Invicta Electronic Master Mind Electronic Game
date: label: date made
content: 1979-1980
name: label: maker
content: Invicta Plastics, Ltd.
notes: label: Description
content: By the late 1970s, some manufacturers designed electronic versions of popular board games. Israeli postmaster Mordecai Meirovitz displayed his design of the logic game later dubbed Master Mind at the 1971 Nuremberg Toy Fair, where the English firm Invicta Plastics purchased the rights. Invicta soon had a display of the game under production, receiving national and international recognition.
label: Description
content: The original board game Master Mind has two players, the codemaker and the codebreaker. The codemaker selects an arrangement of four balls from a choice of six colors, and arranges these in a compartment below the board. The codebreaker selects an arrangement of four balls, places it on the board, and learns how many balls are in the correct position and how many are the correct color but misplaces. Guessing again, the codebreaker can narrow his or her choices.
label: Description
content: In 1976 computer scientist Donald Knuth of Stanford University published analysis of the game in which he argued that the codebreaker could always succeed in five moves or fewer. The following year, Invicta released an electronic form of the game. The colored balls were replaced by an array of up to five digits (a code of 3, 4, or 5 digits could be set). These could be selected by the machine or entered by a codemaker. The vacuum fluorescent display not only shows up to five digits but has columns marked with a check mark and an X.
label: Description
content: In front of the display is an array of ten red digit keys for entering digits. Next to these is a column with SET, TRY, FAIL, and CLEAR keys. A mark behind the display reads: Invicta (/) ELECTRONIC MASTER MIND. A hole at the top is for a power adapter.
label: Description
content: Text at the bottom of the back reads: INVICTA [. . .] 1977 (/) PATENTS APP FOR (/) DESIGNED IN ENGLAND (/) MICROPROCESSOR – USA (/) MADE IN HONG KONG. A sticker on the inside of the battery case shows how two AA batteries are installed. Text at the bottom of this sticker reads: ERL 278309.
label: Description
content: A square of Velcro on the back of the calculator holds it to a plastic wallet. There is room for a pencil and score sheets, but this example lacks them.
label: Description
content: The black plastic cover is marked on the front: Invicta (/) ELECTRONIC (/) MASTER MIND.
label: Description
content: Mordecai Meirovitz applied for a German patent for a board game in 1979, received it that year, and assigned it to Invicta Patents. He applied for a similar patent in the United States the same year, received in 1980, and assigned it to Invicta Plastics. These patents are for a somewhat different aspect of Master Mind. They suggest that this example of Electronic Master Mind is from 1979-1980.
label: Description
content: References:
label: Description
content: Alexander, Ron, “Mickey, Teddy and Barbie Hold Court at the Toy Fair,” <I>New York Times</I>, February 17. 1978, p. 84. Alexander mentions that Invicta Plastics “will be introducing a hand-held Electronic MasterMind [<I>sic</I>.”
label: Description
content: Kelly, Amanda, “The Real Mr Mastermind [<I>sic</I>] Comes Out to Play,” <I>The Independent</I>, November 4, 1997.
label: Description
content: Knuth, Donald E. “The Computer as Master Mind,” <I> Journal of Recreational Mathematics</I>, 9 (1), 1976, pp. 1–6.
label: Description
content: Meirovitz, Mordecai, “Brettspiel,” German Patent No. DE7900843, May 23, 1979.
label: Description
content: Meirovitz, Mordecai, “Board Game,” U.S. Patent No. 4241923A, December 30, 1980.
label: Description
content: “Turned on toys,” <I>Starlog Magazine</I>, issue 23, June 1979, p. 12. Here Electronic Master Mind is discussed as a new toy.
label: Location
content: Currently not on view
place: label: place made
content: China: Hong Kong
setName: label: See more items in
content: Medicine and Science: Computers
label: See more items in
content: Computers & Business Machines
label: See more items in
content: Handheld Electronic Calculators
creditLine: label: Credit Line
content: Gift of John B. Priser
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1986.0988.267
label: catalog number
content: 1986.0988.267
label: accession number
content: 1986.0988
objectType: label: Object Name
content: electronic calculator
label: Object Name
content: electronic game
physicalDescription: label: Physical Description
content: plastic (case; display cover; keys; wallet material)
label: Physical Description
content: metal (circuitry material)
label: Physical Description
content: glass (display material)
label: Physical Description
content: paper (sticker material)
label: Measurements
content: overall: 3/4 in x 3 in x 5 13/32 in; 1.905 cm x 7.62 cm x 13.716 cm