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Steve Jobs and LISA Computers

Officially, "Lisa" stood for "Local Integrated Software Architecture", but it was also the name of Apple co-founder Steve Jobs' daughter.
Unfortunately, the floppy drives were slow and unreliable. Because of this, after selling about 6,500 Lisa computers, Apple offered an upgrade path for Lisa owners, replacing the two "Twiggy" drives with a single 400K 3-1/2 inch Sony floppy drive. The new drive holds half as much data as the old one, but is much more reliable. 

Apple Lisa

Introduced: January 1983 Released: June 1983 Price: US $9,995 How many? 100,000 in two years CPU: Motorola 68000, 5 MHz RAM: 1 Meg Display: 12" monochrome monitor 720 X 364 graphics Ports: 1 parallel, 2 serial ports mouse port Expansion: three internal slots Storage: Two 5-1/4 inch floppy drives external 5 Meg hard drive OS: Apple Lisa GUI