A desktop computer is a personal computer (PC) in a form intended for regular use in one location, compared with a laptop mobile. Before the wide spread of a computer microprocessors that could fit on a small desk was considered remarkable. The phrase indicates today usually a particular style of the box on the computer. The desktops come in a variety of styles that range from boxes large vertical tower of the model of small form factor that can be remet behind a LCD Monitor. In this sense, 'desktop of the term 'refers specifically to a case horizontally-oriented, generally expected to have the display screen placed on top to save space on the desktop. The majority of modern desktop computers have screens and keyboards separated. A specialized form of case desktop systems used for home theater, incorporating the front panel-mounted controls for audio and video.

All-in-a computers are the office computers which combine the monitor in the same case as the central processing unit of treatment. The limit, all-in-a was at the beginning associated with all-in-a VAX with Corporation with Digital Equipment software which provided a common menu to choose: email, assessment, bases data, filing system, etc... mouse had not been popularized for PC still, thus all was led by the keyboard. Some report of mass, processor, and posting combinedearly of PC (such as the commodore FART) in a box. Original Macintosh presented in 1984 per computer APPLE (now APPLE Inc.) was one of the first complete computers, in APPLE 1998 released the iMac which was also a complete computer. These types of office computers to save the office space and are easier to install, but to be limited when it comes to the expansion to improve their possibilities.[necessary quotation]

All-in-A the PC is a PC built in the material which is usually a separated peripheral, such as a monitor or a keyboard. It is sometimes shortened bus AIO . APPLE computers Are popular examples of this, with products such as the iMac, in which the computer is built behind the monitor and original Macintosh 128k of 1984. Some computers of 8 older bits, such as the commodore FART 2001 or Kaypro II, also adapted in this category. Some, such as the integral PC of HP, even built in printer.