"Obsolete" means the same in Africa
Martin Gregorie illustrated the case for Linux very neatly.
But the actual intention of mentioning the hardware minima was that the stuff already being sent to Africa frequently does not meet even the documented minimum hardware requirements for the operating system concerned. The PCs that will be dragged from the attic as a result of sudden WEE-directive-inspired generosity promise to be even older and thus worse.
A major international computer recycling organisation that supplies PCs to Africa currently offers Windows XP as a £5.00 optional extra. 90% of their PCs are shipped with a mere 128MB RAM, which is half of even the Microsoft recommendation!
The same charity only raised their minimum hard drive specification to 10GB in mid-March of this year, which gives one a notion of the obsolescence of much of the kit being donated to/dumped upon Africa.