Ah, the days of DOS. It was a bit of a dark age compared to the enlightened Windows era, but if you think the days of DOS are dead, think again. Perhaps you've heard of a little HBO Original called Game of Thrones. The highly popular drama series is an adaptation of A Song of Ice and Fire, a series of epic fantasy novels written by George R. R. Martin. He began writing the series in 1991 using an offline DOS machine, and remarkably, he still uses it today.