| foodman123@gmail.com 2005-04-01, 3:55 pm |
| > Actually, if I use, say, a COPY utility, then the file is still
> readable by the Cobol program. Or even if I tar or zip and untar or
> unzip then the file is readable.
I'm sorry you don't get the point. The point is that if you back up the
file with a COBOL program, then you know for sure that it is OK.
The utility will merely backup the file even if it is damaged .
> You can easily imagine a situation where due to some glitch or other
> a data file had some of its sectors overwritten.
> No, I can't image such a situation. I may imagine that may have
> happened with MS-DOS a couple of decades ago on floppy disks, but
such
> things haven't been seen with modern systems.
Well, then you lead a charmed life. From time to time over the past
few
years, I have encountered source files which had been partly
overwritten.
This has happened to me with XP which, is I think, a modern system.
Am I the only person in the world to suffer this, I think not.
Tony Dilworth
|