最終更新日：2025/12/06
(computing) An EPIC 64-bit instruction set architecture designed to allow relatively simple, cheap CPUs to execute many 64-bit instructions simultaneously and with potentially very high performance; developed by Intel in the late 1990s with the intent of replacing the older x86 architecture, but was delayed and proved uncompetitive with x86 (especially x86-64), seeing use only in Intel's own Itanium line of high-end CPUs.
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IA-64
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元となった辞書の項目
IA-64
名詞
(computing)
An
EPIC
64-bit
instruction
set
architecture
designed
to
allow
relatively
simple,
cheap
CPUs
to
execute
many
64-bit
instructions
simultaneously
and
with
potentially
very
high
performance;
developed
by
Intel
in
the
late
1990s
with
the
intent
of
replacing
the
older
x86
architecture,
but
was
delayed
and
proved
uncompetitive
with
x86
(especially
x86-64),
seeing
use
only
in
Intel's
own
Itanium
line
of
high-end
CPUs.
日本語の意味
IA-64は、比較的シンプルで安価なCPUが多数の64ビット命令を同時に高いパフォーマンスで実行できるように設計された、EPIC（Explicitly Parallel Instruction Computing）アーキテクチャに基づく64ビット命令セットである。 / 1990年代後半にIntelによって、従来のx86アーキテクチャの代替として開発されたが、開発の遅延や市場での競争力不足（特にx86-64に対して）により、最終的にはIntelのItaniumシリーズの高性能CPUでのみ採用された。
意味（1）
(computing)
An
EPIC
64-bit
instruction
set
architecture
designed
to
allow
relatively
simple,
cheap
CPUs
to
execute
many
64-bit
instructions
simultaneously
and
with
potentially
very
high
performance;
developed
by
Intel
in
the
late
1990s
with
the
intent
of
replacing
the
older
x86
architecture,
but
was
delayed
and
proved
uncompetitive
with
x86
(especially
x86-64),
seeing
use
only
in
Intel's
own
Itanium
line
of
high-end
CPUs.
