Article: 2010s saw multiple new sounds in house music developed by numerous DJs. Sweden knew a prominence of snare-less "Swedish progressive house" with the emergence of Sebastian Ingrosso, Axwell, Steve Angello (These three formed a trio called Swedish House Mafia), Avicii, Alesso, etc. Netherlands brought together a concept of "Dirty Dutch", electro house subgenre characterized by very abrasive leads and darker arpeggios, with prominent DJs Chuckie, Hardwell, Laidback Luke, Afrojack, R3hab, Bingo Players, Quintino, Alvaro, Cedric Gervais, 2G, etc. Elsewhere, fusion genres derivative of 2000s progressive house returned to prominence, especially with the help of DJs Calvin Harris, Eric Prydz, Mat Zo, Above & Beyond and Fonzerelli in Europe, Deadmau5, Kaskade, Steve Aoki, Porter Robinson and Wolfgang Gartner in the US and Canada. The growing popularity of such artists led to the emergence of electro house and progressive house blended sounds in popular music, such as singles Lady Gaga's "Marry the Night", The Black Eyed Peas' "The Best One Yet (The Boy)" and the will.i.am and Britney Spears "Scream & Shout". Big room house found increasing popularity since 2010, particularly through international dance music festivals such as Tomorrowland, Ultra Music Festival, and Electric Daisy Carnival.

Question: What was different about swedish progressive house music?
Ans: snare-less

Article: It also includes the alternative 14401152 HDMAC scan format. (According to some reports, a mooted 750-line (720p) format (720 progressively scanned lines) was viewed by some at the ITU as an enhanced television format rather than a true HDTV format, and so was not included, although 19201080i and 1280720p systems for a range of frame and field rates were defined by several US SMPTE standards.)

Question: What were 1920x1080i and 1280x720p defined by?
Ans: US SMPTE standards

Article: In the UK the Royal Society for the Prevention of Accidents supports a proposal to observe SDST's additional hour year-round, but is opposed in some industries, such as postal workers and farmers, and particularly by those living in the northern regions of the UK.

Question: What was the name of the organization that supported adding an additional hour to their clocks all year?
Ans: the Royal Society for the Prevention of Accidents

Article: Most early home computer systems developed their own 8-bit character sets containing line-drawing and game glyphs, and often filled in some or all of the control characters from 031 with more graphics. Kaypro CP/M computers used the "upper" 128 characters for the Greek alphabet. The IBM PC defined code page 437, which replaced the control-characters with graphic symbols such as smiley faces, and mapped additional graphic characters to the upper 128 positions. Operating systems such as DOS supported these code pages, and manufacturers of IBM PCs supported them in hardware. Digital Equipment Corporation developed the Multinational Character Set (DEC-MCS) for use in the popular VT220 terminal as one of the first extensions designed more for international languages than for block graphics. The Macintosh defined Mac OS Roman and Postscript also defined a set, both of these contained both international letters and typographic punctuation marks instead of graphics, more like modern character sets.

Question: What did IBM PC replace the control-characters with?
Ans:
graphic symbols such as smiley faces