08023429251 || 2024 NABTEB GCE Computer Craft Studies Questions And Answers
NABTEB COMPUTER CRAFT ANSWERS
ANSWER FIVE QUESTIONS ONLY
(1a)
The Central Processing Unit (CPU) is the primary component of a computer responsible for executing instructions and performing calculations. It acts as the brain of the computer, interpreting and executing commands from programs and the operating system.
(1b)
(i) Arithmetic Logic Unit (ALU): The ALU performs mathematical calculations and logical operations. It is essential for decision-making processes in computations.
(ii) Control Unit (CU): The CU manages and coordinates the activities of the CPU. It interprets instructions from programs, directs data flow between the CPU and memory, and oversees input/output operations.
(iii) Registers: Registers are small, high-speed storage locations within the CPU that temporarily hold data, instructions, or intermediate results. They provide immediate access to frequently used information.
(iv) Cache Memory: This is a small, high-speed memory inside the CPU that stores frequently