1. 
   PS-2
   Programming System 2 [IBM]
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
2. 
   PS-2
   An IBM personal computer series with microchannel architecture, produced as the successor to the AT. PS/2 is also applied to a 6-pin connector used to connect keyboards, mice and other pointing devices to the computer. The PS/2 socket is directly connected to the internal bus and therefore does not ...
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
3. 
   PS-2
   This field indicates how many PS/2 ports, used by PS/2 keyboards and mice, are on the motherboard
   Found op http://www.thebarcodewarehouse.co.uk/help/glossary.xhtml
   
   
4. 
   PS-2
   (computer) IBM's second generation of personal computers. The PS/2 series introduced three advances over the PC series: 3.5' 1.44 megabyte microfloppy disks, VGA and 8514 graphics display standards, and the Micro Channel bus architecture. The 3.5' disks and VGA can be easily installed on other PCs ...
   Found op http://foldoc.org/PS-2
   
   
5. 
   PS2
   Sony Playstation
   Found op http://foldoc.org/PS2
   
   
6. 
   pseudovitamin B12
   <biochemistry> Cobamide cyanide phosphate, 3'-ester with 7-alpha-d-ribofuranosyladenine, inner salt; vitamin B12 with adenine replacing dimethylbenzimidazole; one of several substances produced during anaerobic fermentation by certain organisms in bovine rumen contents; it is chemically closel...
   Found op http://www.mondofacto.com/facts/dictionary?pseudovitamin+B12
   
   
7. 
   pseudovitamin B12
   Type: Term Definitions: 1. one of several substances produced during anaerobic fermentation by certain organisms in bovine rumen contents; it is chemically closely similar to vitamin B12 (cyanocobalamin) but in humans, without the physiologic action of the vitamin.
   Found op http://www.medilexicon.com/medicaldictionary.php?t=73530
   
   
8. 
   PSR 1257+12
   A millisecond pulsar in the constellation Virgo discovered in 1990 by Alexander Wolszczan of the Arecibo Observatory. Around it, in 1991, Wolszczam and Dale Frail of the National Radio Astronomy Observatory in New Mexico found the first planets to be subsequently confirmed outside the Solar System. ...
   Found op http://www.daviddarling.info/encyclopedia/P/PSR1257+12.html
   
   
9. 
   PSR B1257+12
   (from the article `planet`) ...stars. After decades of searching for such extrasolar planets, astronomers in the early 1990s indirectly identified three planets circling a ... After decades of searching for extrasolar planets, astronomers in the early 1990s confirmed the presence of three bodies cir...
   Found op http://www.britannica.com/eb/a-z/p/127
   
   
10. 
    Psycho 2
    Psycho 2 is a horror thriller starring Anthony Perkins as the infamous Norman Bates now released from his asylum and returning to the Bates Motel where people start getting murdered again. Psycho 2 was directed by Richard Franklin.
    Found op http://www.probertencyclopaedia.com/browse/MP.HTM
    
    

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