The Computer History Museum (CHM) is a museum of

computer history The history of computing hardware covers the developments from early simple devices to aid calculation to modern day computers. Before the 20th century, most calculations were done by humans. The first aids to computation were purely mechanic ...

, located in

Mountain View, California Mountain View is a city in Santa Clara County, California, United States. Named for its views of the Santa Cruz Mountains, it has a population of 82,376. Mountain View was integral to the early history and growth of Silicon Valley, and is the ...

. The museum presents stories and artifacts of

Silicon Valley Silicon Valley is a region in Northern California that serves as a global center for high technology and innovation. Located in the southern part of the San Francisco Bay Area, it corresponds roughly to the geographical areas San Mateo County ...

and the

information age The Information Age (also known as the Computer Age, Digital Age, Silicon Age, or New Media Age) is a historical period that began in the mid-20th century. It is characterized by a rapid shift from traditional industries, as established during ...

, and explores the computing revolution and its impact on society.

History

The museum's origins date to 1968 when

Gordon Bell Chester Gordon Bell (born August 19, 1934) is an American electrical engineer and manager. An early employee of Digital Equipment Corporation (DEC) 1960–1966, Bell designed several of their PDP machines and later became Vice President of Engi ...

began a quest for a historical collection and, at that same time, others were looking to preserve the

Whirlwind A whirlwind is a weather phenomenon in which a vortex of wind (a vertically oriented rotating column of air) forms due to instabilities and turbulence created by heating and flow (current) gradients. Whirlwinds occur all over the world and i ...

computer. The resulting ''Museum Project'' had its first exhibit in 1975, located in a converted coat closet in a DEC lobby. In 1978, the museum, now ''The Digital Computer Museum'' (TDCM), moved to a larger DEC lobby in Marlborough, Massachusetts. Maurice Wilkes presented the first lecture at TDCM in 1979 – the presentation of such lectures has continued to the present time. TDCM incorporated as '' The Computer Museum'' (TCM) in 1982. In 1984, TCM moved to

Boston Boston (), officially the City of Boston, is the state capital and most populous city of the Commonwealth of Massachusetts, as well as the cultural and financial center of the New England region of the United States. It is the 24th- mo ...

, locating on

Museum Wharf Children's Wharf (until recently known as Museum Wharf) is a wharf on Congress Street in Boston, Massachusetts, on the Fort Point Channel with views of the Financial District and Boston Harbor. The wharf has sitting areas, patches of lawn, and se ...

. In 1996/1997, the TCM History Center (TCMHC) was established; a site at

Moffett Field Moffett Federal Airfield , also known as Moffett Field, is a joint civil-military airport located in an unincorporated part of Santa Clara County, California, United States, between northern Mountain View and northern Sunnyvale. On November 10 ...

was provided by

NASA The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the civil space program, aeronautics research, and space research. NASA was established in 1958, succeeding t ...

(an old building that was previously the Naval Base furniture store) and a large number of artifacts were shipped there from TCM. In 1999, TCMHC incorporated and TCM ceased operation, shipping its remaining artifacts to TCMHC in 2000. The name TCM had been retained by the

Boston Museum of Science The Museum of Science (MoS) is a science museum and indoor zoo in Boston, Massachusetts, located in Science Park, a plot of land spanning the Charles River. Along with over 700 interactive exhibits, the museum features a number of live presentat ...

so, in 2000, the name TCMHC was changed to ''Computer History Museum'' (CHM). In 2002, CHM opened its new building, previously occupied by

Silicon Graphics Silicon Graphics, Inc. (stylized as SiliconGraphics before 1999, later rebranded SGI, historically known as Silicon Graphics Computer Systems or SGCS) was an American high-performance computing manufacturer, producing computer hardware and sof ...

, at 1401 N. Shoreline Blvd in Mountain View, California, to the public. The facility was later heavily renovated and underwent a two-year $19 million makeover before reopening in January 2011. John Hollar, a former media executive, was appointed CEO in July 2008. Dan'l Lewin, a former technology executive, replaced Hollar as CEO in March 2018.

