Click Here to visit our Sponsor
The History of Computing The Magazine Have Fun there ! Buy goodies to support us
  Mistake ? You have mr info ? Click here !Add Info     Search     Click here use the advanced search engine
Browse console museumBrowse pong museum


ZX Spectrum T-shirts!

see details
ZX81 T-shirts!

see details
Ready prompt T-shirts!

see details
Atari joystick T-shirts!

see details
Arcade cherry T-shirts!

see details
Spiral program T-shirts!

see details
Battle Zone T-shirts!

see details
Vectrex ship T-shirts!

see details
Elite spaceship t-shirt T-shirts!

see details
C64 maze generator T-shirts!

see details
Moon Lander T-shirts!

see details
Atari ST bombs T-shirts!

see details
Competition Pro Joystick T-shirts!

see details
Pak Pak Monster T-shirts!

see details
BASIC code T-shirts!

see details
Pixel adventure T-shirts!

see details
Vector ship T-shirts!

see details
Breakout T-shirts!

see details


Osborne Corp.

Untitled Document

Curtis A. Ingraham (former Osborne's employee) reports:
Adam Osborne, formerly a chemical engineer in the petroleum industry and later a consultant in the new microprocessor/microcomputer industry, conceived the Osborne 1 as a complete computer (CPU, keyboard, monitor, diskette drives, and I/O ports) in a portable package bundled with ready-to-run operating system and applications software, all for a reasonable price. These features did not exist in the typical computer of that time, let alone in combination in one product. Lee Felsenstein designed the computer and brought it to production. The company grew from just a few employees to over a thousand in a year or two.

The Osborne Executive, OCC's second product, was another CP/M machine intended to overcome the limitations of the Osborne 1 by providing a larger screen with an 80-column width. Add-on memory boards were an option.

Following the introduction of the Executive, OCC was developing a PC-compatible portable (not the Encore) which looked much like the Executive. This project was near production at the time of the bankruptcy. I recall that the PC-compatible was to be called the "Osborne PC". It is quite true that the PC announcement killed the sales of the exsiting models. The company was preparing to offer an upgrade plan to convert Executives to PCs in the hopes of sustaining Executive sales, but the sales died anyway. I believe five copies of the PC were built, and at least one of them was working. It looked much like the Executive. The company was desperately trying to sell the design to other companies just before the bankruptcy.

Martin Scott Goldberg says :
The Sol was not designed by Bob Marsh and the Osborne was not made a reality by Adam Osborne. Both were designed and built by Lee Felsenstein, who lived in Bob Marsh's garrage and was the actuall electrical engineer of their stuff. He's also known for being the moderator of the Home Brew Computer Club. The operating system was written by the infamous Steve Dompier (the man who made the Altair play music at a Homebrew meeting).

The idea Les Solomon had put forth was for an intelligent terminal, not an actuall full computer, and that's the way the Sol was presented in Popular Electronics in 1976. Though it was actually a full blown computer with a terminal built in.

When Proc Tech folded by 1980, Lee was then hired that year by Adam Osborne to design and build a "portable" computer. This of course turned out to be the Osborne 1.

Martin Greenwood reports :
In 1984 I was with a bunch of guys who had Osborne 1 s and later I bought (and still have) an Osborne Executive second hand. The Floppy Disks were single sided, but enterprising souls got a small hole punch and made holes in the jacket at just the right place so the disk could be turned over and written both sides. This changed a Floppy into a Flippy.

dBase II would run on Osbornes, and these guys developed a wiring documentation package for a brewery control system (one of the first really big PLC projects, certainly in this country) using their Osbornes. The program was then run on an IBM PC that had been fitted with a hard disk - before the XT was officially available in Australia. That database eventually exceeded 1Meg in size. To print it out we set up the IBM and a dot matrix printer at night with a new box of A3 width fanfold paper and spent half an hour next morning sorting out the pile of paper it had produced and spread over the floor. Crude, but it saved the project heaps.

From Dale Carpenter:
I was hired by Xerox in 1983 to do among other things fix Osborne's. I have installed many screen-paks on Osborne 1's and 1A's, the screen size was 52/80/104. This capability was an option that included the composite video jack. We installed a piggyback board on standoffs and drilled a hole in the front cover for the comp. video jack. Double density floppy drives was another add-on option that was very popular. It too was an add-on board between the floppy data cable and the motherboard.There is also a major differnce between 1's and 1A's. The 1 is the brown/tan case as your picture shows the 1A is a grey case that is much more squared off looking. The executive used the 1A case with a fan built into the handle and a different front facia.

Eric Peterson Osborne 1 experience:
I owned two Osborne 1s back in the day, one in the tan case and one in the grey-blue.  I had the most exotic of peripherals: a $1400 external 11 MB hard drive, about the size of a shoebox.  It was a bottomless pit into which you could endlessly pour data without filling it up -- or at least, it seemed that way for a while.  It interfaced via a daughterboard: you pried
the Z80 out of the motherboard, inserted the drive controller board's jumper into the processor socket, plugged the ÁP into the daughterboard, and ran a ribbon cable out through the case near the power supply, thereby deriving great pleasure and the envy of all your friends.

 I also had the Official Osborne 80-Column Adapter (whee!) that drove a composite monitor, a great relief.  The only hitch was that you couldn't unplug it with the power on, else it'd blow something in the video circuits on the motherboard, not a Good Thing.

 The 300-baud modem actually became useful towards the end of the computer's life as CompuServe began to get interesting.

 IIRC my gray/blue one came bundled with dBase II as well as the usual WordStar, VisiCalc and such.   Call me a throwback, but I still set the cursor movement keys on my text editors (e.g. Visual Studio) to the old WordStar configuration -- but I think I have some justification, as I'm a far faster programming-sort-of-typist than the latest crop who have to flail
around for the arrow keys or the mouse when they want to move the cursor one space in any direction.

They were good machines, and I got an awful lot of work done with them. I was also lucky that my first encounter with assembly programming was on the Osborne's Z80; I'm completely happy doing stuff like bitfiddling Pentium 4
instruction pipes, these days, but if I had to learn that sort of thing from the ground up, I'd just go shoot myself.

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) -