ADA 音标拼音: ['edə]
n . 女子名
女子名
ADA n 1 :
an enzyme found in mammals that can catalyze the deamination of adenosine into inosine and ammonia ; "
ADA deficiency can lead to one form of severe combined immunodeficiency disease "; "
the gene encoding ADA was one of the earlier human genes to be isolated and cloned for study " [
synonym : {
adenosine deaminase }, {
ADA }]
(After {Ada Lovelace }) A {Pascal }-descended
language , designed by Jean Ichbiah 's team at {CII Honeywell }
in 1979 , made mandatory for Department of Defense software
projects by the Pentagon . The original language was
standardised as "Ada 83 ", the latest is "{Ada 95 }".
Ada is a large , complex , {block -structured } language aimed
primarily at {embedded } applications . It has facilities for
real -time } response , {concurrency }, hardware access and
reliable run -time error handling . In support of large -scale
software engineering }, it emphasises {strong typing }, {data
abstraction } and {encapsulation }. The type system uses {name
equivalence } and includes both {subtypes } and {derived types }.
Both fixed and {floating -point } numerical types are supported .
Control flow } is fully bracketed : if -then -elsif -end if ,
case -is -when -end case , loop -exit -end loop , goto . Subprogram
parameters are in , out , or inout . Variables imported from
other packages may be hidden or directly visible . Operators
may be {overloaded } and so may {enumeration } literals . There
are user -defined {exceptions } and {exception handlers }.
An Ada program consists of a set of packages encapsulating
data objects and their related operations . A package has a
separately compilable body and interface . Ada permits
generic packages } and subroutines , possibly parametrised .
Ada support {single inheritance }, using "tagged types " which
are types that can be extended via {inheritance }.
Ada programming places a heavy emphasis on {multitasking }.
Tasks are synchronised by the {rendezvous }, in which a task
waits for one of its subroutines to be executed by another .
The conditional entry makes it possible for a task to test
whether an entry is ready . The selective wait waits for
either of two entries or waits for a limited time .
Ada is often criticised , especially for its size and
complexity , and this is attributed to its having been designed
by committee . In fact , both Ada 83 and Ada 95 were designed
by small design teams to be internally consistent and tightly
integrated . By contrast , two possible competitors , {Fortran
90 } and {C } have both become products designed by large and
disparate volunteer committees .
See also {Ada /Ed }, {Toy /Ada }.
Home of the Brave Ada Programmers
http ://lglwww .epfl .ch /Ada /)}. {Ada FAQs
http ://lglwww .epfl .ch /Ada /FAQ /)} (hypertext ), {text only
ftp ://lglftp .epfl .ch /pub /Ada /FAQ )}.
http ://wuarchive .wustl .edu /languages /ada /)},
ftp ://ajpo .sei .cmu .edu /)},
ftp ://stars .rosslyn .unisys .com /pub /ACE_8 .0 )}.
E -mail : .
Usenet } newsgroup : {news :comp .lang .ada }.
An Ada grammar (ftp ://primost .cs .wisc .edu /)} including a lex
scanner and yacc parser is available . E -mail :
.
Another yacc grammar and parser for Ada by Herman Fischer
ftp ://wsmr -simtel20 .army .mil /PD2 :GRAM2 .SRC )}.
An {LR parser } and {pretty -printer } for {Ada } from NASA is
available from the {Ada Software Repository }.
Adamakegen } generates {makefiles } for {Ada } programs .
Reference Manual for the Ada Programming Language ", ANSI /MIL
STD 1815A , US DoD (Jan 1983 )]. Earlier draft versions
appeared in July 1980 and July 1982 . ISO 1987 .
Jargon File }]
2000 -08 -12 )Automatic Data Acquisitions Ada ,
OH --
U .
S .
village in Ohio Population (
2000 ):
5582 Housing Units (
2000 ):
1948 Land area (
2000 ):
1 .
871428 sq .
miles (
4 .
846975 sq .
km )
Water area (
2000 ):
0 .
000000 sq .
miles (
0 .
000000 sq .
km )
Total area (
2000 ):
1 .
871428 sq .
miles (
4 .
846975 sq .
km )
FIPS code :
00198 Located within :
Ohio (
OH ),
FIPS 39 Location :
40 .
768883 N ,
83 .
822298 W ZIP Codes (
1990 ):
45810 Note :
some ZIP codes may be omitted esp .
for suburbs .
Headwords :
Ada ,
OH Ada
Ada ,
OK --
U .
S .
city in Oklahoma Population (
2000 ):
15691 Housing Units (
2000 ):
7472 Land area (
2000 ):
15 .
701331 sq .
miles (
40 .
666259 sq .
km )
Water area (
2000 ):
0 .
071505 sq .
miles (
0 .
185198 sq .
km )
Total area (
2000 ):
15 .
772836 sq .
miles (
40 .
851457 sq .
km )
FIPS code :
00200 Located within :
Oklahoma (
OK ),
FIPS 40 Location :
34 .
763661 N ,
96 .
668214 W ZIP Codes (
1990 ):
74820 Note :
some ZIP codes may be omitted esp .
for suburbs .
Headwords :
Ada ,
OK Ada
Ada ,
MN --
U .
S .
city in Minnesota Population (
2000 ):
1657 Housing Units (
2000 ):
835 Land area (
2000 ):
1 .
342312 sq .
miles (
3 .
476572 sq .
km )
Water area (
2000 ):
0 .
000000 sq .
miles (
0 .
000000 sq .
km )
Total area (
2000 ):
1 .
342312 sq .
miles (
3 .
476572 sq .
km )
FIPS code :
00172 Located within :
Minnesota (
MN ),
FIPS 27 Location :
47 .
298701 N ,
96 .
515796 W ZIP Codes (
1990 ):
Note :
some ZIP codes may be omitted esp .
for suburbs .
Headwords :
Ada ,
MN Ada
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Americans with Disabilities Act of 1990, As Amended - ADA. gov Law, Regulations Standards - ADA. gov Introduction to the Americans with Disabilities Act - ADA. gov Guide to Disability Rights Laws - ADA. gov ADA Standards for Accessible Design Guidance Resource Materials - ADA. gov Topics | ADA. gov ADA Information Line | ADA. gov Guidance on Web Accessibility and the ADA Service Animals - ADA. gov