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microprocessor    音标拼音: [m,ɑɪkropr'ɑsɛsɚ]
微处理器

微处理器

microprocessor
多元微处理机;多微处理机 MMP


microprocessor
微处理器; 微处理机 MICRO;MP


microprocessor
超级微处理器

microprocessor
微处理机

microprocessor
n 1: integrated circuit semiconductor chip that performs the
bulk of the processing and controls the parts of a system;
"a microprocessor functions as the central processing unit
of a microcomputer"; "a disk drive contains a
microprocessor to handle the internal functions of the
drive"

(Or "micro") A computer whose entire {CPU} is
contained on one (or a small number of) {integrated circuits}.

The important characteristics of a microprocessor are the
widths of its internal and external {address bus} and {data
bus} (and instruction), its {clock rate} and its {instruction
set}. Processors are also often classified as either {RISC}
or {CISC}.

The first commercial microprocessor was the {Intel 4004} which
appeared in 1971. This was the CPU member of a set of four
{LSI} {integrated circuits} called the MCS-4, which was
originally designed for use in a calculator but was marketed
as "programmable controller for logic replacement". The 4004
is referred to as a 4-bit microprocessor since it processed
only 4 bits of data at a time. This very short word size is
due mainly to the limitations imposed by the maximum
integrated circuit density then achievable.

As integrated circuit densities increased with the rapid
development of integrated circuit manufacturing technology,
the power and performance of the microprocessors also
increased. This is reflected in the increase in the CPU word
size to 4, 8, 16, and by mid-1980s, 32 bits. The smaller
microprocessors have relatively simple {instruction sets},
e.g., no {floating point} instructions, but they are
nevertheless suitable as controllers for a very wide range of
applications such as car engines and microwave ovens.

The {Intel 4004} was followed with, among others the {4040},
{8008}, {8080}, {8086}, {80186}, {80286}, {80386}, {486} and
{Pentium}. Other families include the {Motorola} {6800} and
{680x0} families, {National Semiconductor 16000} and {National
Semiconductor 32000}, {SPARC}, {ARM}, {MIPS}, {Zilog Z8000},
{PowerPC} and the {Inmos} {Transputer} family.

The larger, more recent microprocessors families have
gradually acquired most of the features of large computers.
As the microprocessor industry has matured, several families
of microprocessors have evolved into de facto industrial
standards with multiple manufacturers and numerous "support"
chips including {RAM}, {ROM}, {I/O controllers} etc.

A single chip microprocessor may include other components such
as memory ({RAM}, {ROM}, {PROM}), {memory management},
{caches}, {floating-point unit}, input/output ports and
timers. Such devices are also known as {microcontrollers}.

The one-chip microcomputer is in many respects, a landmark
development in computer technology because it reduces the
computer to a small, inexpensive, and easily replaceable
design component.

Microcomputers have given rise to a new class of
general-purpose machines called {personal computers}. These
are small low cost computers that are designed to sit on an
ordinary office desk or to be portable and fuelled the
computer boom of the late 1980s. The most widespread example
is the also {IBM PC}, based on microprocessors from {Intel
Corporation}. {Apple Computers, Inc.} have also produced a
range of personal computers, as have several other companies.

See also {killer micro}, {minicomputer}, {CPU Info Center}.

(2002-07-16)


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  • Subutex Uses, Dosage, Side Effects Warnings - Drugs. com
    Subutex sublingual tablets are used to treat opioid addiction, also known as opioid use disorder (OUD) Other forms of buprenorphine are used to treat moderate to severe pain
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    In the European Union, Subutex and Suboxone, buprenorphine's high-dose sublingual tablet preparations, were approved for opioid use disorder treatment in September 2006 [109]
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    Buprenorphine sublingual tablet is used to treat opioid use disorder When an opioid medicine is used for a long time, it may become habit-forming, causing mental or physical dependence Physical dependence may lead to withdrawal side effects if the opioid is stopped suddenly
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    SUBUTEX, contains buprenorphine, a partial opioid agonist, and is indicated for the treatment of opioid dependence and is preferred for induction
  • Buprenorphine (Subutex) and Buprenorphine-naloxone (Suboxone) - OHSU
    Buprenorphine is a partial opioid agonist, meaning that it partially activates the opioid receptors This helps decrease withdrawal, decrease craving, and stabilize the opioid receptors so that people can focus on recovery Buprenorphine can be given alone (Subutex)
  • Is Subutex Safe To Use? - Addiction Group
    Subutex contains the active ingredient Buprenorphine HCL (Hydrochloride) and is commonly used in FDA-approved treatments for opioid dependence Since Buprenorphine is a partial agonist of opioid receptors, it has a lesser risk of causing adverse effects from higher doses
  • Buprenorphine (Belbuca, Buprenex): Uses, Side Effects . . . - WebMD
    Overview: Buprenorphine is used to treat opioid use disorder or to help manage severe pain It works by partially activating the same receptors in your body that opioids do Common side effects
  • Buprenorphine Sublingual Tablets: Uses Side Effects
    Take this medication by mouth Take it as directed on the prescription label at the same time every day You do not need water to take this medication The medication is placed under the tongue and allowed to dissolve Be sure to take the right dose





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