What is a basic function of a logic gate?
A Data transmission
B Logical operations
C Data storage
D Data conversion
Which gate output is high when at least one input is high?
A AND
B NAND
C OR
D NOT
Which of these is a sequential circuit?
A AND gate
B XOR gate
C OR gate
D Flip-flop
What does an arithmetic logic unit (ALU) perform?
A Arithmetic and logical operations
B Data comparison
C Data storage
D Logical operations
Which of these is an example of volatile memory?
A Flash
B ROM
C RAM
D EEPROM
What is a multiplexer used for?
A Data encoding
B Memory storage
C Data comparison
D Data selection
What does a register store?
A Code for execution
B Data temporarily
C Data permanently
D Input signals
What is a decoder used for?
A Decoding data
B Encoding data
C Storing data
D Counting pulses
Which type of memory is non-volatile?
A Cache
B Flash
C ROM
D RAM
What does a Karnaugh map help simplify?
A Memory usage
B Voltage levels
C Boolean expressions
D Data flow
What is the role of a clock signal in digital circuits?
A It converts data
B It synchronizes operations
C It stores data
D It powers the circuit
What does an encoder do in a digital circuit?
A Converts input to binary code
B Selects outputs
C Converts binary to decimal
D Stores data
Which circuit type changes its state based on inputs and previous state?
A Logic gate
B ALU
C Sequential circuit
D Combinational circuit
What is the primary function of a flip-flop?
A To add numbers
B To decode inputs
C To perform logical operations
D To store data
What is the main function of a counter in digital electronics?
A To count clock pulses
B To decode signals
C To store binary data
D To convert analog signals