Atari STacy

STacy
Atari Stacy 2 portable computer with professional MIDI extension
ManufacturerAtari Corporation
Release dateSeptember 1989 (1989-09)
Introductory priceUS$2,299 (equivalent to $5,830 in 2024)
Discontinued1991
Units shippedestimated 35,000+
Operating systemAtari TOS 1.04
CPUMotorola 68HC000 @ 8 MHz
MemoryRAM: 1 MiB (expandable to 4 MiB)
ROM: 192 KiB
Storage3.5" floppy drive, 3.5" SCSI 20MB-40MB harddrive Conner Peripherals Inc.
Display10.4" EPSON LCD passive matrix backlight
Graphics320x200 (16), 640x200 (4), 640x400 (2)
SoundYamaha YM-2149, three channels, 8 octaves
Input95 keys, QWERTY, 2 Joysticks, RS 232C, Centronics, external Floppy, ROM-Cartridge, DMA for Printer/HD, MIDI In/Out, Monitor
PowerNiCad pack, 12 standard C cell alkaline batteries, DC18V 2.0A 36W AC Adaptor
Dimensions13.3 x 15 x 13.3 inches
Weight15.2 lb (6,9 Kg)
SuccessorST BOOK

The STacy is a portable computer version of the Atari ST.

The computer was originally designed to operate on 12 standard C cell flashlight batteries for portability. When Atari realized how quickly the machine would use up a set of batteries (especially when rechargeable batteries of the time supplied insufficient power compared to the intended alkalines), they simply glued the lid of the battery compartment shut.

The STacy has features similar to the Macintosh Portable, a version of Apple's Macintosh computer which contained a built in keyboard and monitor.

With built-in MIDI, the STacy enjoyed success for running music-sequencer software and as a controller of musical instruments among both amateurs and well-known musicians.