Back in the 80's and 90's, when PCs were new and intriguing to humans, they dedicated a corner of a room or a full room to host these strange Machines, putting them on altars –later known as computer shelf– to properly exhibit them.
Most of these altars were equipped with shelfs so the different elements of the Machine could rest comfortably, some additional shelfs were dedicated so the humans of the time could place offerings, like softwares boxes and books to appease the Spirit of the Machine or trinkets to attract good fortune when he was using it.
Some altars were equipped with doors so the Machine could have some privacy during it sleep.
At the time, we went to the computer like ou ancestors go to the church: to received Answers, it was way before the enshitification of the internet.
