Toshiba T3100

T3100 was a portable PC manufactured by Toshiba and released in 1986. It featured a hard drive, 8 MHz Intel 80286 CPU and a black & orange 9.6" gas-plasma display with a resolution of 640x400 pixels.
The portable had for the time a special high-resolution 640 x 400 display mode which is similar to and partially compatible with the Olivetti/AT&T 6300 graphics. There's a single proprietary expansion slot for 1200 bit/s modem, expansion chassis for 5x 8-bit ISA cards, Ethernet NIC, 2400 bit/s modem, and a 1 MB memory card (thus 3.6 MB in max total). The base model had 1MB of memory, which could be upgraded to 5MB.
Toshiba T3100 was not a true portable, because it needed an external power source in all except the last version.
Five versions existed:
Reception.
"BYTE" in 1989 listed the T3100/20 as among the "Distinction" winners of the BYTE Awards, citing its "amazingly clear" display and hard drive.