Apple · PowerBook

Macintosh PowerBook 140

Released October 1991

The PowerBook 140 introduced a 16 MHz 68030, built-in floppy drive and backlit monochrome display in Apple's original 1991 notebook range.

Size
10″
Display
–
Processor
68030 16 MHz (PowerBook 140)
Memory
2 MB – 4 MB
Weight
3.03 kg
Battery
3 h

Display

Screen size
10″
Resolution
640 × 400
Touchscreen
No
Display type
10-inch backlit FSTN monochrome LCD, 640 × 400 pixels at 1-bit colour. Apple's 1991 product information rounds the diagonal to 10 inches; some later catalogues call it 9.8 inches.

Performance

Processor
68030 16 MHz (PowerBook 140)
CPU cores
1
Memory
2 MB or 4 MB
Storage
20 MB to 40 MB
CPU
16 MHz Motorola 68030 with an integrated memory-management unit and no floating-point coprocessor.
Memory type
2 MB pseudostatic RAM on the logic board and one expansion slot; 8 MB maximum.
Storage type
Original 20 MB and 40 MB internal SCSI hard-drive configurations; built-in 1.4 MB SuperDrive floppy drive. Apple's later support sheet lists 40–80 MB internal drives.

Battery and size

Battery life (maker's claim)
Up to 3 hours
Weight
3.03 kg
Battery life detail
Removable nickel-cadmium battery; Apple claimed 2–3 hours of use before recharging.

Connections

Operating system
macOS
Port detail
One Apple Desktop Bus (ADB) port, HDI-30 SCSI connector, two RS-422 serial ports, mono audio input and stereo output. An internal 2400-baud fax modem was optional.
Keyboard
Built-in keyboard with a centred 30 mm trackball below the keys.
Trackpad
Built-in trackball.
In the box
System 7.0.1, battery and AC adapter. Apple dates the model's introduction to 21 October 1991; the technical sheet does not state a separate first-sale day.

Configurations

ProcessorMemoryStorage
68030 16 MHz (PowerBook 140)2 MB20 MB
68030 16 MHz (PowerBook 140)2 MB40 MB
68030 16 MHz (PowerBook 140)4 MB40 MB

Pros and cons

Pros

  • Built-in 1.4 MB floppy drive
  • 68030 processor with 32-bit addressing
  • Two serial ports and sound input

Cons

  • Monochrome passive-matrix display
  • No built-in Ethernet or external video output
  • Maximum 8 MB RAM

Closest rivals

Model
SizeDisplayProcessorMemoryWeightBatteryReleased
10″–68030 25 MHz (PowerBook 170)4 MB3.03 kg3 hOct 1991
10″–Motorola 68030 25 MHz (PowerBook 145B)4 MB3.1 kg3 hJun 1993
10″–Motorola 68030 25 MHz (PowerBook 160)4 MB3.1 kg3 hOct 1992

Sources

  1. support.apple.com/en-mt/112155
  2. savagetaylor.com/wp-content/uploads/documents/Apple_Directions/Apple_Direct_199…
  3. macdat.net/files/pdf/apple/developer_notes/powerbook_140_170.pdf

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