I have the main unit and power adapter.
type computer
country USA
year 1995
os MS DOS / Windows 98
cpu Intel 486DX4
speed 75 MHz
ram 12 MB
disk 3.5″ 1.44 MB
hd 340 MB
graphic 640 x 480 TFT
colors 256
sound beeper
ports monitor, keyboard/ mouse, RS323, centronigs, two PCMCIA, audio
The IBM ThinkPad 370C — Active Matrix Colour ThinkPad
The IBM ThinkPad 370C was a higher-specification colour ThinkPad that featured an active-matrix TFT colour display rather than the passive-matrix screen of lower-end models — a significant quality difference that delivered sharper, brighter, more responsive colour output. Using an Intel 486DX2 processor, the 370C provided solid performance for business applications while the active-matrix display made it suitable for colour presentations and graphic design tasks that passive-matrix screens handled poorly due to their ghosting and limited viewing angles.
Active vs Passive Matrix
The distinction between active-matrix (TFT) and passive-matrix (DSTN/CSTN) displays was one of the most commercially significant factors in early 1990s laptop purchasing decisions. Passive-matrix displays suffered from ”submarining” — the mouse cursor would disappear when moving quickly and reappear elsewhere — poor viewing angles, and slow response times that made video and animation look blurred. Active-matrix displays addressed all these problems but cost significantly more to manufacture, creating a clear quality and price tier in the laptop market.