Collections and exhibition space

Difference Engine Computer History Museum - Aug 2015

The Computer History Museum claims to house the largest and most significant collection of computing artifacts in the world. This includes many rare or one-of-a-kind objects such as a Cray-1 supercomputer as well as a

Cray-2 The Cray-2 is a supercomputer with four vector processors made by Cray Research starting in 1985. At 1.9 GFLOPS peak performance, it was the fastest machine in the world when it was released, replacing the Cray X-MP in that spot. It was, i ...

Cray-3 The Cray-3 was a vector supercomputer, Seymour Cray's designated successor to the Cray-2. The system was one of the first major applications of gallium arsenide (GaAs) semiconductors in computing, using hundreds of custom built ICs packed into ...

, the

Utah teapot The Utah teapot, or the Newell teapot, is a 3D test model that has become a standard reference object and an in-joke within the computer graphics community. It is a mathematical model of an ordinary Melitta-brand teapot that appears solid w ...

, the 1969

Neiman Marcus Neiman Marcus Group, Inc. is an American integrated luxury retailer headquartered in Dallas, Texas, which owns Neiman Marcus, Bergdorf Goodman, Horchow, and Last Call. Since September 2021, NMG has been owned by a group of investment compani ...

Kitchen Computer The Honeywell 316 was a popular 16-bit minicomputer built by Honeywell starting in 1969. It is part of the Series 16, which includes the Models 116 (1965, discrete), 316 (1969), 416 (1966), 516 (1966) and DDP-716 (1969). They were commonly used f ...

, an

Apple I The Apple Computer 1, originally released as the Apple Computer and known later as the Apple I or Apple-1, is an 8-bit desktop computer released by the Apple Computer Company (now Apple Inc.) in 1976. It was designed by Steve Wozniak. The i ...

, and an example of the first generation of

Google Google LLC () is an American multinational technology company focusing on search engine technology, online advertising, cloud computing, computer software, quantum computing, e-commerce, artificial intelligence, and consumer electronics. ...

's racks of custom-designed

web server A web server is computer software and underlying hardware that accepts requests via HTTP (the network protocol created to distribute web content) or its secure variant HTTPS. A user agent, commonly a web browser or web crawler, initiate ...

s. The collection comprises nearly 90,000 objects, photographs and films, as well as of cataloged documentation and several hundred gigabytes of software. The CHM oral history program conducts video interviews around the history of computing, This includes computer systems, networking, data-processing,

memory Memory is the faculty of the mind by which data or information is encoded, stored, and retrieved when needed. It is the retention of information over time for the purpose of influencing future action. If past events could not be remembered, ...

, and data-storage. There are over 1,000 interviews recorded as of 2021, including panel discussions on the origins of the IBM PC and the

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 ...

, and individual interviews with

Joanna Hoffman Joanna Karine Hoffman (born July 27, 1955) is a Polish-American marketing executive. She was one of the original members of both the Apple Computer Macintosh team and the NeXT team. At the time she began at Apple Computer, the Mac was "still a r ...

, Steve Chen, Dame Stephanie Shirley, and

Donald Knuth Donald Ervin Knuth ( ; born January 10, 1938) is an American computer scientist, mathematician, and professor emeritus at Stanford University. He is the 1974 recipient of the ACM Turing Award, informally considered the Nobel Prize of computer sc ...

. The museum's exhibit "Revolution: The First 2000 Years of Computing," opened to the public on January 13, 2011. It covers the history of computing in 20 galleries, from the

abacus The abacus (''plural'' abaci or abacuses), also called a counting frame, is a calculating tool which has been used since ancient times. It was used in the ancient Near East, Europe, China, and Russia, centuries before the adoption of the Hi ...

to the

Internet The Internet (or internet) is the global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices. It is a '' network of networks'' that consists of private, pub ...

