Untitled Quiz

Study Notes

A computer is an electronic device that manipulates data and can store, retrieve, and process information.
It accepts data, performs operations, displays results, and stores data or results as necessary.
Computers can be programmed to execute sequences of arithmetic and logical operations, known as computations.
Modern computers operate using programs that allow them to perform a variety of tasks.
A computer system comprises hardware, operating system, software, and peripheral equipment, and may also refer to a network of interconnected computers.

Input Unit
- Comprises input devices that convert data into binary language for computer processing.
- Common input devices include keyboard, mouse, and scanner.
- Provides data to the processor for further processing.
Central Processing Unit (CPU)
- Known as the brain of the computer, it processes input data.
- Fetches instructions from memory, interprets them, and executes the required computations.
- Main components of the CPU include:
- Arithmetic and Logic Unit (ALU)
  - Conducts mathematical operations such as addition, subtraction, multiplication, and division.
  - Makes logical comparisons between data items to determine their relationships (larger, smaller, or equal).
  - Fundamental building block of the CPU, performing essential arithmetic and logical operations.
- Control Unit
  - Directs data flow in and out of the CPU and manages operations of the ALU, memory registers, and input/output devices.
  - Ensures proper coordination of the processor's operations to complete required tasks efficiently.