his desktop is eligible for a free upgrade to Windows 11 (see below for further details)* The Acer Aspire C27-1655 All-in-One desktop is a slim & stylish home PC that provides plenty of performance in a thin body. The 27” Full HD IPS screen of the C27-1655 displays plenty of fine detail as well as vivid colours, plus you get wider viewing angles, perfect for if you want to watch a movie together or need to help your kid with their homework.