Computer

A computer is an electronic device that can perform various tasks through pre-programmed instructions.

The basic components of a computer include a Central Processing Unit (CPU), memory, storage devices, input devices, and output devices.

Software refers to a collection of programs, data, and instructions that tell a computer how to perform specific tasks.

Hardware refers to the physical components of a computer system, such as the motherboard, processor, memory modules, hard drives, etc.

The different types of software include system software (e.g., operating systems), application software (e.g., word processors), and utility software (e.g., antivirus programs).

An operating system manages computer hardware and software resources. It provides services for executing applications and acts as an intermediary between the user and the hardware components.

RAM (Random Access Memory) is volatile memory used for temporary data storage, while ROM (Read-Only Memory) is non-volatile memory that stores permanent instructions needed during booting.

Input devices allow users to provide data to a computer, such as keyboards and mice. Output devices display or provide data processed by the computer, such as monitors and printers.

A computer network is a collection of interconnected devices that can communicate and share resources with each other.

A firewall is a security system that monitors incoming and outgoing network traffic, allowing or blocking specific connections based on predefined security rules.