registers based on how data is input and output.
Decoders and Multiplexers
- Identify the applications of decoders, for instance, selecting memory locations.
- Understand the uses of multiplexers, such as data selection and data routing.
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