Click Here to visit our Sponsor
The Latest News ! The History of Computing The Magazine Have Fun there ! Buy books and goodies
  Click here to loginLogin Click here to print the pagePrinter ViewClick here to send a link to this page to a friendTell a FriendTell us what you think about this pageRate this PageMistake ? You have mr info ? Click here !Add Info     Search     Click here use the advanced search engine
Browse console museumBrowse pong museum


C64 maze generator T-shirts!

see details
Ready prompt T-shirts!

see details
Spiral program T-shirts!

see details
Pixel Deer T-shirts!

see details
BASIC code T-shirts!

see details
Pak Pak Monster T-shirts!

see details
Shooting gallery T-shirts!

see details
Vector ship T-shirts!

see details
Pixel adventure T-shirts!

see details
Breakout T-shirts!

see details

K > KAYPRO > Kaypro 2x   

Kaypro 2x

The Kaypro 2x was one of the last models Kaypro produced. Size and appearence were the same as the first Kaypro II, but Internal hardware was inspired by the Kaypro 10.

It came with a 4 MHz Z80A processor, dual slimline 400 KB floppy drives, a built-in 300 baud modem, two serial ports and a full set of Micropro software (WordStar, CalcStar, DataStar)

It is said that Arthur C. Clarke worked in the movie version of "2010: Odyssey Two", a sequel of "2001", using a Kaypro 2x and its built-in modem for transfering texts from Sri Lanka, where he lived, to Los Angeles.


Roy Miller specifies:
I own two. One looks like the machine you have (colors of the original 2), and has the same equipment. The other doesn't have a modem, and came in the same color scheme as the 4, 10, and 16.
The one in the older color scheme has a sticker with an "X" on it pasted just after the "2" on the back. The dark grey one doesn't have that. It seems clear that they used the older 2 cases as well as newer cases.


More info about the internal modem by David C. Oshel:
The internal modem didn't work with the software Kaypro provided, so you had to use a Hayes Smartmodem attached to a serial i/o port. The internal modem chip had a defect: One of its pinouts went low when the specs said it went high.
We put an oscilloscope on the pup and saw this for ourselves on the Beacon Microcenter (Ames, Iowa) workbench in 1983. I was able to write a driver that made it work, but nobody cared.

Special thanks to Tom Casey who donated us this computer !



I just acquired a Kaypro 2X at the local used bookstore for $50. Although the keyboard was demonstrated to me in the store, I bought it without a keyboard cable and was wondering if anybody has one. Please email me at if you have one, thanks. I''ve tried making one from a handset cord without succiness. The machine does boot into CP/M.

Wednesday 9th November 2016
Glendon Gross (Tucson, Arizona, USA)
The Clones Page

This picture looks like what I always referred to as a "New 2" - a machine that looked like the old 2, only with half-height DSDD drives.

There''s another 2X, only this one is gray and has both the modem and real-time clock. The one I currently have still keeps time, although the year went funny after 1999.

Sunday 23rd October 2011
Bryan Walker (USA)

I bought a 2X to modify, as I wasn''t sastisfied with the 10$ threw in a Seagate ST-225 (whose odd ''ratcheting'' noise as it started I still miss to this day!), some ''pigghybacked'' ttl chips on the decoder circuit to double the floppy storage, a pluPerfect Systems BIOS, and a MEG of ramdisk - don''t even want to think about what that cost$)

Tuesday 13rd September 2011
Bill Bathke II (us)
Rants $ Raves


NAME  Kaypro 2x
TYPE  Transportable
YEAR  1984
BUILT IN LANGUAGE  None (M-BASIC and O-BASIC on diskette)
KEYBOARD  Detachable, 72 key typewriter style keyboard with 18 programmable keys.
RAM  64 KB
ROM  Unknown
TEXT MODES  80 chars x 25 lines (ADM-3A compatible)
GRAPHIC MODES  160 x 100 text squares
COLORS  built-in 9'' non-glare green phosphor screen
SOUND  Beep only
SIZE / WEIGHT  45 (W) x 38.5 (D) x 21 (H) cm / 11.5 Kg
I/O PORTS  2 RS232c serial ports, 1 Centronics-type parallel port, keyboard, built-in 300-baud modem
BUILT IN MEDIA  2 x 5.25'' DS/DD 400 KB half-size floppy drives
OS  CP/M 2.2
POWER SUPPLY  Built-in switching power supply unit
PERIPHERALS  10 MB hard disc, battery pack/charger
PRICE  $1595 (in 1986)

retro computing t-shirts and goodies
3D Cubes
BASIC code
C64 maze generator
Pak Pak Monster
Pixel adventure
Pixel Deer
Ready prompt
Shooting gallery
Spiral program
Vector ship

Related Ebay auctions in real time - click to buy yours

Click here to go to the top of the page   
Contact us | members | about | donate old-systems | FAQ
OLD-COMPUTERS.COM is hosted by - NYI (New York Internet) -