HP's new Windows 8-powered 'All-in-one' PCs: gallery Summary: HP has just unveiled four new 'All-in-one' systems - HP Spectre One, HP Envy 23, HP Envy 20 TouchSmart and the HP Pavilion 20 - in a range of prices that should suit all budgets. By Adrian Kingsley-Hughes for Hardware 2.0 | September 10, 2012 -- 10:13 GMT (03:13 PDT) Follow @the_pc_doc Previous | Next Image 5 of 25 The Spectre One features Ivy Bridge CPUs, a high-end Nvidia GPU and up to 8GB of RAM.Image source: HP. Topics: Hewlett-Packard, Hardware, Microsoft, PCs, Windows Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.