Hi All,
We are developing a low-level code for a certain project. We boot up the
system with our own code, i.e. no DOS/Windows/Unix involved. I have been
trying to find out a documentation on various I/O ports of an IBM PC
compatible system. So far I have found some pre-historic stuff like IBM PC
Technical Reference, dated by 1983...
Specifically, I need to send and receive data over a COM port. I believe
its address is 3F8h. Which register determines baud rate, parity, etc?
Some info about the asynchronous port communication is provided in the '83
reference book, however how valid is it nowadays? Our system is quite
modern: Dell, P4, 3GHz. I thought the documentation for our chipset (865G)
should provide adequate information, but it is of no help unfortunately.
Please help!!!
Alex.

Started up the computer today and the DVD drive is missing from My Computer.

Device manager displays a yellow ! next to
Secondary IDE Controller (dual info )

Reinstalled the driver and yellow ! disappeared but DVD did nor show up.
The yellow ! reappears on every new boot up after driver reinstalled.

Installed a new DVD drive but no luck in it appearing either.

Did a SFC.exe and all appeared okay.

Ran MSD.exe and it does not show the DVD drive.

F1 at IBM logo, and going to disk drives it shows CDrom3 and gives details
as
size installed
local bus IDE mode High performance

HWinfo.exe shows the DVD drive installed at IDE2 as master which is
correct. It also displays the correct model number.

Have checked all cables for seating.
On boot up the DVD light flashes briefly and passes POST.

The Aptiva 2142, 1998 model, is the one with the DVD and Floppy in a console
under the monitor, not in the main tower.

Any ideas why the DVD drive will not show up.

I have a PS/2 Model 33 with two 8mb SIMMs in it.
The BIOS shows 15252k available memory. Could I
get more available memory by replacing one of the
8mb SIMMs with a 4mb (for exactly 16mb total to
start with and avoiding the BIOS disabling any)?

Follow-up to comp.sys.ibm.pc.hardware.misc

The world probably doesn't need another DOS IRC client, but here it is
anyway:

http://www.brutman.com/Dos_Networking/IRCjr.html

All you need to run is an 8088 class machine or better, an Ethernet card
with a packet driver, and 256KB of RAM. (You can get it to run in 192KB
fairly easily, but you will have to give up the backscroll buffer.)

I've tested it with:

- A PC XT with a 3Com 3C503
- A 386-30 with an NE2000 clone
- A PCjr with a Xircom PE3-10BT parallel port-to-Ethernet adapter

And a few other people have run it on other hardware ..

I wrote the TCP/IP stack that it uses. The IRC client is a way to get
more testing for it. :-)

Thanks,
Mike

Hallo allemaal,

I received a Commodore PC20-III but not with its original XT-IDE
harddisk but an hardcard. Unfortunately the harddisk on this card had
died. No problem, I thought, I have four others laying around. Only to
find out that three were dead as well. And although the forth one is
spinning, I am not sure yet if it is working. Running out of
harddisks, it is time too look for replacements.

I have a card laying around that should enable me to use an AT-IDE
drive but that one is not working; it doesn't recognize any attached
harddisk :(

My question is obvious: what other kind of replacements are available
for the disk or for the complete set of disk and card?

Thanks for any info!

since the last post t-bird shows is from 8/20/07?

Go to www.vintagetechnology.co.uk to download latest issue (June '08).
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This issue features:

1970s television sets
Collectible digital cameras
Vintage game-watches
Mattel Aquarius – computer or colourful toy?
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Light pens – magic wand or fun gimmick?
Dolls' house retro electronic delights
Unusual computer/gaming memorabilia
Repairing ZX Spectrums

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Law enforcement is now intercepting text messages,
as proven by Operation Sudden Fall in San Diego.

http://www.usdoj.gov/dea/pubs/states/newsrel/sd050608.html
http://www.signonsandiego.com/news/education/20080506-1338-bn06sdsu2.html

Don't let your personal SMS/text messages fall into
the wrong hands. Encrypt your messages with one
of these:

http://www.CryptoSMS.org
http://www.CryptoSMS.com
http://www.FortressMail.net/fortress_sms.htm
http://www.Cop2p.com/encrypted_sms.html

Be Safe, Be Encrypted, Fuck the Police!!