What does a NOT gate do to its input?
A Divides
B Adds
C Inverts
D Multiplies
What is the main function of a flip-flop?
A Store data
B Generate clock signals
C Perform addition
D Route signals
Which gate has the property of outputting 1 when all inputs are 1?
A OR
B XOR
C NOT
D AND
What type of memory is volatile?
A EEPROM
B ROM
C RAM
D Flash
What is the purpose of a multiplexer (MUX)?
A To perform arithmetic operations
B To store data
C To select inputs
D To decode signals
What does an encoder do in digital circuits?
A Converts inputs to binary
B Inverts inputs
C Selects outputs
D Stores data
Which of these is a sequential circuit?
A Multiplexer
B Flip-flop
C XOR gate
D AND gate
What is the function of a decoder?
A Converts inputs to outputs
B Stores data
C Converts binary to decimal
D Decodes binary signals
What is the key characteristic of a combinational circuit?
A Depends on previous states
B Has a clock signal
C Produces output based only on current inputs
D Has memory
What is the purpose of a counter in digital electronics?
A To count clock pulses
B To decode signals
C To store data
D To convert data
Which of the following is a non-volatile memory?
A Cache
B Flash
C ROM
D RAM
What does a finite state machine (FSM) represent?
A Memory storage
B Signal encoding
C A sequence of operations
D Logical functions
What is the function of a timing diagram in digital systems?
A To perform logic operations
B To represent data flow
C To store memory
D To show changes in state over time
Which gate outputs 1 when inputs are different?
A NOR
B XOR
C OR
D AND
Which of these is used to simplify Boolean expressions?
A Karnaugh map
B Encoder
C Flip-flop
D ALU