The Twentieth Anniversary Macintosh (or TAM) was a radical change from existing computers. The slim unit (just 2.5″ deep) uses the same kind of LCD screen usually found in laptops. Bose Acoustimass stereo speakers surround it, along with a large subwoofer in the base power unit, for really exceptional sound.

The 12.1″ active-matrix screen and leather-bound keyboard are based on parts shared with the PowerBook 3400c . It doesn’t come with a numeric keypad or mouse, but does include a trackpad. The TAM uses a 2.5″ laptop hard drive, the first desktop Mac to do so (the second was the first Mac mini , introduced in 2005).

The logic board is based on the “Gazelle” architecture shared by the Power Mac 5500 and 6500 . According to MacSpeedZone , upgrading the 256 KB level 2 (L2) cache to 512 KB boosts performance by 15%; going to 1 MB improves it by 27%. Some power users have used the L2 cache slot to upgrade to a G3 processor .

Specs (via Low End Mac)

• Cpu: 250 MHz PPC 603e with built-in floating-point unit
• Bus: 50 MHz
• Ram: 32 MB (expandable to 128 MB, accepts two 168-pin 5V 60ns or faster EDO or FPM DIMMs)
• Rom: 4 MB
• Hard Drive: 2 GB 2.5″ ATA/EIDE drive, 136 GB maximum with HFS+ and Mac OS 8.1 or later, upgrades may require some modification as the mounting holes in the original drive bracket do not match newer notebook IDE drives.
• Floppy Drive: 1.4 MB Apple SuperDrive (manual insert)
• Video: 12.1″ 800 x 600 at 8- or 16-bit. 24-bit video support may be possible with ATI January 2002 retail drivers, as noted by Rudy V. Pancaro in the archived Twentieth Anniversary Macintosh forum, although the display itself only supports 18-bit output (6 bits per color channel).
• Vram: 2 MB built-in SGRAM
• Gestalt Id: 512
• Code Names: Pomona, Spartacus
• Upgrade Path: L2 cache slot upgrades
• Adb Ports: 1 Mini DIN-4, maximum power draw of 500mA total for up to 3 devices, additional port on back of keyboard. Keyboard draws 25-80mA, trackpad draws up to 10mA.
• Scsi: DB-25 connector on back of computer, supports up to 6 external devices.
• Weight: 14.9 lbs. (6.8 kg)
• Level 2 Cache: 256 KB, expandable to 1 MB
• Power Supply: 90-130/180-264 volts, 140 watt maximum, 478.8 BTU per hour.
• Cpu Performance: 237, MacBench 4
• Gpu: ATI 3D Rage II
• Cd-Rom: 4x SCSI
• Serial Ports: 2 Mini DIN-9 GeoPorts, with external GeoPort Telecom Adapter capable of 33.6kbps.
• Pci Slots: 1 6.88″ PCI 2.0 compliant slot, 15 watt maximum.
• Comm Slot Ii: installing an internal modem in the comm slot will disable the modem GeoPort.
• Other Expansion Slots: 1 internal pass-through video socket (mirrors built-in screen), 1 internal DAV socket (for use with video editing and ISDN cards)
• Other Ports: 2 F-type tuner connectors for TV and FM, S-video input (compatible with NTSC, PAL and SECAM), 3.5mm 16-bit stereo input and output ports on back and headphone jack in front, Apple PlainTalk microphone included.
• Apple Repair Manuals: Service manuals for pre-G3 PowerMacs, including the 20th Anniversary Mac .
• Apple Support: Twentieth Anniversary Macintosh: Technical Specifications ( archived, with more detail )

The first cable-ready Macintosh! No, not ready for a cable modem – ready for cable TV.

More or less a black LC 520 (complete with a black mouse and black keyboard), Macintosh TV lets you watch 16-bit TV or use 8-bit computer graphics. (Assuming you were in the US, Canada, or some other country using NTSC video. Mac TV doesn’t support any other broadcast standard.)

This was perhaps the oddest Macintosh ever. It was the last desktop Mac with a 68030 processor, the first with a built-in TV tuner, the first black desktop Mac, and the first Mac to ship with a remote control. It is the only model in the “500 Series” that doesn’t have an available PDS (Processor Direct Slot) – that gave way to the TV tuner. The built-in 14″ Trinitron monitor displays 16-bit TV images, but only 8-bit computer graphics. Software allows it to capture a single TV frame as a PICT file.

Specs (via Low End Mac)

• Cpu: 32 MHz 68030
• Fpu: none, not even as an option
• Performance: 7.0 MIPS
• Ram: 5 MB from factory (4 MB on motherboard, expandable to 8 MB using a single 100ns 72-pin SIMM; can use 1 MB or 4 MB SIMM)
• Rom: 1 MB
• L2 Cache: none
• Hard Drive: 60 MB
• Video: 512 KB VRAM; supports 640 x 480 at 8-bits
• Addressing: 32-bit
• Gestalt Id: 88
• Adb: 2 ports for keyboard and mouse
• Scsi: DB-25 connector on back of computer
• Serial: 2 DIN-8 RS-422 ports on back of computer
• Pram Battery: 3.6V half-AA
• Weight: 40.5 lb.
• Cd-Rom: 2x
• See: Online resources and links for the Mac TV

modified version of the Apple Lisa personal computer made by Apple Computer, Inc.

Introduced on 24 January 1984, the Lisa 2 adopted the same 400 KB 3.5″ floppy drive as the simultaneously introduced Macintosh . It was available with the same 5 MB ProFile hard drive as the original Lisa or an internal 10 MB hard drive.

The Lisa 2 was repackaged as the Macintosh XL in January 1985 , then discontinued in April 1985.

With MacWorks XL , the Lisa 2 and Macintosh XL can run a fair bit of legacy Macintosh software compatible with System 3.2 and earlier. In 1988, MacWorks Plus was introduced, which emulates the Mac Plus and can run System 6.0.3. A later version, MacWorks Plus II, supports System 6.0.8, the last version of System 6.

Specs (via Low End Mac)

• Cpu: 5 MHz 68000
• Ram: 512 KB, expandable to 2 MB
• Rom: 16 KB
• Gestalt Id: 2
• Weight: 48 lb.
• Floppy: 3.5″ 400KB drive
• Sound: beeps