. The entire exhibition is also available online. The museum has a

Liquid Galaxy The Liquid Galaxy is an open source project founded by Google. Created in 2008 by Google employee Jason Holt, the Liquid Galaxy started out as a panoramic multi-display Google Earth viewer, but has evolved to become a general data visualization ...

in the "Going Places: A History of Silicon Valley" exhibit. The exhibit has 20 preselected locations that visitors can fly to on the Liquid Galaxy. Other exhibits include a restoration of an historic

PDP-1 The PDP-1 (''Programmed Data Processor-1'') is the first computer in Digital Equipment Corporation's PDP series and was first produced in 1959. It is famous for being the computer most important in the creation of hacker culture at Massachusett ...

minicomputer, two restored

IBM 1401 The IBM 1401 is a variable-wordlength decimal computer that was announced by IBM on October 5, 1959. The first member of the highly successful IBM 1400 series, it was aimed at replacing unit record equipment for processing data stored on pu ...

computers, and an exhibit on the history of

autonomous vehicles Vehicular automation involves the use of mechatronics, artificial intelligence, and multi-agent systems to assist the operator of a vehicle (car, aircraft, watercraft, or otherwise).Hu, J.; Bhowmick, P.; Lanzon, A.,Group Coordinated Control o ...

, from

torpedo A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, and with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, s ...

es to

self-driving car A self-driving car, also known as an autonomous car, driver-less car, or robotic car (robo-car), is a car that is capable of traveling without human input.Xie, S.; Hu, J.; Bhowmick, P.; Ding, Z.; Arvin, F.,Distributed Motion Planning for S ...

s. An operating

Difference Engine A difference engine is an automatic mechanical calculator designed to tabulate polynomial, polynomial functions. It was designed in the 1820s, and was first created by Charles Babbage. The name, the difference engine, is derived from the method ...

designed by Charles Babbage in the 1840s and constructed by the Science Museum of London was on display until January 31, 2016. It had been on loan since 2008 from its owner,

Nathan Myhrvold Nathan Paul Myhrvold (born August 3, 1959), formerly Chief Technology Officer at Microsoft, is co-founder of Intellectual Ventures and the principal author of '' Modernist Cuisine'' and its successor books. Myhrvold was listed as co-inventor ...

, a former Microsoft executive.

Software

The CHM is also home to an extensive collection of software, curated by Al Kossow, a veteran of Apple Computer whom the museum hired in 2006. Kossow is responsible for preservation and accession of software in the museum, as well as for developing CHM's software-themed exhibitions. Kossow was a contributor to the museum long before being hired full-time and is the proprietor of Bitsavers, a large online

repository Repository may refer to: Archives and online databases * Content repository, a database with an associated set of data management tools, allowing application-independent access to the content * Disciplinary repository (or subject repository), an ...

of historical computer manuals and archived software and

firmware In computing, firmware is a specific class of computer software that provides the low-level control for a device's specific hardware. Firmware, such as the BIOS of a personal computer, may contain basic functions of a device, and may provide h ...

acquired from his own collection and through donations from his peers. In 2010 the museum began with the collection of

source code In computing, source code, or simply code, is any collection of code, with or without comments, written using a human-readable programming language, usually as plain text. The source code of a program is specially designed to facilitate the wo ...

of important software, beginning with

Apple An apple is an edible fruit produced by an apple tree (''Malus domestica''). Apple fruit tree, trees are agriculture, cultivated worldwide and are the most widely grown species in the genus ''Malus''. The tree originated in Central Asia, wh ...

MacPaint MacPaint is a raster graphics editor developed by Apple Computer and released with the original Macintosh personal computer on January 24, 1984. It was sold separately for US$195 with its word processing counterpart, MacWrite. MacPaint was nota ...

1.3, written in a combination of

Assembly Assembly may refer to: Organisations and meetings * Deliberative assembly, a gathering of members who use parliamentary procedure for making decisions * General assembly, an official meeting of the members of an organization or of their representa ...

and Pascal and available as download for the public. In 2012 the

APL programming language APL (named after the book ''A Programming Language'') is a programming language developed in the 1960s by Kenneth E. Iverson. Its central datatype is the multidimensional array. It uses a large range of special graphic symbols to represent mos ...

followed. In February 2013 Adobe Systems, Inc. donated the

Photoshop Adobe Photoshop is a raster graphics editor developed and published by Adobe Inc. for Windows and macOS. It was originally created in 1988 by Thomas and John Knoll. Since then, the software has become the industry standard not only in raster ...

