Your computer's memory (RAM) is the space available for running programs to work in. Don't confuse this with your hard disc - that's the space that the files for a program take up. The more RAM your machine has, the more headroom for programs to operate in. If your machine is running low on RAM, the operating system will start to use the (MUCH slower) hard disc instead, which will cause a major decrease in system performance.
4096Mb is the smallest amount of RAM we offer, and this is fine for normal
use - web browsing, word processing, photos etc. It's worth remembering that
the onboard graphics may use 512Mb of this (if you are using the
onboard graphics) so moving to 8Gb (8192Mb) is a fairly common upgrade (it provides
a major boost if you're using the on-board graphics, for technical
reasons). Extra memory helps with most things, especially graphics applications, desktop
publishing, games, video work etc. More may seem like overkill, but
Windows PCs seem to be able to make any amount of memory feel like "not enough"!
As an aside, High specification SpaceCubes use expensive high-quality RAM not found in most other systems. The reason for this is to guarantee reliability at high performance. We want to ensure that our customers don't experience the kind of problems we've seen and read about which result from the use of "normal" grade memory with these high spec machines.
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