英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

MAC    音标拼音: [m'æk]
媒体接入控制,媒体访问控制,介质访问控制

媒体接入控制,媒体访问控制,介质访问控制

mac
n 1: a waterproof raincoat made of rubberized fabric [synonym:
{macintosh}, {mackintosh}, {mac}, {mack}]

mac \mac\ n.
Shortened form of {mackintosh}, a waterproof raincoat made of
rubberized fabric.

Syn: mackintosh, mac, mack.
[WordNet 1.5]


Mac \Mac\ prop. n.
Shortened form of {Macintosh}, a brand name for a personal
computer; as, the latest Mac has great new features.
[PJC]


Mac \Mac\ [Gael., son.]
A prefix, in names of Scotch origin, signifying son.
[1913 Webster]

The line of computers manufactured by {Apple Inc}.
"Mac" is not primarily a nickname or an abbreviation, but a
brand name and trademark in its own right. Apple currently
(2009) refer to the brand as any of "Mac", "iMac" or
"Macintosh" (all registered trademarks).

The Mac was Apple's successor to the {Lisa}. The project was
proposed by {Jef Raskin} some time before {Steve Jobs}'s
famous visit to {Xerox PARC}. Jobs tried to scuttle the
Macintosh project and only joined it later because he wasn't
trusted to manage the {Lisa} project.

The {Macintosh user interface} was notable for popularising
the {graphical user interface}, with its easy to learn and
easy to use {desktop} metaphor.

The first Macintosh, introduced in January 1984, had a
{Motorola 68000} {CPU}, 128K of {RAM}, a small {monochrome}
screen, and one built-in {floppy disk} drive with an external
slot for one more, two {serial ports} and a four-voice sound
generator. This was all housed in one small plastic case,
including the screen. When more memory was available later in
the year, a 512K Macintosh was nicknamed the "Fat Mac."

The Mac Plus (January 1986) added expandability by providing
an external {SCSI} port for connecting {hard disks}, {magnetic
tape}, and other high-speed devices.

The Mac SE (March 1987) had up to four megabytes of {RAM}, an
optional built-in 20 megabyte hard disk and one internal
expansion slot for connecting a third-party device.

The Mac II (March 1987) used the faster {Motorola 68020} {CPU}
with a 32-bit {bus}.

In 1994 the {Power Mac} was launched, and in 1999 the {iMac}
was introduced. The {SuperDrive} appeared in the iMac in 2002.

The {Macintosh Operating System} is now officially called "Mac
OS". Mac OS X is the successor to Mac OS 9, although its
technological parent is the {NEXTSTEP} OS from {Next, Inc.},
founded by Steve Jobs after he left Apple the first time. OS
X is based largely on the {BSD} UNIX system. The core of the
OS X operating system is released as free {source code} under
the project name {Darwin}.

The standard Macintosh screen {resolution} is 72 {dpi} (making
one {point} = one {pixel}), exactly half the 144 dpi
resolution of the ancient {Apple Imagewriter} {dot matrix}
printer.

If "Macintosh" were an acronym, some say it would stand for
"Many Applications Crash, If Not, The Operating System Hangs".
While this was true for pre Mac OS 9 systems, it is less true
for Mac OS 9, and totally incorrect for Mac OS X, which has
protected memory, so even if one application crashes, the
system and other applications are unaffected.

See also {Macintosh file system}, {Macintosh user interface}.

{Apple Home (http://apple.com/mac)}.

(2009-05-05)


请选择你想看的字典辞典：
单词字典翻译
MAC查看　MAC　在百度字典中的解释百度英翻中〔查看〕
MAC查看　MAC　在Google字典中的解释Google英翻中〔查看〕
MAC查看　MAC　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • MAC Cosmetics | Beauty and Makeup Products - Official Site
    Offering more than 100 shades of professional quality cosmetics for All Ages, All Races, and All Genders Free shipping available with orders $35+
  • Mac - Apple
    The most powerful Mac laptops and desktops ever Supercharged by Apple silicon MacBook Air, MacBook Pro, iMac, Mac mini, Mac Studio, and Mac Pro
  • Apple MacBook: Air, Pro, and Retina Display - Best Buy
    Apple laptops are separated into two main types: the MacBook Air and the MacBook Pro While both families include some of the highest-performing laptop models on the market, the Air focuses on packaging quality features in a lightweight design while the Pro targets the data and graphics-heavy needs of professionals who work with visual content or run complex programs
  • Mac - Official Apple Support
    Learn how to set up and use your Mac computer Find all the topics, resources, and contact options you need for Mac
  • MacBook | Costco
    Find a great collection of MacBooks at Costco Enjoy low warehouse prices on name-brand MacBooks products
  • Deals: M4 Mac mini all-time low, M4 Max Mac Studio, more 9to5Mac
    M4 Mac mini with 24GB RAM 512GB SSD just dropped even lower to $849 ($150 off), more from $499 Apple’s latest M4 Max Mac Studio is now $200 off with deals starting from $1,799 Rare deal has 32GB
  • Buy Mac - Apple
    Shop the latest Mac models and accessories Customize your Mac today Save with Apple Trade In and flexible monthly payment options Get online help
  • MAC New Makeup Collections | MAC Cosmetics - Official Site
    Explore new MAC collections, collaborations, and products and experience the latest in makeup artistry Free shipping on the latest makeup collections
  • Mac Specs, Prices, Answers and Comparison: EveryMac. com, Est. 1996
    EveryMac com provides comprehensive Mac specs, in-depth answers to hundreds of Mac questions, detailed Mac identification info, and popular dates in Mac history It also has tools to compare Macs side-by-side, sort Macs by details, lookup Macs by serial number and other identifiers, and much more
  • Apple Mac - Best Buy
    Shop Best Buy's Apple brand store for great prices on a new or refurbished Mac Pro, MacBook, iMac and Mac mini





中文字典-英文字典  2005-2009