J277 Paper 1 Recap

What is the main purpose of the CPU?

• To store data permanently

• To fetch, decode and execute instructions

• To connect to the internet

• To provide power to the computer

Which of the following is a component of the CPU?

• Hard Drive

• Control Unit

• Monitor

• Keyboard

What is the function of the Control Unit in the CPU?

• To store data permanently

• To perform arithmetic operations

• To send signals to control the flow of data and decode instructions

• To connect to external devices

What does the Memory Address Register (MAR) do?

• Stores data permanently

• Tells the CPU where to locate data in Main Memory

• Performs arithmetic operations

• Connects to the internet

What is the role of the Program Counter (PC) in the CPU?

• To store data permanently

• To keep the address of the next instruction to be processed

• To perform logical operations

• To manage power supply

What is an example of an embedded system?

• Desktop Computer

• Washing Machine

• Laptop

• Server

What is the F-D-E Cycle in the CPU?

• A cycle for storing data

• A cycle for processing instructions

• A cycle for connecting to the internet

• A cycle for managing power

What is the main purpose of RAM in a computer system?

• To store the boot sequence

• To store data and programs while they are in use

• To store data permanently

• To store backup files

Which of the following is a characteristic of ROM?

• Volatile

• Non-volatile

• Used for temporary storage

• Requires constant power

What is an advantage of increasing RAM in a computer?

• Slower processing speed

• More need for virtual memory

• Faster computer speed

• Increased power consumption