We used to have a couple of Tandy 2000s they came with DeskMate a semi windows GUI, they were almost unbreakable:

I have always enoyed saving the best for last, and in this case have a real chance to savor it. I mentioned a ways back that packed into the box with MS-DOS and Basic is a disk called the Deskmate. Why is this significant? Well, simply put, once you boot this disk, you might never need another software package for your computer.

DeskMate is an integrated software package that combines word processing, spreadsheet, file management, telecommunications, calendar, and E-mail functions in a single user interface. It includes online help, a simple four-function calculator, alarms that can tie directly to day/date schedules, and a printer interface that services all functions.

Cool eh!