The ThinkPad is a line of business-oriented laptop computers, originally designed and marketed by IBM. From its 1st release in 1992 on it has been a successful and robust device with a distinct appearance. Reliable enough to be used by NASA in its space mission to repair the Hubble telescope.
The early systems use a Intel 80486-chipset, have a monochromatic display and run Windows 3.1 on top of IBM PC-DOS. Later versions followed the common developments by using Windows95, Pentium processor, VGA color display, RAM, IDE Harddisk, all increasing in capacity, speed and/or size.
The model 755CEX as shown is somewhere in between this development, not produced in large quantities, but typical for the state of art around 1994 (see specifications).
In 2005 IBM sold it production of PC's and laptops to the Chinese manufacturer Lenovo.
Specification ...
CPU Intel 80486
Memory 4MB
Videocard Western Digital
Display 10,4 inch TFT VGA 640x480 with 256 colors
Harddisk 2,5 inch IDE
Floppy 1.44MB 3,5 inch in UltraBay slot
Trackpoint pointer device
Extension PCMCIA
Connectors: serial, parallel, VGA, Dock connector