mainframe 音标拼音: [m'enfr
, em]
n . 主机
主机
mainframe 大型电脑; 主机( 柜 ); 大型机
mainframe 主机 大型电脑
mainframe n 1 :
a large digital computer serving 100 -
400 users and occupying a special air -
conditioned room [
synonym : {
mainframe },
{
mainframe computer }]
2 : (
computer science )
the part of a computer (
a microprocessor chip )
that does most of the data processing ; "
the CPU and the memory form the central part of a computer to which the peripherals are attached " [
synonym : {
central processing unit },
{
CPU }, {
C .
P .
U .}, {
central processor }, {
processor },
{
mainframe }]
mainframe \
main "
frame `\
n . (
Computers )
1 .
A large digital computer serving 100 -
400 users and occupying a special air -
conditioned room .
At any given point in development of computer technology ,
the mainframe will be faster ,
have large main memeory ,
and be more capable than a {
minicomputer },
which will in turn be faster and more capable than a {
personal computer }.
The typical personal computer in 1999 is faster than a mainframe was in 1970 .
Syn :
mainframe computer .
[
WordNet 1 .
5 PJC ]
2 .
The board holding the CPU and the memory forming the central part of a computer to which the peripherals are attached .
[
WordNet 1 .
5 ]
A term originally referring to the cabinet
containing the central processor unit or "main frame " of a
room -filling {Stone Age } batch machine . After the emergence
of smaller "{minicomputer }" designs in the early 1970s , the
traditional {big iron } machines were described as "mainframe
computers " and eventually just as mainframes . The term
carries the connotation of a machine designed for batch rather
than interactive use , though possibly with an interactive
time -sharing } operating system retrofitted onto it ; it is
especially used of machines built by {IBM }, {Unisys } and the
other great {dinosaurs } surviving from computing 's {Stone
Age }.
It has been common wisdom among hackers since the late 1980s
that the mainframe architectural tradition is essentially dead
outside of the tiny market for {number crunching }
supercomputers } (see {Cray })), having been swamped by the
recent huge advances in {integrated circuit } technology and
low -cost personal computing . As of 1993 , corporate America is
just beginning to figure this out - the wave of failures ,
takeovers , and mergers among traditional mainframe makers have
certainly provided sufficient omens (see {dinosaurs mating }).
Supporters claim that mainframes still house 90 % of the data
major businesses rely on for mission -critical applications ,
attributing this to their superior performance , reliability ,
scalability , and security compared to microprocessors .
Jargon File }]
1996 -07 -22 )mainframe :
n .
Term originally referring to the cabinet containing the central processor unit or ‘
main frame ’
of a room -
filling Stone Age batch machine .
After the emergence of smaller minicomputer designs in the early 1970s ,
the traditional big iron machines were described as ‘
mainframe computers ’
and eventually just as mainframes .
The term carries the connotation of a machine designed for batch rather than interactive use ,
though possibly with an interactive timesharing operating system retrofitted onto it ;
it is especially used of machines built by IBM ,
Unisys ,
and the other great dinosaurs surviving from computing '
s Stone Age .
It has been common wisdom among hackers since the late 1980s that the mainframe architectural tradition is essentially dead (
outside of the tiny market for number -
crunching supercomputers having been swamped by the recent huge advances in IC technology and low -
cost personal computing .
The wave of failures ,
takeovers ,
and mergers among traditional mainframe makers in the early 1990s bore this out .
The biggest mainframer of all ,
IBM ,
was compelled to re -
invent itself as a huge systems -
consulting house . (
See dinosaurs mating and killer micro ).
However ,
in yet another instance of the cycle of reincarnation ,
the port of Linux to the IBM S /
390 architecture in 1999 —
assisted by IBM —
produced a resurgence of interest in mainframe computing as a way of providing huge quantities of easily maintainable ,
reliable virtual Linux servers ,
saving IBM '
s mainframe division from almost certain extinction .
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