I have the main unit.
type computer
country USA
year 1987
os MS-DOS
cpu Intel 80C88
speed 4 / 7.14 MHz
ram 512 KB
disk 2*720K 3.5
hd 10 MB (onko?)
graphic 11? LCD 80 x 25 text, 640×256 graphics
colors mono
ports telephone, serial, parallel, system bus
The Data General/One Model 2t — With Built-in Thermal Printer
The Data General/One Model 2t was a special variant of the DG-1 laptop that integrated a battery-powered thermal printer directly into the unit — an optional accessory that Data General offered to users who needed hard copy output in the field without connecting to an external printer. The thermal printer produced output on heat-sensitive paper, requiring no ink or ribbon and making it genuinely practical for portable use. This all-in-one configuration represented Data General’s recognition that mobile professionals needed complete portable solutions, not just portable computers.
Thermal Printing Technology
Thermal printing — which uses heat rather than ink or impact to produce marks on specially coated paper — was well-suited to portable applications in the 1980s. Thermal printers had no moving ink or ribbon mechanism to jam or run dry, consumed relatively little power, and were compact enough to integrate into a laptop chassis. The trade-off was the requirement for special heat-sensitive paper that faded over time, making thermal printouts less suitable for archival purposes than standard paper output.
Complete Portable Workstation
The Model 2t with its integrated thermal printer represented one of the most complete portable computing solutions available in the mid-1980s — a self-contained machine capable of running DOS software, editing documents, and printing output entirely on battery power. For sales representatives, field engineers, and executives who needed computing and printing capability away from offices, the 2t offered a level of functionality that would not be matched by competing products for several years.