Article Index – 1991

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Quadra 900

October 1991 saw the introduction of Macs using Motorola’s high-octane 68040 CPU. The Quadra 900 was a full-fledged tower design, although it had only a single front accessible drive bay. The Quadra 700 and 900 were the first Macs with built-in ethernet, using Apple’s AAUIs connector.

Quadra 700

October 1991 saw the introduction of the firest Macs using Motorola’s high-octane 68040 CPU. The Quadra 700, built in the same chassis as the Mac IIci, was built as a minitower, although with no front accessible hard drive bays. The Quadra 700 and 900 were the first Macs with built-in ethernet, using Apple’s AAUI connector.

Mac Classic II

Introduced in October 1991, the Classic II (a.k.a. Performa 200) was both an upgraded Classic and a replacement for the venerable SE/30. Based on a modified LC motherboard, the Classic II shares a 16-bit data path and a RAM ceiling of 10 MB (the Classic II is slower than the SE/30, even though both use […]

PowerBook 170

The PowerBook 170 was the only first generation PowerBook to sport an active matrix screen. With a 25 MHz 68030, it was 2/3 faster than the PowerBook 140. Between the faster CPU, faster screen, and addition of a floating point unit, the 170 was nearly twice as fast as the 140. It was replaced by […]

PowerBook 140

The PowerBook 140 had a physically larger passive-matrix screen than the PowerBook 100 (although it displayed the same 640 x 400 pixels), a more efficient CPU, and a 2-hour NiCad battery (the same one used on all PowerBook models from the 140 to the 180). It was replaced by the 25 MHz PowerBook 145in August […]

PowerBook 100

The PowerBook 100 was a big step forward from the Mac Portable. First and foremost, it was just one-third as heavy at 5.1 pounds. Secondly, it was several thousand dollars less expensive. The weight reduction was accomplished by using lighter plastics, eliminating the internal floppy drive, and using a smaller (2 hour, 7V) lead-acid battery. Cost […]

SCSI Accelerator 7.0

SCSI Accelerator 7.0 is a set of extensions that work with a Mac Plus running System 7 and allows improved SCSI throughput. As a former Mac Plus owner, I will attest to the fact that they really do work. It’s been a few years, but I believe I had my hard drive interleaved at 2:1 […]

Backlit Mac Portable

Apple took the “underwhelming” Mac Portable, replaced the non-backlit 9.8″ 1-bit 640 x 400 pixel active matrix screen with a backlit display, increased base RAM to 2 MB or 4 MB, lowered the memory ceiling to 8 MB, and replaced expensive the SRAM (static RAM) chips with less-expensive pseudo-SRAM.

Dynamac IIsf and IIsf/30

I found this one mentioned in the July 1991 MacUser magazine, although the Dynamac IIsf had been announced in January 1991. Where the original Dynamac (1987) was essentially a portable Mac Plus, and the short-lived Dynamac SE/30 (1988) was an Mac SE/30 with a 640 x 480 8-bit video card that also supported the 1152 […]