DOS 1.x (1981) had no explicit memory management support. It was designed to run primarily on machines with 64K RAM or less, or not too much more (the original PC could not have more than 64K RAM on the system board, although RAM expansion boards did exist). A COM program could easily access (almost) 64K memory when loaded, and many programs didn’t rely on even having that much. In fact the early PCs often only had 64K or 48K RAM installed. But the times were rapidly changing.
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should be a really good reason when deviating from that expectation.
“We can’t underappreciate how important pillows are,” Martin says. They’re something that can be easily adjusted throughout the night and should be propped up in a way that supports your neck and back. For example, Martin says that side sleepers may benefit from putting a pillow under the top of their knee.