Interesting observation about real vs. emulated hardware — #4

Post #4 by Charlieman

Source Forum	Interesting observation about real vs. emulated hardware — #4
Category	Software
Post Date	Tue, 22 May 2012 - 21:20
Original URL	https://68kmla.org/bb/threads/interesting-observation-about-real-vs-emulated-hardware.25436/

Post

Mac128: Either way what you are describing is a bug of the early software. I recall this happening a lot back in the day, I would stick in a disk to save which reported plenty of space to save only to find out there was not enough. Ocassionaly, the opposite would happen, the application would save the file with apparently just enough room, then when you tried to access the disk again, you could not as the disk did not have enough space to save the Finder data, because the file size was not correctly determined, the Finder essentially oversaved, and so the disk could not be read by the Finder.

The horrible disk problems that you describe are consistent with how that generation of Mac OS works. Let's say that there is 20KB free on the system disk and you wish to save something on a separate data disk. That cannot be achieved if the save operation (by the OS) needs to write 21KB or more to the system disk.

Windows does a similar thing today. When Internet Exploder downloads a file, say 1GB in size, it requires multiples of 1GB to download and save the file at its target destination.