papers & manuals
The IBM 5140 - The PC Convertible. IBM's first laptop
A well equipped machine and it would have to be to sell a computer with an older processor in it and no hard drive.
These were probably left out for 2 reasons:
It originally sold for $3500 which was not bad considering that the AT and XT/286 models sold for almost twice that around the same time.
It is not easily upgradable because it does not have expansion slots, but an optional printer can be attached to the back giving a very clean appearance. Space saving ideas included using 3.5" drives to save space and removing the expansion slots to allow the board to fit into its small shell.(1)
The dimensions of the LCD appeared to be unpractical but allowed to see a quarter of a page. The LCD technology meant the next step in the evolution and the IBM 1540 is one of the tipical examples of that evolution, but for a stiff price.(2)
|Last Updated on 16 December, 2003||For suggestions please mail the editors|
Footnotes & References
|1||text based on: http://personal.nbnet.nb.ca/gallante/ibmcpu/5140.html|
|2||translated from: http://www.computermuseum.it/museum/IBM_5140_Convertible.htm|