The machine was a technological showcase of the day, boasting a number of features beyond simple computing, and with a price tag aimed at the "executive" market.

As this milestone arrived and came to the attention of Apple's then-current executives, the decision was made to release a limited edition Macintosh computer to celebrate—and so the "Spartacus" (or "Pomona", or "Smoke & Mirrors") project was born.

The TAM was announced almost 20 years to the day after Jobs and Wozniak incorporated the company, in January 1997 at MacWorld Expo, San Francisco.

[7] The TAM featured a 250 MHz PowerPC 603ev processor and 12.1" active matrix LCD from a PowerBook 3400c/G3 Kanga,[8] powered by an ATI 3D Rage II video chipset with 2 MB of VRAM capable of displaying up to 16-bit color at either 800x600 or 640x480 pixels.

It had a vertically mounted 4x SCSI CD-ROM and an Apple floppy SuperDrive, a 2 GB ATA hard drive, a TV/FM tuner, an S-Video input card, and a custom-made Bose sound system[9] including two "Jewel" speakers and a subwoofer built into the externally located power supply "base unit".

Inspections of units that received a repair by Apple due to the speaker buzz found one or more extra resistors had been installed in the umbilical.

When not required, the keyboard could slide under the TAM's head unit, leaving the trackpad exposed for continued access.

Later G3 upgrade options offered by Sonnet and NewerTechnologies made use of the TAM's Level II Cache slot, which allow the computer to reach speeds of up to 500 MHz.

The back panel must be removed, and replaced with an (included) "hunchback" cover that adds several inches to the depth of the machine.

This is the place where 20th Anniversary Macintosh owners can share a wealth of information on this "insanely great" product.

PC World placed the TAM as 25th in their "Worst Tech Products of All Time" feature in 2006, citing it as one of the priciest listed personal computer with played-out specs.

[13] While the Twentieth Anniversary Macintosh may not have been a well-known machine for its time, nor a big seller, it did have a lasting influence on personal computers.