Ascend Archive
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Re: (ASCEND) win98 increased time to login (fwd)
> >- if the win9x computer has ISDN or dual ISDN then sw compression is
> >*very* useful
> >
> >Otherwise the sw compression is not necessary: modems do compression
> >themselves, and it doesn't work with NT.
> >
> >We have it on, and it doesn't cause any trouble for us.
>
> Why is SW compression useful with ISDN, when the TA can do STAC compression
> itself?
Because
( technical reasons )
- dual channel ISDN exceeds normal PC UART speed even without STAC
- single channel ISDN + STAC easily exceeds normal PC UART speed
( this means that the TA STAC is useless, unless you buy a special
serial board, which has about the same price tag as an ISDN card )
- a Pentium 60 can decompress and receive DUAL channel ISDN ftp
stream at 20% processor load, using PASSIVE teles ISDN card and win95.
( the STAC coprocessor is not needed for performance in a normal PC )
- using sync ISDN with async emulation is unnecessary
( economical reasons )
- TAs have ridiculous prices, you can buy 10 ISDN cards with same money
The only good reason to buy a TA is a computer that cannot have ISDN,
but has fast and good serial ports.
VesA
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