Trivia Questions On Central Processing Unit! Quiz

The CPU speed is largely dependent on three factors: wordlength, cache memory, and clock speed. Wordlength refers to the number of bits that can be processed by the CPU in a single instruction, with a larger wordlength allowing for more data to be processed at once. Cache memory is a small, fast memory that stores frequently accessed data, reducing the need to fetch data from slower main memory. Lastly, clock speed determines how many instructions the CPU can execute per second, with a higher clock speed resulting in faster processing. Therefore, all three factors contribute to the overall speed of the CPU.

Remember that address space refers to the maximum number of locations in memory the CPU can access.

The control unit is responsible for coordinating and controlling all the activities within the CPU. It manages the flow of data between the CPU and other components, such as memory and input/output devices. Additionally, it is responsible for fetching instructions from memory, decoding them, and executing them. Therefore, the correct answer states that the control unit is a section of the CPU that handles data transfer and instruction execution.

The correct answer is "All of the above." The explanation is that all the options listed - Accumulator, Program Counter, Instruction Register, and Shift Register - are examples of registers. A register is a small amount of fast memory that is built into the CPU (Central Processing Unit) and is used to store data temporarily during processing. These registers play a crucial role in the execution of instructions and the overall functioning of a computer system. Therefore, all the options mentioned in the question are registers.

The wordlength of a CPU refers to the number of bits it can process, send and receive at a go, as well as the number of bits on its databus. Therefore, all the given options accurately describe the wordlength of a CPU.

The Program Counter in the Fetch-Execute cycle is responsible for holding the address of the next instruction to be executed. It acts as a pointer to the memory location where the next instruction is stored. By holding the address, the Program Counter allows the processor to fetch the instruction from memory and execute it in the next step of the cycle.

A CPU register is a temporary storage location where data is stored temporarily during the execution of a program. It is a small, high-speed memory unit located within the CPU. Registers are used to hold instructions, data, and addresses that are frequently accessed by the CPU. They provide fast access to data, which helps in improving the overall performance of the CPU. Registers are an essential component of the CPU architecture and play a crucial role in the execution of instructions.

'processor' has 9 letters. Each letter requires 1 byte (8 bits).
Hence bits needed: 9 x 8 = 72
72/32 = 2 remainder 8 bits.
Hence 3 words (becase 2 are not enough)

The statement "both of the above are true" means that both options mentioned in the question are correct. The databus is indeed a bus that connects the CPU and main memory, allowing them to exchange data. Additionally, it is a two-way bus, meaning that data can be transferred in both directions between the CPU and main memory.

The address bus determines the number of memory locations that can be directly accessed by the CPU. This is because the address bus carries the memory addresses, which specify the location of data in the main memory. Therefore, the CPU can only directly access the memory locations that are within the range defined by the width of the address bus.