MAC

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Mac,

 

Mc,

or

M'

[Irish,=son], element in names derived from Irish and Scottish Gaelic patronymics. In most of these names the second element was a forename (e.g., Macdonald, in various spellings). Other names included titles or epithets (e.g., McIntosh [son of the chief]). Notions that some forms of the prefix are more typically Scottish or Irish are fallacious. Some of the names, however, have typical local distribution; thus, McLeod is Hebridean, McSweeney is especially Irish. See OO,
15th letter of the alphabet. It is a usual symbol for a mid-back, rounded vowel, rather like the first part of oi. Such a vowel was represented by omicron [Gr.,=little o], its formal and positional correspondent in the Greek alphabet.
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; namename.
Personal identifying names are found in every known culture, and they often pass from one language to another. Hence the occurrence of Native American place names throughout the United States and the occurrence among American families of names of various linguistic origins
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.

MAC

(computer science)

MAC

(1)

MAC

(2)
Early system on Ferranti Mercury. Listed in CACM 2(5):16 (May 1959).

Mac

(3)

MAC

(1) For Apple's Mac computer, see Macintosh.

(2) For the built-in hardware ID, see MAC address.

(3) For the network protocol layer, see MAC layer.

(4) See moves-adds-changes and mandatory access control.

(5) (Multiplexed Analog Components) A video format that was analog video and digital audio. See HD analog formats.

(6) (Mission Assurance Category) See DOD cyberspace glossary.

(7) (Medicare Administrative Contractor) See healthcare IT.

(8) (Message Authentication Code) A number computed from the contents of a text message that is used to prove the integrity of a message. The MAC is a checksum that is computed using an algorithm based on the DES or AES ciphers, which use a secret key. The MAC is then sent with the message. The recipient recomputes the MAC at the other end using the same algorithm and secret key and compares it to the one that is sent. If they are the same, it is assumed that the message has not been tampered with.

A MAC is like a digital signature, except that a secret key is used rather than a private key. Also known as the U.S. Government Standard Data Authentication Code (FIPS PUB 113). See digital signature, cryptography, DES and AES.
References in periodicals archive ?
The post Centrify protects Mac endpoints appeared first on Tahawul Tech.
Developers, designers and power users are one of the biggest audiences among our millions of Parallels Desktop for Mac customers, said Jack Zubarev, Parallels president.
The couple began collaborating last year with MAC to produce the collection-from new and catchy shades such as Opera, Tenor Voice, Barbecue, Vixen and Venus Red, down to the makeups whimsical white and black packaging.
Apple Inc had been making Mac more affordable for its consumers in 2014.
The new features of eScan Anti-Virus Security for Mac ensure that Mac OS is protected against Malware and other security threats in real-time.
One in five Macs users who downloaded and scanned their system found Windows malware on Mac computers
'Cybercriminals view Macs as a soft target, because their owners don't typically run anti-virus software and are thought to have a higher level of disposable income than the typical Windows user.
Apple computers have long been considered invulnerable to viruses, but the Flashback virus, or botnet, was recently discovered on more than 600,000 Macs.
ADD a frill to your day with a beige frill front mac, right, also available in stone, pounds 65, Miss Selfridge.
The new version, which can be downloaded now from the Mac App Store, incorporates more than 250 new features including: new Multi-Touch gestures; system-wide support for full screen apps; Mission Control, a new view of everything running on the Mac; the Mac App Store built into the OS; Launchpad, a new home for all of the user's apps; and a completely redesigned Mail app.
In addition, some of the bad guys have ventured into the Mac realm, creating Mac-specific attacks like the recent MAC Defender.
On Apple's web page outlining security features in Snow Leopard the company discusses features that provide "Defense against viruses and malware," such as warnings when users open applications they have downloaded, a feature that has existed since Mac OS X 10.4.