80x25

80x25 is a term used to describe the resolution of a computer display, specifically 80 characters wide by 25 lines high. This resolution was commonly used in early personal computers and text-based operating systems, such as MS-DOS and early versions of Unix. The term "80x25" refers to the number of text characters that can be displayed on the screen at one time, not the number of pixels.

The 80x25 resolution was chosen for several reasons. Firstly, it was a compromise between the need for a large display area and the limitations of early computer hardware. Secondly, it was designed to be compatible with the IBM PC, which was one of the first personal computers to use this resolution. Thirdly, it was chosen to be compatible with the ASCII character set, which was the standard for text-based systems at the time.

The 80x25 resolution was widely used in the 1980s and 1990s, particularly in business and educational settings. It was also used in early video games and other software that required a text-based interface. However, with the advent of graphical user interfaces and higher-resolution displays, the 80x25 resolution became obsolete. Today, it is largely a historical curiosity, but it remains an important part of the history of personal computing.