On Thu, 17 Dec 1998, Hans Franke wrote:
> But it can be seen as one. Apple DOS stores files thru a block
> list, where a bit is set for every allocated block within the
> 'file address space'. So if I open a random text file and put
> a 128 Byte record into position 1000, only two blocks are written
> onto the disk. THis structure is the same for sequential written
> files - just there are no unallocated blocks.
>
> Pleas correct me if my memory regarding CBM files (or Apple files)
> has some holes - I'm about to develop a influenza right now.
I think your memory has some holes (I knew that anyway). As far as I
remember, with a random access text file, Apple DOS will write 1000 * 128
(128,000) bytes of zeroes before it lays down your 128 bytes, thereby
creating a large, mostly empty file.
Sellam Alternate e-mail: dastar_at_siconic.com
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Received on Thu Dec 17 1998 - 12:26:13 GMT