The Macintosh PowerBook 100 is the entry-level notebook Macintosh. It has
many of the features of the Macintosh Portable, but in a lighter and
smaller enclosure. The main differences are that the PowerBook 100 does
not have a processor direct slot, ROM expansion slot, internal floppy
drive, nor an external modem serial connection. The display is Supertwist
instead of active matrix display.
The Macintosh PowerBook 100 has a new feature, SCSI disk mode. This mode
allows another Macintosh to mount the internal hard disk drive. This mode
requires a special SCSI disk mode adapter. The ROM contains the firmware
for this mode. No other Macintosh has this feature.
The basic performance is the same as the Macintosh Portable. This is
approximately twice the performance of a Macintosh Classic.