AL1 may refer to: *

Four-Phase Systems AL1 Four-Phase Systems was a computer company, founded by Lee Boysel and others, which built one of the earliest computers using semiconductor main memory and MOS LSI logic. The company was incorporated in February 1969 and had moderate commercial ...

, the first microprocessor (1969), produced by Four-Phase Systems * AL1, original designation of

British Rail Class 81 The British Rail Class 81 is a class of Alternating current, AC electric locomotives that formerly operated on the West Coast Main Line of the London Midland Region of British Rail. Originally designated AL1, it was the first type of AC electric ...

* A designation for

main-belt asteroid The asteroid belt is a torus-shaped region in the Solar System, located roughly between the orbits of the planets Jupiter and Mars. It contains a great many solid, irregularly shaped bodies, of many sizes, but much smaller than planets, called ...

s * AL1, a postcode district in the

AL postcode area The AL postcode area, also known as the St Albans postcode area,Royal Mail, ''Address Management Guide'', (2004) is a group of ten postcode districts in England, within five post towns. These cover central Hertfordshire, including St Albans, H ...

* Al1, a 2017 EP by

Seventeen Seventeen or 17 may refer to: *17 (number), the natural number following 16 and preceding 18 * one of the years 17 BC, AD 17, 1917, 2017 Literature Magazines * ''Seventeen'' (American magazine), an American magazine * ''Seventeen'' (Japanese m ...

See also