dos is a simple, two-player card game that is easy to learn and fun to play. It is a great game for families and friends to enjoy together. The goal of the game is to be the first player to get rid of all your cards. Players take turns playing cards from
From Wikipedia
DOS is a family of disk-based operating systems for IBM PC compatible computers. It primarily consists of IBM PC DOS and a rebranded version, Microsoft's MS-DOS, both of which were introduced in 1981. Later, compatible systems from other manufacturers are DR-DOS (1988), ROM-DOS (1989), PTS-DOS (1993), and FreeDOS (1994). MS-DOS dominated the IBM PC compatible market between 1981 and 1995.