I will never forget that video RAM started at location 61440 on the Osborne 1. I should forget, but I won't. Googling that number reveals various BASIC source

I will never forget that video RAM started at location 61440 on the Osborne 1. I should forget, but I won't. Googling that number reveals various BASIC sources--where's the Osborne 1 emulator? Here's one more difference: the Osborne 1 was AWESOME. ;-)