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HP TouchSmart 520-1020 All-in-One Desktop (2.6 GHz Intel Pentium Processor, 4GB DDR3, 500GB HDD, Windows 7 Home Premium) Black (Discontinued by Manufacturer) : Amazon.sg: Electronics
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HP launches TouchSmart 520, 420 and 320 all-in-one PCs: pics, specs, prices and release dates - The Verge
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