If you used a computer at school during the 1980s or early 1990s, there’s likely a handful of software titles that you can still recognize today, such as The Oregon Trail, Where in the World is Carmen Sandiego?, and Mavis Beacon Teaches Typing. The companies behind these iconic programs once competed in a market that featured dozens of small firms jockeying for sales at a time when personal computers were still a relatively new concept for most consumers. And as the PC slowly became a mass-market consumer electronics product in the 1990s, the software industry started to undergo its own rapid consolidation and contraction.