This Page describes the original Olivetti Quaderno (PT-XT-20). Note that I also have a page on the Quaderno 33 (PT-AT-60).
In Germany, these were also sold by Vobis under the name Highscreen Laptalk. They made quite a splash in 1992 due to both their size and the fact that you could use them as a voice recorder - even with the lid closed! A builtin signal processor is creating the astounding compression rate of 10min per 1MB of disc-space.
|Size:||21cm x 15cm x 3.3cm (A5 footprint) at 1050g.|
|Screen:||14cm x 10.5cm (7.5") reflective LCD-display, DCGA (640 x 400).|
|Keyboard:||14mm pitch (yes, this is small! Your keyboard at home is 19mm).|
|HDD:||2.5" (0.69"x2.75"x4"), 21MB, supposedly a Conner CP 2024.
Users have reported C/H/S=653/2/32 (20.41MB) and CHS=615/4/17 (20.42MB).
identifies the drive in one of my Quadernos as
Unfortunately I can not boot my other Quaderno and verify its
geometry. Power requirements have been quoted as
Interrupts Pass CMOS RAM Checksum Error - RUN SETUP RT Clock Pass ... Fixed Disk: Not PresentThe old disk was labelled:
Conner CP2024 5V 640mA K0WW35 CP2024 OLV02 9203 BE56421 KAT 2.38 SG3 Nand the new one was labelled
Conner CP2024, 5V 640mA K0TRNH CP2024 OLV02 9236 BE55421 K2.38 SG3 Mand, indeed, the Quaderno is now fully functional again. I think that the replacement disk is also newer (the old one said something about patents pending, while the new one says patented), so I keep my finger crossed that it will last me some more...
|Processor:||NEC V30HL at 16MHz, a low-power version of the 80186.|
|Bios:||I only know the date: Friday, the 13th of March 1992.|
|PCMCIA:||One Type II slot. Unfortunately only rel. 1.0, which doesn't support I/O (the standard, that is, not the slot, which well might...).|
You can even access the internet through this unit. I'm using a 1993 Practical Peripherals Pocket Modem which supports V.42bis - up to 2400bit/s as a modem, and up to 9600bit/s as FAX. I bought mine (new!) from Pendragon technologies which might still have some to sell. It comes with all the original papers, including advertisement for long disfunct BBSs and other periode-stuff. It's also small and battery-operated (allegedly up to 3.5 hours, but the batteries on mine weren't feeling to well, and still aren't). The downside is the extremely low speed. Also, it's white, which doesn't really go to well with the Quaderno's dark grey colour.
My internet-provider (the University of Freiburg) provides both a very simple dial-in account as well as PPP. For the first, the software that came with the modem proved mostly adequate. For the second, I use NetTamer. It not only does all the PPP-stuff, but POP3, SMTP, FTP, TELNET, HTTP, finger, ping and a couple of others. It comes in three different flavours: 386-based (which will not run on the Quaderno), XT-based (which runs nicely), and a version specifically designed for handhelds, allowing you to display graphics on a CGA and providing a much more readable font, but somewhat crippeled otherwise. Here's how to set it up for the University of Freiburg (in German).
DesqView/X 2.0 does not seem to work on this machine.
It installs alright (but requires 13MB for a full install.
These can later be reduced to approx. 2MB, but only
after a full install), but fails to run with
Error opening DESQVIEW.DVO file...
run-time error R6001
- null pointer assignment
An instruction how to dissassemble the Quaderno. Use at your own risk.
AA Computech might be able to sell you a replacement HDD.
The connectors are from
Tx20A Series, reportedly
TX20A-10PHI-D2P1-D1 10-pin male connector kit (serial)
TX20A-36PHI-D2P1-D1 36-pin male connector kit (prt/fdd)
In Germany, Rimec seems to distribute these connectors.
Franz Förth reports that in Germany these connectors are also available from:
ELMA GmbHat DM 25,-- per connector.
Neuwieder Straße 10
Phone +49 (0)911 / 95 20 211
FAX +49 (0)911 / 52 11 05
If you need a new switching power supply, because yours died (as did mine), or because you lost yours, or simply want something even smaller, have a look at the ones made by Egston - in my opinion the best (and best-priced) on the market.