Definition
A computer is an electronic device that processes data according to a set of instructions (programs) to perform various tasks, such as calculations, data storage, communication, and multimedia operations. It consists of hardware components like the central processing unit (CPU), memory (RAM), storage (HDD/SSD), input/output devices (keyboard, mouse, monitor), and software (operating systems and applications) that enable it to execute complex functions efficiently. Computers range from personal devices like laptops and smartphones to powerful servers and supercomputers, playing a vital role in modern technology, automation, and information processing across industries.

Types of Computers
Supercomputer – Extremely powerful, used for complex calculations and scientific research.
Mainframe – Large, high-performance computers for bulk data processing in enterprises.
Server – Provides services, resources, or data to other computers over a network.
Workstation – High-end desktop for specialized tasks like graphics or engineering.
Desktop (PC) – Personal computer designed for regular use at a fixed location.
Laptop – Portable computer with a built-in screen and keyboard.
Tablet – Touchscreen-based, lightweight device for browsing and media.
Smartphone – Mobile device with computing capabilities and internet access.
Embedded Computer – Dedicated system within devices like cars, appliances, or machines.
Hybrid (2-in-1) – Combines features of laptops and tablets (e.g., detachable keyboards).