WorksheetsComputer Architecture Quiz
Total questions: 14
Worksheet time: 7mins
What does the CPU stand for?
Computer Program Unit
Computer Processing Unit
Central Processing Unit
Central Program Unit
What is the function of the Memory Address Register (MAR)?
Holds the address of the instruction to be fetched next
Contains the data to be written into memory
Stores the result of the last operation
Specifies the address in memory for the next read or write
What is the purpose of the Instruction Register (IR)?
Contains the data to be written into memory
Holds the address of the next instruction
Specifies a particular I/O device
Loads the fetched instruction
What is the basic function performed by a computer?
To perform arithmetic operations
To manage I/O devices
To store data
To execute programs
What does the Program Counter (PC) do?
Contains the data to be written into memory
Specifies a particular I/O device
Holds the address of the instruction to be fetched next
Stores the result of the last operation
How many bits are in a byte?
4 bits
8 bits
16 bits
32 bits
What is the word length of general-purpose computers nowadays?
64 to 128 bits
32 to 64 bits
16 to 32 bits
8 to 16 bits
What is the purpose of the Accumulator (AC)?
To hold the result of arithmetic operations
To specify a particular I/O device
To store the address of the next instruction
To contain the data to be written into memory
What is the maximum number of different opcodes that can be represented with 4 bits?
8
32
16
24
What does the Operand Fetch (OF) step do?
Writes the result into memory
Analyzes the instruction to determine the operation
Fetches the operand from memory or I/O
Performs the operation indicated in the instruction
What is the purpose of the Data Operation (DO) step?
To perform the operation indicated in the instruction
To read the instruction from memory
To fetch the operand from memory
To write the result into memory
What is the size of 1 Megabyte (MB) in bytes?
2048 bytes
1024 bytes
1000000 bytes
1048576 bytes
What is the first step in the Instruction Cycle?
Fetch Cycle
Decode Cycle
Store Cycle
Execute Cycle
What is the purpose of the Control Unit (CU)?
To perform arithmetic operations
To interpret instructions and perform actions
To manage I/O devices
To store data temporarily
