Digital Electronics and Microprocessors Flashcards
7 cards from real AET practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Digital Electronics and Microprocessors flashcards as text
What is the decimal equivalent of the binary number 1010?
Answer: 10
Binary 1010 equals (1×8) + (0×4) + (1×2) + (0×1) = 10 in decimal.
Which logic gate produces a HIGH output only when ALL inputs are HIGH?
Answer: AND gate
An AND gate outputs HIGH only when every input is HIGH; any LOW input forces the output LOW.
How many bits are contained in one byte?
Answer: 8
By definition, one byte consists of 8 bits, allowing values from 0 to 255.
Which type of memory retains its stored data when electrical power is removed?
Answer: ROM
ROM (Read-Only Memory) is non-volatile and retains data without power, unlike volatile RAM types.
Which flip-flop has a single input that toggles the output state on each active clock edge?
Answer: T flip-flop
The T (Toggle) flip-flop changes its output on every active clock edge when the T input is HIGH.
What is the hexadecimal equivalent of the decimal number 255?
Answer: FF
Decimal 255 equals (15×16) + 15, which is represented as FF in hexadecimal.
Within a microprocessor, which unit is responsible for performing arithmetic and logic operations?
Answer: ALU (Arithmetic Logic Unit)
The ALU executes all arithmetic (addition, subtraction) and logical (AND, OR, NOT) operations in a microprocessor.