#: 6476 S12/OS9/68000 (OSK)
    03-Sep-90  08:27:37
Sb: #PT68-K4
Fm: Jack Crenshaw 72325,1327
To: Kevin Darling 76703,4227 (X)

Hi, Kevin.  Just thot I'd let you know: I finally got around to getting the
latest of PT's offerings, which is the K4.  It's basically a -K2 with more RAM
(0.5 .. 4Meg, expandable to 16Meg), and with all the things fixed that I didn't
like about the -K2, viz.:

(1) It now has proper vectored interrupts, getting rid of that crazy INT 5
arrangement

(2) It has a four-layer board, so runs reliably at 16MHz (so far)

There are a few other nice improvements:  4 serial ports standard instead of 2,
NEC 765 + 1772 controller (apparently, the 1772 can't read some PC disks), etc.

I also got OS-9 with it.  Awhile back, the situation was that OS-9 only worked
with a separate terminal, but not with the PC keyboard and Herc card. That's
been fixed, and now it seems to use the Herc CRT very nicely.

Now all I have to do is to (a) figure out how to persuade SK*DOS, OS-9, and
Minix to coexist on my 40Meg HD, and (b) learn how to use OS-9.

Best, Jack



There is 1 Reply.