Macintosh PowerBook 140

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Macintosh PB140.jpg
Macintosh PowerBook 140
CPU: 16 MHz Motorola MC68030
RAM Type:Pseudostatic RAM
Maximum RAM: 8 MiB
Supported OS: System 7.0.1 - System 7.5.5
Introduced:October 21 1991
Discontinued:August 3 1992
MSRP:$3000 (US)
Full Specifications

Launched alongside the PowerBook 100 and PowerBook 170, the PowerBook 140 heralded a new era for the Macintosh that was not only more portable than the Macintosh Portable but offered more features than the low-end PowerBook 100.


The Macintosh Portable had been almost a joke when it came to being classed as a portable machine. Weighing in at nearly 16 lbs, the machine had been anything but and Apple had, wisely, gone back to the drawing board. The result was the PowerBook 1xx series which was unleashed onto the world on October 21st 1991. Initially available in three different guises, the mid-range PowerBook 140 (alongside the low-end PowerBook 100 and the high-end PowerBook 170) offered users power and connectivity without having to pay a fortune.

While the PowerBook 100, and even the Macintosh Portable, had made great use of the Motorola 68HC000, the PowerBook 140 was fitted with a full blown 68030 running at a reasonable 16 MHz. As far as performance was concerned, it simply blew the little PowerBook 100 away, both in terms of processing power and features: the 140 could break through the 8 MiB memory ceiling imposed by the hardware and make use of virtual memory.

Although a miracle of miniaturisation, the PowerBook 100 design team had decided to eliminate any sort of floppy drive and this had been a major concern for many users, especially when an external floppy drive was an additional $200. The 140 came ready equipped with a 1.44 MiB 'SuperDrive' and this was only one area in which the machine overshadowed its little brother. Featuring more serial ports (two rather than one), stereo audio output, and audio input – the 100 was limited to mono audio output and no audio input at all – the 140 may have ended up weighing nearly 2 lbs more than the 100, but it was still a featherweight compared to what had come before.

Full Specifications

  • General
    • CPU: 16 MHz Motorola MC68030
    • ROM: 1 MiB
    • Bus Speed: 16 MHz
    • Data Path: 32-bit
    • RAM Type: Pseudostatic RAM (100 ns)
    • Standard RAM: 4 MiB
    • RAM Onboard: 2 MiB
    • RAM Slots: 1
    • Maximum RAM: 8 MiB
    • Cache: ½ KiB (L1)
  • I/O & Expansion
    • ADB: 1
    • Serial: 2
    • SCSI: 1 (HDI-30)
    • Audio In: Mini-jack
    • Audio Out: 8-bit stereo 22 KHz (mini-jack)
    • Built-in Speaker: Mono
  • Storage
    • Hard Drive: 20 MiB - 80 MiB
    • Hard Drive Type: SCSI
    • Floppy Drive: One 3.5" 1.44 MB SuperDrive
  • Video
    • Built-in Display: Internal 9.8" B&W passive-matrix LCD
    • Max Resolution: 640×400 (1-bit)
  • Miscellaneous
    • Codename: TIM LC, TIM Lite, Leary, Replacements
    • Gestalt ID: 25
    • Power: 17W, 2 amps (NiCad, 2.5 Ah)
    • Case Style: PowerBook 140
    • Dimensions: 11.25" x 9.3" x 2.25" (W x D x H)
    • Weight: 6.8 lbs.
    • Mac OS Support: System 7.0.1 - System 7.5.5
    • Introduced: October 21 1991
    • Introduced: August 3 1992
    • MSRP: $3000 (US)

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