September 1989: Much excitement surrounds Apple's first battery-powered Mac. But the 4-inch thick, 16-pound beast stretched the definition of "Portable". And though $6500 wasn't unusual at that time, it was underpowered, and couldn't run on AC power while charging.
Apple spared no expense, adding a 10-inch (640 by 480-pixel) active monochrome display—while PC portables were using blurry passive screens. In 1991, a backlight made the screen easier to read, but Apple's other "improvements" included cutting the battery life in half. The Macintosh Portable was killed-off in October that year by the truly portable PowerBook 100.