Lucky Professional
What is a computer?
A computer is an electronic device that can be programmed, accepts data (input), processes it using a set of instructions, stores it, and gives information as the output. It is also an electronic device that performs calculations based on a set of instructions. The first computers were huge, room-sized machines that took teams of people to build, manage, and maintain, but the computer systems of today are extremely faster.
What is a computer system?
A computer system is a complete computer that comprises a collection of hardware, software and liveware; that are designed to receive, process, manage and present information in a meaningful format.
Therefore, a computer system consists of hardware, software components and liveware. Hardware is the physical equipment that includes the case, keyboard, monitor, cables, storage drives, speakers, and printers. Software includes the operating system and programs. The operating system manages computer operations such as identifying, accessing, and processing information while programs or applications perform different functions. Programs vary widely depending on the type of information that is accessed or generated. Liveware is the computer user that commands the computer system to execute instructions.