ZSoft Corporation, founded by Mark Zachmann, was a Marietta, Georgia

Marietta, Georgia

Marietta is a city located in central Cobb County, Georgia, United States, and is its county seat.As of the 2010 census, the city had a total population of 56,579, making it one of metro Atlanta's largest suburbs...

 software company in the 1980s known for the PC Paintbrush

PC Paintbrush

PC Paintbrush was graphics editing software created by the ZSoft Corporation in 1985 for computers running the MS-DOS operating system....

 software and its PCX

PCX

PCX is an image file format developed by the now-defunct ZSoft Corporation of Marietta, Georgia. It was the native file format for PC Paintbrush and became one of the first widely accepted DOS imaging standards, although it has since been succeeded by more sophisticated image formats, such as GIF,...

 graphic file format. ZSoft first merged in 1989 with Mediagenic. When Mediagenic went bankrupt in 1991, Zachmann was able to regain his independence just in time. ZSoft was bought by Wordstar

WordStar

WordStar is a word processor application, published by MicroPro International, originally written for the CP/M operating system but later ported to DOS, that enjoyed a dominant market share during the early to mid-1980s. Although Seymour I...

, which was later bought by Softkey

SoftKey

SoftKey International was a publisher and distributor of CD-ROM based personal computer software for Windows and Macintosh computers during the 1990s. Their products typically consisted of software intended for home audiences, especially compilation discs containing various freeware or shareware...

, which was later bought by The Learning Company

The Learning Company

The Learning Company is an American educational software company, founded in 1980. It produced a grade-based system similar to Knowledge Adventure's JumpStart series. The products for preschoolers through second graders feature Reader Rabbit, and software for more advanced students features The...

.