A
guy I was in school with was typing in the code for a game and after
spending ages at it, his kid brother pulled the plug on the computer
before he had it saved to cassette. I don't even think of saving work
now until I'm completely finished, although I should, in case there's a
glitch. When a laptop is put to sleep, everything resumes when it's
woken up again. And we have undo buttons in applications for reversing
anything we've done. Many applications that ran on MSDOS, before
Windows, didn't have an undo button. So if you were typing a document or
drawing something, you had to save to file before you made any major
changes so you could reload and get back to a version before the change.
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