CPU Architecture

What is the purpose of the CPU?

• To store data permanently
• To fetch and execute instructions
• To connect peripherals
• To manage network connections

Which of the following is NOT a special register in the CPU?

• MAR
• RAM
• MDR
• CIR

What does the ALU in the CPU do?

• Coordinates CPU activities
• Performs arithmetic and logic operations
• Fetches instructions from memory
• Stores results temporarily

What does the Control Unit do?

• Stores instructions permanently
• Decodes and executes instructions
• Performs arithmetic operations
• Manages external devices

What is the stored-program concept?

• Programs are stored separately from data
• Programs and data are stored in the same memory
• Programs are input one at a time
• Programs are permanently stored in ROM

Which register holds the address of the next instruction?

• Accumulator
• MAR
• PC
• CIR

What is the purpose of cache memory?

• To permanently store programs
• To speed up access to frequently used data
• To connect CPU and RAM
• To manage input/output operations

What is Level 1 cache?

• Extremely fast and small memory located on the CPU
• A type of RAM used by the CPU
• The slowest type of cache memory
• A type of ROM used for booting

What is an embedded system?

• A general-purpose computer
• A microprocessor with integrated RAM and ROM
• A type of supercomputer
• A standalone operating system

Which bus carries data to and from the CPU?

• Address bus
• Data bus
• Control bus
• Memory bus