Generic top-level domain

Generic top-level domains (gTLDs) are one of the categories of top-level domains (TLDs) maintained by the Internet Assigned Numbers Authority (IANA) for use in the Domain Name System of the Internet. A top-level domain is the last label of every fully qualified domain name. They are called generic for historic reasons; initially, they were contrasted with country-specific TLDs in RFC 920.

The core group of generic top-level domains consists of the com, info, net, and org domains. In addition, the domains biz, name, and pro are also considered generic; however, these are designated as restricted, because registrations within them require proof of eligibility within the guidelines set for each.

Historically, the group of generic top-level domains included domains, created in the early development of the domain name system, that are now sponsored by designated agencies or organizations and are restricted to specific types of registrants. Thus, domains edu, gov, int, and mil are now considered sponsored top-level domains, much like the themed top-level domains (e.g., jobs). The entire group of domains that do not have a geographic or country designation (see country-code top-level domain) is still often referred to by the term generic TLDs.

Dance (Disco Heat)

"Dance (Disco Heat)" is the title of a 1978 single by American disco singer Sylvester James, who performed using just his first name, Sylvester. The song became Sylvester's first Top 40 hit in the US, where it peaked at #19 on the Billboard Hot 100 chart in the fall of 1978; it also reached #29 on the UK Singles Chart. The song appears on his 1978 album, Step II.

A 12" single was released in 1978, with "Dance (Disco Heat)" as the A-side and "You Make Me Feel (Mighty Real)" as the B-side, and these two extended dance mixes proved to be very popular in the dance clubs at the time. The two songs held down the top spot on the Billboard Dance/Disco chart for six weeks in August and September of that year and helped to establish Sylvester's career as a noted disco and dance music performer, both in the U.S. and abroad.

References

External links

Dance (surname)

Dance is a surname. Notable people with the surname include:

See also

Portal (architecture)

A portal is an opening in a wall of a building, gate or fortification, especially a grand entrance to an important structure.doors, metal gates or portcullis in the opening can be used to control entry or exit. The surface surrounding the opening may be made of simple building materials or decorated with ornamentation. The elements of a portal can include the voussoir, tympanum, an ornamented mullion or trumeau between doors, and columns with carvings of saints in the westwork of a church.

Examples

Baroque portal of a private Palace in Brescia

Baroque portal of a private Palace in Brescia

Portal of the Church of São Martinho de Cedofeita, with nested arches

Portal of the Church of São Martinho de Cedofeita, with nested arches

Gothic portal of the cathedral of Metz

Gothic portal of the cathedral of Metz

Portal of the church in Hronský Beňadik

Portal of the church in Hronský Beňadik

Other uses

The term portal is also applied to the ends of a tunnel.

Portal (video game)

Portal is a 2007 first-person puzzle-platform video game developed by Valve Corporation. The game was released in a bundle package called The Orange Box for Microsoft Windows and Xbox 360 on October 9, 2007, and for the PlayStation 3 on December 11, 2007. The Windows version of the game is available for download separately through Valve's content delivery system Steam and was released as a standalone retail product on April 9, 2008. A standalone version called Portal: Still Alive was released on the Xbox Live Arcade service on October 22, 2008; this version includes an additional 14 puzzles. An OS X version was released as part of the Mac-compatible Steam platform on May 12, 2010. A Linux version was released on Steam as a beta on May 2, 2013, and came out of beta on June 24, 2013. An Android port for the Nvidia Shield was released on May 12, 2014.

The game primarily comprises a series of puzzles that must be solved by teleporting the player's character and simple objects using "the Aperture Science Handheld Portal Device", a device that can create inter-spatial portals between two flat planes. The player-character, Chell, is challenged by an artificial intelligence named GLaDOS (Genetic Lifeform and Disk Operating System) to complete each puzzle in the Aperture Science Enrichment Center using the portal gun with the promise of receiving cake when all the puzzles are completed. The game's unique physics allows momentum to be retained through portals, requiring creative use of portals to maneuver through the test chambers. This gameplay element is based on a similar concept from the game Narbacular Drop; many of the team members from the DigiPen Institute of Technology who worked on Narbacular Drop were hired by Valve for the creation of Portal.

Portal (Magic: The Gathering)

Portal is the name given to the three Magic: The Gathering starter level sets. The original Portal. was released on May 1, 1997, followed by Portal Second Age on June 24, 1998 and Portal Three Kingdoms on July 6, 1999. The Portal set was inspired by Chinese mythology; Three Kingdoms in particular by Chinese historical novel Romance of the Three Kingdoms by Luo Guanzhong.

Set history

Portal was Wizards of the Coast's first major attempt at a set that new players could come into the game and understand. Back before the major rules changes brought forth by 6th Edition, Magic rules were more complicated; today, they are simplified with the addition of the stack. The three Portal sets attempted to mitigate the complexity.

As of October 2005, all cards Portal, Portal Second Age, and Portal Three Kingdoms are legal in Vintage and Legacy tournaments.

Three Kingdoms

On October 20, 2005, the DCI legalized cards from the Portal expansions. Now, almost all cards in the Portal block are legal in Vintage and Legacy tournaments. Allowing this set to be played in tournaments had the effect of making many cards from this set very expensive, such as Zodiac Dragon, Capture of Jingzhou, Loyal Retainers and Ravages of War. The value of those cards now often exceeds 250USD a piece, with its most sought-after card, Imperial Seal commanding well over 600USD. Many cards from this set are now worth more than 5USD, making the sealed booster box from this set one of the most expensive along with Alpha, Beta and Unlimited. In a tournament context, Three Kingdoms, like all other Portal sets, can only be used in Vintage and Legacy formats where many decks function with limited or no creature base. Three Kingdoms is also legal in the Commander format.