The PowerBook Duo 230 is a

subnotebook Subnotebook, also called ultraportable, superportable, or mini notebook, was a marketing term for laptop computers that are smaller and lighter than a typical notebook-sized laptop. Types and sizes As typical laptop sizes have decreased over t ...

personal computer A personal computer (PC) is a multi-purpose microcomputer whose size, capabilities, and price make it feasible for individual use. Personal computers are intended to be operated directly by an end user, rather than by a computer expert or tec ...

introduced on October 19, 1992 by

Apple Computer, Inc Apple Inc. is an American multinational corporation, multinational technology company headquartered in Cupertino, California, United States. Apple is the List of largest technology companies by revenue, largest technology company by revenue ( ...

. Priced at

US $ The United States dollar ( symbol: $; code: USD; also abbreviated US$ or U.S. Dollar, to distinguish it from other dollar-denominated currencies; referred to as the dollar, U.S. dollar, American dollar, or colloquially buck) is the officia ...

2,610, the PowerBook Duo 230 was the high end model of the two simultaneously released

PowerBook Duo The PowerBook Duo is a line of subnotebooks manufactured and sold by Apple Computer from 1992 until 1997 as a more compact companion to the PowerBook line. Improving upon the PowerBook 100's portability (its immediate predecessor and Apple's th ...

s, the lower end being the US $2,250 PowerBook Duo 210. With a 33 MHz

Motorola 68030 The Motorola 68030 ("''sixty-eight-oh-thirty''") is a 32-bit microprocessor in the Motorola 68000 family. It was released in 1987. The 68030 was the successor to the Motorola 68020, and was followed by the Motorola 68040. In keeping with general ...

microprocessor, 4 MB of RAM and an 80 or 120 MB SCSI

hard disk drive A hard disk drive (HDD), hard disk, hard drive, or fixed disk is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage with one or more rigid rapidly rotating platters coated with magne ...

, the PowerBook Duo 230 was nearly identical to the simultaneously released PowerBook 180 except for the smaller 9.1 inch greyscale "supertwist" passive-matrix LCD and the lack of a 68882 floating-point unit. With the October 1993 introduction of the PowerBook Duo 250 and 270c, the 230 replaced the 210 in the entry level, eventually being discontinued entirely on July 27, 1994 shortly after the introduction of the 68040-based PowerBook Duo 280 and 280c.

Specifications

*Processor:

CPU running at 33 MHz *

Floating Point Unit Floating may refer to: * a type of dental work performed on horse teeth * use of an isolation tank * the guitar-playing technique where chords are sustained rather than scratched * ''Floating'' (play), by Hugh Hughes * Floating (psychological ...

: None *RAM: 4 MB, expandable to 28 MB via a DRAM card * Hard disk: 80 or 120 MB * Floppy disk: None *Systems Supported: 7.1-7.6.1 * ADB: No *Serial: 1 Mini-DIN-8 (includes

LocalTalk LocalTalk is a particular implementation of the physical layer of the AppleTalk networking system from Apple Computer. LocalTalk specifies a system of shielded twisted pair cabling, plugged into self-terminating transceivers, running at a rate ...

) *Modem: optional *Expansion: external 152 pin

Processor Direct Slot A processor direct slot (PDS) is a slot incorporated into many older Macintosh models that allowed direct access to the signal pins of a CPU, similar to the functionality of a local bus in PCs. This would result in much higher speeds than having ...

, used for a

docking station In computing, a docking station or port replicator (hub) or dock provides a simplified way to ''plug-in'' a mobile device, such as a laptop, to common peripherals. Because a wide range of dockable devices—from mobile phones to wireless mou ...

*Screen: 9.1" 4-bit

grayscale In digital photography, computer-generated imagery, and colorimetry, a grayscale image is one in which the value of each pixel is a single sample representing only an ''amount'' of light; that is, it carries only intensity information. Graysc ...

passive matrix LCD, 640×400 resolution

Timeline

References

Duo 230 Computer-related introductions in 1992 {{Mac-stub