DOSBox for Google Chrome
Want to use legacy DOS software on a Chromebook? Version 0.74 of DOSBox for Google Chrome emulates x86 operations.
As a result, you can play with a bunch of old DOS games and business applications, from Word 5.5 for DOS or WordStar 3.3 to Borland's Turbo C. You'll need to download, email or put the program on a USB drive to install it, but it's worth the effort.
I loaded PictView 1.94 and had no problem using it -- a blast from the past. While DOSBox doesn't work with every program, the company has put together a compatibility list.
Keep in mind, however, that you may need to learn (or relearn) the syntax of DOS with DIR and CD commands; luckily, DOSBox has built-in help.