Museum of the Human Inventions
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MHI 089 · Exhibition

The Microprocessor

1971

Documented date

Santa Clara, California, United States

Associated with

Federico Faggin
Led the chip design
Ted Hoff and Stanley Mazor
Defined the architecture
Masatoshi Shima
Worked on the logic design for Busicom

Plate 089

1971

Santa Clara, California, United States

No photograph is shown for this exhibition. The museum displays an image only where it can show the object honestly.

About this date

Intel released the 4004 in November 1971. Its design team included Federico Faggin, Ted Hoff, Stanley Mazor and Masatoshi Shima.

About credit

The chip was designed for the Japanese calculator company Busicom. Other early processor designs existed for military and aerospace uses.

Chapter I

The world before

Life before the Microprocessor

Computers had processors built from many separate parts, the size of cabinets.

The human achievement

How it came about

The 4004 had about 2,300 transistors and ran at 740 kHz. Intel’s 8080 (1974) powered early personal computers, and the 8086 family became the basis of the PC. Apple, Commodore and others used rival designs.

Understanding the invention

How it works

The Microprocessor, explained in two steps.

Step 01 of 02

Fetch, decode, execute

The processor reads an instruction, works out what it means and does it, billions of times a second.

IV

The transformation

What changed for humanity

  1. Personal computing

    Individuals and small firms could own computers.

  2. Everyday devices

    Embedded chips control cars, washing machines and medical devices.

Cheap, programmable processors went into computers, cars, appliances and phones.

Before and after

Life before and after The Microprocessor

Before

A large institution.

After

A desktop machine at home.

On larger screens, drag the divider (or use the arrow keys) to give more room to the world before or after.

VI

Its legacy

What came after

MHI 089

The Microprocessor

VII

Human stories

The people and the moments

A calculator order

Intel retained rights to the design in a renegotiation with Busicom, which allowed it to sell the chip widely.

Where accounts differ, this museum follows the documented record and says so.

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