J276 1.1 System Architecture

What is the purpose of the CPU? (choose 2)

• to control the computer system hardware and software
• to fetch and execute program instructions stored in memory
• to store the instructions and data files that are currently running
• to carry out POST test (power on self test)
• To store the bootstrapper program

What is meant by a 2.2 GHz CPU? (choose 2)

• the CPU has a clock speed of 2.2GHz
• It can complete 2.2 billion processing cycles per second
• It is the data transmission speed of the buses
• It is the network bandwidth for the CPU
• It is number of bits processed by the CPU

Clock speed is (choose 3)

• measured in Hz (KHz, MHz, GHz etc.)
• the size of the cache inside a processor/CPU
• the network speed for data transmission
• the number of clock cycles that can be issued by the CPU clock.
• one of many factors affecting the performance of a CPU

Which one is not a component of a CPU? (choose 3)

• Control unit
• Registers
• Arithmetic and Logic unit
• RAM
• ROM

Which one is not a component of a CPU? (choose 3)

• Control unit
• Cache
• Arithmetic Logic unit
• RAM
• ROM

What does a von Neumann computer have as the key components? (choose 4)

• a CPU
• a program counter
• memory to store data and instructions
• input and output mechanisms
• hard disk drive (HDD)

What is the function (purpose) of the control unit (CU) of a CPU? (choose 4)

• It sends out control signals to other parts of the CPU and to other parts of the computer
• It has a decoder to decode the instructions fetched from memory
• It sends the decoded instruction to other parts of the CPU to carry out.
• It uses the control signals to coordinate the actions of the computer.
• It stores the program instructions and data.

Which one of the operations is not carried out by the ALU (arithmetic logic unit)

• addition
• subtraction
• multiplication
• division
• sohpistication

Which one of the operations is not carried out by the ALU (arithmetic logic unit)

• comparison between two numbers
• subtraction
• multiplication
• division
• accumulation

Which one is not a special purpose register of a CPU? (choose 2)

• Program counter
• Memory address register
• memory data register
• cache
• ALU