a small computer with a microprocessor, designed for use by an individual. An example of personal computers are desktop computers used in homes, schools and small businesses.
is the collection of physical parts of a computer system. This includes the computer case, monitor, keyboard, and mouse. It also includes all the parts inside the computer case, such as the hard disk drive, motherboard, video card, and many others.
is a collection of instructions that enable the user to interact with a computer, its hardware, or perform tasks. Without software, most computers would be useless. ... The picture to the right shows a Microsoft Excel box, an example of a spreadsheet software program