PowerBook 140 and 145: Description (7/93) (Discontinued)

This article describes the Macintosh PowerBook 140 and 145 notebook computers. The only difference between the 140 and the 145 is the clock speed of their 68030 microprocessors. Note that the PowerBook 145B is functionally equivalent to the 145; in most cases a reference to the PowerBook 145 also applies to the 145B.

Note: With the PowerBook 145 and System 7.0.1, when you choose About This Macintosh... from the Apple menu, you'll see a window labeled "PowerBook 140". System 7.1 corrects this.


The Macintosh PowerBook 140 and 145 fit easily inside a briefcase. They're ergonomically designed with an integrated trackball and palm rest to work with easily on your lap. You can adjust the standard-size keyboard and full page-width display.

The PowerBook 140 and 145 offer greater performance than the PowerBook 100. They have a built-in floppy disk drive that accommodates Macintosh, MS-DOS, OS/2, and ProDOS formats.

Built-in features:

* Networking capability that gives access to all the resources in an
AppleTalk network.

* Six built-in ports to plug the PowerBook 140 or 145 directly into high-
capacity hard disks, printers, and input devices.

* An optional modem sends electronic mail, accesses information on other
computers, connects to an AppleTalk network, and sends documents to
facsimile machines.

* Built-in sound-input capability.

* Processor: 16 MHz 68030 microprocessor (PowerBook 140)
25 MHz 68030 microprocessor (PowerBook 145)

* 2MB (on the 140) or 4MB RAM, expandable to 8MB

* Expansion: Six built-in ports for peripherals
Internal slots for modem and RAM

* Display: Backlit Supertwist, 640 by 400 pixels

* System Software 7.1, with multitasking, file sharing, Balloon
Help, and TrueType fonts

* Networking: Built-in AppleTalk networking
File sharing without a dedicated server

* Compatibility: Macintosh, MS-DOS, OS/2, and ProDOS floppy disk formats

Article Change History:
14 July 1993 - Updated to include PowerBook 145B.

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Published Date: Feb 18, 2012