Macintosh 128K

The Macintosh 128K, originally known simply as Macintosh, was the first Macintosh model to be commercially released by Apple Computer, discounting the retrofit of the Lisa 2 into the Macintosh XL.
==Name==
Unlike subsequent Macintosh models, the name "Macintosh 128K" did not appear anywhere on the exterior case and was only identified as "Macintosh" on the back of the first units to roll off the assembly line. The rear case was later revised to include "128K" in red to differentiate it after the 512K model was released on September 10, 1984.
==Release==
The Macintosh 128K was released amid fanfare on January 24, two days after the airing of the 1984 Apple ad during . However, it was met with a lukewarm response.
Apple 1984 Ad Commercial - Original Recording from The Day It First Aired
Macintosh 128K magazine spread.jpg|Magazine ad showing the internal electronics of the Macintosh 128K
==Specifications==
* CPU: 7.8336 MHz Motorola 68000
* RAM: 128 KB
* ROM: 64 KB
* Drive: 1x 400 KB floppy disk
* Ports: 2x serial (printer, modem), 1x external floppy, 3.5mm line out (mono)
* Clock battery: 4.5V / #523
* First supported OS: System 0.85 / 1.0
* Last supported OS: System 3.2
The Macintosh 128K was not designed to be user-upgradeable, requiring third-party upgrades for more memory. Without a minimum of 512 KB of RAM, it did not have enough memory to support the first Apple HD20 hard drive.
==Credits==
The original Macintosh was unusual in that it included the signatures of 48 members of the Macintosh Division as of early 1982 molded on the inside of the case.Macintosh Insiders (PDF) by Owen L. Linzmayer, Apple Confidential 2.0: The Definitive History of the World's Most Colorful Company p.104-108, No Starch Press. 2004.
*Peggy Alexio
*Colette Askeland
*Bill Atkinson
*Steve Balog
*Bob Belleville
*Mike Boich
*Bill Bull
*Matt Carter
*Berry Cash
*Debi Coleman
*George Crow
*Donn Denman
*Chris Espinosa
*Bill Fernandez
*Martin Haeberli
*Andy Hertzfeld
*Joanna Hoffman
*Rod Holt
*Bruce Horn
*Hap Horn
*Brian Howard
*Steve Jobs
*Larry Kenyon
*Patti King
*Daniel Kottke
*Angeline Lo
*Ivan Mach
*Jerry Manock
*Mary Ellen McCammon
*Vicki Milledge
*Mike Murray
*Ron Nicholson Jr.
*Terry Oyama
*Benjamin Pang
*Jef Raskin
*Ed Riddle
*Brian Robertson
*Dave Roots
*Patricia Sharp
*Burrell Smith
*Bryan Stearns
*Lynn Takahashi
*Bud Tribble
*Randy Wigginton
*Linda Wilkin
*Steve Wozniak
*Pamela Wyman
*Laszlo Zsidek
==Upgrade paths==
A Macintosh 128K could be upgraded to a Macintosh Plus through the Macintosh Plus Logic Board Kit (part no. M2518) from Apple, which included a new logic board with 128KB ROMs (to replace the 64KB version), 1 MB memory, SCSI port, and a replacement rear case. An extended Macintosh Plus keyboard was available separately (part no. M2519).Apple Introduces the Macintosh Plus, Tech Insider. 1986-01-16.
==References==
==External Links==
*Macintosh 128K: Technical Specifications at Apple
*Macintosh 128K at Apple-History
*Apple Macintosh at the Apple Museum
*Apple Macintosh Original (128k) specs at EveryMac
*Apple Macintosh (128k) at ForeverMac (2014-08-14, 2012-09-23)
*Mac 128K at Low End Mac
*Macintosh 128K Home Computer by Steve Jobs, Jerry Manock at the Museum of Modern Art (1983)
*Apple Macintosh 128k, 1984 at Museums Victoria Collections
*Macintosh 128K at Wikipedia
pl:Macintosh 128k
Category:1984 introductions