James Wang, Digitimes Research: iPad pricing to change tablet game.
DigiTimes, Jan 3, 2011
http://www.digitimes.com/news/a20120102PD209.html
("Sources from Apple's supply chain have claimed that there will be two versions of the new iPad, one targeting the high-end segment and the other the mid-range")
Note:
(a) Retina Display appears in iPhone 4S, iPhone 4 and iPod Touch.
Retina Display. Apple, undated.
http://www.apple.com/ipodtouch/features/retina-display.html
("Behind the screen of iPod touch, there’s some serious technology going on. By developing pixels a mere 78 micrometers wide, Apple engineers were able to pack four times the number of pixels into the same size screen found on earlier iPod touch models. This many pixels packed this close together — 326 per inch — make graphics and text look smooth and continuous at any size")
(b) pixel
http://en.wikipedia.org/wiki/Pixel
(The word pixel is based on a contraction of pix ("pictures") and el (for "element"); section 2 Technical (introduction))
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