ALU stands for Arithmetic Logic Unit. It is a fundamental part of a computer's Central Processing Unit (CPU) that carries out arithmetic operations (like addition, subtraction) and logic operations (like AND, OR, NOT) on the operands in computer instruction words.

Optical fibers support very high bandwidths, typically in the gigahertz range.

One gigabyte is equal to 1024 megabytes.

The Arithmetic Logic Unit (ALU) performs arithmetic and logic operations.

Rambus (RDRAM) provides the highest performance for Pentium 4 when compared to other RAM types.

RAM (Random Access Memory) is a volatile memory that temporarily stores data and instructions needed for processing; its contents are lost when the computer is turned off[1](https://www.crucial.com/articles/about-memory/what-is-the-difference-between-ram-and-rom)[2](https://www.hp.com/us-en/shop/tech-takes/ram-vs-rom)[3](https://testbook.com/question-answer/what-type-of-memory-is-used-to-store-data-temporar--68678d92917e6fec187b4fe7)[4](https://www.purestorage.com/au/knowledge/what-is-computer-memory.html)[5](https://www.geeksforgeeks.org/computer-science-fundamentals/computer-memory/).

Personal computers generally use single-chip CPUs, unlike parallel or supercomputers.

An input device's primary role is to act as a bridge between the user and the computer. It takes real-world actions or information (like a key press, mouse movement, or scanned image) and converts it into digital signals that the computer's processor can understand and process.

USB is the industry standard for connecting peripherals and transferring data.

Optical mark readers detect marked responses on answer sheets.