TWENEX

<operating system> /twe'neks/ The TOPS-20 operating system by DEC - the second proprietary OS for the PDP-10 - preferred by most PDP-10 hackers over TOPS-10 (that is, by those who were not ITS or WAITS partisans). TOPS-20 began in 1969 as Bolt, Beranek & Newman's TENEX operating system using special paging hardware. By the early 1970s, almost all of the systems on the ARPANET ran TENEX. DEC purchased the rights to TENEX from BBN and began work to make it their own. The first in-house code name for the operating system was VIROS (VIRtual memory Operating System); when customers started asking questions, the name was changed to SNARK so DEC could truthfully deny that there was any project called VIROS. When the name SNARK became known, the name was briefly reversed to become KRANS; this was quickly abandoned when someone objected that "krans" meant "funeral wreath" in Swedish (though some Swedish speakers have since said it means simply "wreath"; this part of the story may be apocryphal). Ultimately DEC picked TOPS-20 as the name of the operating system, and it was as TOPS-20 that it was marketed. The hacker community, mindful of its origins, quickly dubbed it TWENEX (a contraction of "twenty TENEX"), even though by this point very little of the original TENEX code remained (analogously to the differences between AT&T V6 Unix and BSD). DEC people cringed when they heard "TWENEX", but the term caught on nevertheless (the written abbreviation "20x" was also used). TWENEX was successful and very popular; in fact, there was a period in the early 1980s when it commanded as fervent a culture of partisans as Unix or ITS - but DEC's decision to scrap all the internal rivals to the VAX architecture and its relatively stodgy VMS OS killed the DEC-20 and put a sad end to TWENEX's brief day in the sun. DEC attempted to convince TOPS-20 users to convert to VMS, but instead, by the late 1980s, most of the TOPS-20 hackers had migrated to Unix. [Jargon File] (1995-04-01)

Top 20 on 20 (or just 20 on 20) was a commercial-free, interactive hit music satellite radio station. It was on channel 3 (previously 20) on Sirius XM Radio.

WNBA Top 20@20 are the Women's National Basketball Association's Top 20 Players of All Time, chosen in 2016 on the occasion of the twentieth season of the WNBA from amongst 60 nominees compiled by the league. The group was to comprise the 20 best and most influential players of the first twenty years of the WNBA, with consideration also accorded to sportsmanship, community service, leadership, and contribution to the growth of women's basketball; only players to have competed in the WNBA for at least two seasons, and fit at least three of seven criteria (WNBA championship, major individual award, a selection to either the All-WNBA Team, WNBA All-Defensive Team, or WNBA All-Star Game; a current ranking among the top 30 statistical career leaders; and a selection to either the WNBA's All-Decade Team or the WNBA's Top 15 Players of All Time) were considered.

In Major League Baseball (MLB), the 20–20–20 club is the group of batters who have collected 20 doubles, 20 triples and 20 home runs in a single season. Frank Schulte was the first to achieve this, doing so in 1911.

Timesharing / Total OPerating System (Reference: DEC, OS)

Total Operations Processing System (TOPS) is a computer system for managing railway locomotives and rolling stock, known for many years of use in the United Kingdom.

The Türkiye Top 20 (meaning Turkey Top 20) was a music singles chart in Turkey listing only non-Turkish, i.e.

Tops (stylized in all capital letters as TOPS) is a Canadian indie rock band from Montreal, Quebec, which currently consists of Jane Penny, David Carriere, Riley Fleck, and Marta Cikojevic. They were formed in 2011 following the disbandment of synthpop group Silly Kissers, of which Carriere, Penny, and Gillies were members, along with Arbutus Records recording artist Sean Nicholas Savage.