A computer is an electronic device that processes data to perform a wide range of tasks. It consists of hardware components like the central processing unit (CPU), memory (RAM), storage (hard drive or SSD), and input/output devices (keyboard, mouse, monitor). Computers operate using software, which includes operating systems (like Windows or macOS) and applications (such as word processors or web browsers). They can perform calculations, store and retrieve information, and execute complex algorithms. From personal laptops to supercomputers, computers are integral to modern life, enabling communication, education, entertainment, and scientific research. Their versatility and power make them indispensable tools in nearly every field.