Sorry guys - that's not a copy. Step back and take another look. The author of the article is certainly biased and might affect your determination as well.
Apple wasn't the creator of big flat panel monitors nor cordless keyboards (of any particular size) - the function of a computer is to interact and produce - the Macs do it well, and some would say PCs do it well, some would say Androids or lesser known OS' do it well too. So while certainly not game changing and not a result of imagination or innovation but just a closely styled competitor in appearance - it's another variation on the theme. To split hairs, the Apple monitor has a signature horizontal field where their brand hovers, the HP does not. The bezel is different, the monitor's depth, form and stand is different, the treatment around the keyboard is different.
If someone at Apple held a press conference and showed you an iPod being held in a particular way - and then heralded that position and gesture as a signature element of Apple's brand positioning and UI design, would you be copying them by holding it in a similar way? There are plenty of people who have brought forth all kinds of iPad looking tablets, iMac looking flat panels, iPod looking sci-fi movie devices, etc from the past - before Apples products. Did Apple copy them? Or did Apple, in their quest for simplicity, come to the same conclusions in styling as many before them?
As another example, the Hoffmeister kink shape on the rear windows of BMWs is a signature element (it even has a name - after the dude who came up with it!!) but you didn't see BMW get all up in a huff when other makers started using variations of it - and even the exact shape itself.