The PowerBook Duo 230 is a

subnotebook Subnotebook, also called ultraportable, superportable, handtop, mini notebook or mini laptop, is a type of laptop computer that is smaller and lighter than a typical notebook-sized laptop. Types and sizes As typical laptop sizes have decreas ...

personal computer A personal computer, commonly referred to as PC or computer, is a computer designed for individual use. It is typically used for tasks such as Word processor, word processing, web browser, internet browsing, email, multimedia playback, and PC ...

introduced on October 19, 1992 by

Apple Computer, Inc Apple Inc. is an American multinational corporation and technology company headquartered in Cupertino, California, in Silicon Valley. It is best known for its consumer electronics, software, and services. Founded in 1976 as Apple Computer Com ...

. Priced at

US $ The United States dollar (Currency symbol, symbol: Dollar sign, $; ISO 4217, currency code: USD) is the official currency of the United States and International use of the U.S. dollar, several other countries. The Coinage Act of 1792 introdu ...

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 t ...

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 gener ...

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

SCSI Small Computer System Interface (SCSI, ) is a set of standards for physically connecting and transferring data between computers and peripheral devices, best known for its use with storage devices such as hard disk drives. SCSI was introduced ...

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 hard disk drive platter, pla ...

, the PowerBook Duo 230 was nearly identical to the simultaneously released

PowerBook 180 The PowerBook 180 is a portable computer released by Apple Computer along with the PowerBook 160 in October 1992. At the time, it constituted the new top-of-the-range model, replacing the previous PowerBook 170. Its case design and features are ...

except for the smaller 9.1 inch greyscale "supertwist" passive-matrix

LCD A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers to display information. Liquid crystals do not em ...

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 The Motorola 68040 ("''sixty-eight-oh-forty''") is a 32-bit microprocessor in the Motorola 68000 series, released in 1990. It is the successor to the 68030 and is followed by the 68060, skipping the 68050. In keeping with general Motorola ...

-based PowerBook Duo 280 and 280c.

Specifications

*Processor:

CPU running at 33 MHz *

Floating Point Unit A floating-point unit (FPU), numeric processing unit (NPU), colloquially math coprocessor, is a part of a computer system specially designed to carry out operations on floating-point numbers. Typical operations are addition, subtraction, multipli ...

: None *RAM: 4 MB, expandable to 28 MB via a

DRAM Dram, DRAM, or drams may refer to: Technology and engineering * Dram (unit), a unit of mass and volume, and an informal name for a small amount of liquor, especially whisky or whiskey * Dynamic random-access memory, a type of electronic semicondu ...

card *

Hard disk 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 hard disk drive platter, pla ...

: 80 or 120 MB *

Floppy disk A floppy disk or floppy diskette (casually referred to as a floppy, a diskette, or a disk) is a type of disk storage composed of a thin and flexible disk of a magnetic storage medium in a square or nearly square plastic enclosure lined with a ...

: 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 ra ...

) *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, port replicator (hub), or dock provides a simplified way to ''plug-in'' a mobile device, such as connect common peripherals to a laptop, or charge a smartphone. Because a wide range of dockable devices—from mo ...

*Screen: 9.1" 4-bit

grayscale In digital photography, computer-generated imagery, and colorimetry, a greyscale (more common in Commonwealth English) or grayscale (more common in American English) image is one in which the value of each pixel is a single sample (signal), s ...

passive matrix LCD, 640×400 resolution

Timeline

References

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