1.0.1

to the collection. On March 25, 2014

Microsoft Microsoft Corporation is an American multinational technology corporation producing computer software, consumer electronics, personal computers, and related services headquartered at the Microsoft Redmond campus located in Redmond, Washing ...

followed with the source code donation of

SCP MS-DOS 1.25 86-DOS (known internally as QDOS, for Quick and Dirty Operating System) is a discontinued operating system developed and marketed by Seattle Computer Products (SCP) for its Intel 8086-based computer kit. 86-DOS shared a few of its commands w ...

and a mixture of

Altos MS-DOS 2.11 MS-DOS ( ; acronym for Microsoft Disk Operating System, also known as Microsoft DOS) is an operating system for x86-based personal computers mostly developed by Microsoft. Collectively, MS-DOS, its rebranding as IBM PC DOS, and a few oper ...

and

TeleVideo PC DOS 2.11 MS-DOS ( ; acronym for Microsoft Disk Operating System, also known as Microsoft DOS) is an operating system for x86-based personal computers mostly developed by Microsoft. Collectively, MS-DOS, its rebranding as IBM PC DOS, and a few oper ...

as well as

Word for Windows Microsoft Word is a word processor, word processing software developed by Microsoft. It was first released on October 25, 1983, under the name ''Multi-Tool Word'' for Xenix systems. Subsequent versions were later written for several other pla ...

1.1a under their own license. On October 21, 2014,

Xerox Alto The Xerox Alto is a computer designed from its inception to support an operating system based on a graphical user interface (GUI), later using the desktop metaphor. The first machines were introduced on 1 March 1973, a decade before mass-market ...

's source code and other resources followed.

Past exhibits

On June 23, 1990, the Walk-Through Computer exhibit opened to help visitors learn how computers work. The interactive exhibit included a desktop computer, a giant

monitor Monitor or monitor may refer to: Places * Monitor, Alberta * Monitor, Indiana, town in the United States * Monitor, Kentucky * Monitor, Oregon, unincorporated community in the United States * Monitor, Washington * Monitor, Logan County, West ...

, a 25-foot

keyboard Keyboard may refer to: Text input * Keyboard, part of a typewriter * Computer keyboard ** Keyboard layout, the software control of computer keyboards and their mapping ** Keyboard technology, computer keyboard hardware and firmware Music * Musi ...

, and a 40-inch diameter

trackball A trackball is a pointing device consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes—like an upside-down ball mouse with an exposed protruding ball. Users roll the ball to position the o ...

(initially planned to be a "bumper-car sized mouse") used by visitors to control the World Traveler program. In the Software Theater, animation and hardware video is used alongside a video feed of the World Traveler Program to show how computer programs work. This exhibit was closed on August 5, 1995, and re-opened as the Walk-Through Computer 2000 on October 21, 1995, to include an updated monitor, 3D graphics, and more interactive features. One of these features allowed visitors to change the pits imprinted on a giant

CD-ROM A CD-ROM (, compact disc read-only memory) is a type of read-only memory consisting of a pre-pressed optical compact disc that contains data. Computers can read—but not write or erase—CD-ROMs. Some CDs, called enhanced CDs, hold both comput ...

, and the changes are seen on a monitor.

Fellows

The CHM Fellows are men and women 'whose ideas have changed the world ndaffected nearly every human alive today'. The first fellow was Rear Admiral

Grace Hopper Grace Brewster Hopper (; December 9, 1906 – January 1, 1992) was an American computer scientist, mathematician, and United States Navy rear admiral. One of the first programmers of the Harvard Mark I computer, she was a pioneer of compu ...

in 1987. The fellows program has grown to 92 members as of 2022.

Notes

References

External links

* *
The Computer Museum Archive
{{Authority control Museums established in 1996 Buildings and structures in Mountain View, California Computer museums in California Museums in Santa Clara County, California 1996 establishments in California History of Silicon Valley Oral history