Computer are machine that perform tasks or calculations according to a set of instruction or program. The first fully according to set of instruction or program. The first fully electronic computers, introduction in the 1940s. were huge machines that require teams of people to operate. compared to those early machines, today's computers are amazing. Not only they are thousands times faster, they can fit on your desk, on your lap or even in your pocket.
Computers work through an interaction of hardware and software. Hardware refers to the parts of computer that you can see and touch, including the case and everything inside it. The most important piece of hardware is a tiny rectangular chip inside your computer called the Central Processing Unit (CPU) or microprocessor. It's the "brain" of computer-the part that translates instructions and performs calculations. Hardware items such as monitor, keyboard, mouse, printer and other items are often called hardware devices.
Software refers to the instructions or programs, that tell the hardware what to do. A word processing program that you can use to write letters on computer is a type of software. The Operating System (OS) is a software that manages your computer and the devices connected to it. Two well-known operating system are windows and Macintosh operating system. Your computer uses the Windows Operating system.
Computers work through an interaction of hardware and software. Hardware refers to the parts of computer that you can see and touch, including the case and everything inside it. The most important piece of hardware is a tiny rectangular chip inside your computer called the Central Processing Unit (CPU) or microprocessor. It's the "brain" of computer-the part that translates instructions and performs calculations. Hardware items such as monitor, keyboard, mouse, printer and other items are often called hardware devices.
Software refers to the instructions or programs, that tell the hardware what to do. A word processing program that you can use to write letters on computer is a type of software. The Operating System (OS) is a software that manages your computer and the devices connected to it. Two well-known operating system are windows and Macintosh operating system. Your computer uses the Windows Operating system.
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