A-1 Headline
A-1, (international name : A-1 Headline or Chinese name : A1頭條 or A1 tou tiao) is a 2004 Hong Kong thriller film directed by Gordon Chan and Kai Cheung Chung and produced by Fruit Chan.
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A1
A1, A-1 or A.1.may refer to:
Education
Grades
A-1 (SP-1370)
A-1 (SP-1370) was a converted houseboat used by the United States Navy during World War I. She was assigned the section patrol number SP-1370.
The A-1 was built in 1911 by Sillit Buchanan. Early in the war, the houseboat was inspected for possible naval service, and was taken over from F. E. Wright of San Pedro, California on 6 October 1917. The vessel was placed into service for the Navy on 30 December, 1917. She operated in the waters of southern California through the end of World War I. Her logs end on 9 December 1918. So far no record of the boat's subsequent fate has survived.
References
A-0 System
The A-0 system (Arithmetic Language version 0), written by Grace Hopper in 1951 and 1952 for the UNIVAC I, was the first compiler ever developed for an electronic computer. The A-0 functioned more as a loader or linker than the modern notion of a compiler. A program was specified as a sequence of subroutines and arguments. The subroutines were identified by a numeric code and the arguments to the subroutines were written directly after each subroutine code. The A-0 system converted the specification into machine code that could be fed into the computer a second time to execute the said program.
The A-0 system was followed by the A-1, A-2, A-3 (released as ARITH-MATIC), AT-3 (released as MATH-MATIC) and B-0 (released as FLOW-MATIC).
The A-2 system was developed at the UNIVAC division of Remington Rand in 1953 and released to customers by the end of that year. Customers were provided the source code for A-2 and invited to send their improvements back to UNIVAC. Thus A-2 was an early, and perhaps the first, example of free and open-source software.
List of A1 aircraft
This is a list of aircraft designated A1, A.1, A.I, A 1 or A-1:
Civilian aircraft
Military aircraft
A-1 (code)
A-1 was the designation for a code used by the United States Navy during World War I that replaced the Secret Code of 1887, SIGCODE and another system designed for radio communication. The cryptographic system was developed by Lt. W.W. Smith in the Office of Naval Operations by randomly associating key words with 5 letter patterns.
