Tech & Science · 1971
Microprocessors, Mars Orbits, and the First Email
In 1971, humanity redefined computing and space exploration through groundbreaking silicon innovations and interplanetary firsts. From the birth of the commercial microprocessor to orbiters mapping Martian craters, technology raced boldly into a digital, interconnected future.
- Nov 15, 1971 | USA | Hardware
Intel 4004 Microprocessor
Intel released the world's first commercially available single-chip microprocessor, igniting the microcomputer revolution by putting a complete CPU on a single silicon chip.
- Late 1971 | ARPANET | Software
First Network Email Sent
Computer engineer Ray Tomlinson sent the first ARPANET email between two side-by-side computers, inventing the standard use of the '@' symbol in digital messaging addresses.
- April 19, 1971 | USSR | Spaceflight
Salyut 1 Space Station
The Soviet Union successfully launched Salyut 1 into low Earth orbit, inaugurating the era of long-term human space habitats.
- Nov 13, 1971 | NASA | Space Exploration
Mariner 9 Orbits Mars
NASA's Mariner 9 probe became the first spacecraft to orbit another planet, sending back thousands of detailed images of the Martian surface and its massive volcanoes.
- 1971 | IBM | Data Storage
IBM Commercial Floppy Disk
IBM introduced the read-only 8-inch floppy disk, revolutionizing data distribution by providing a lightweight, portable magnetic storage medium for computers.
- July 31, 1971 | NASA | Moon Mission
Apollo 15 Lunar Roving Vehicle
Astronauts David Scott and James Irwin became the first humans to drive a motorized vehicle on the Moon, greatly expanding the range of lunar surface exploration.
- Dec 2, 1971 | USSR | Space Exploration
Mars 3 Soft Landing
The Soviet Mars 3 lander achieved the first successful soft landing on Mars, transmitting a brief signal back to Earth despite a fierce planetary dust storm.
- January 1971 | Japan | Electronics
Busicom LE-120A Pocket Calculator
Busicom launched the HANDY LE-120A, the first truly pocket-sized electronic calculator featuring an LED display and integrated circuits.
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