Apple and education have always gone hand in hand, from the first Apple IIs gracing libraries across the nation to the countless aging machines now in place at schools everywhere. Now, however, a new version of the iMac may allow schools to upgrade on the cheap, reports the Washington Post. 9to5 is reporting that a sub-$1,000 iMac will be released on or around August 16 with a slower processor and less RAM. The machine will not compete with the “real” entry-level iMac, priced at $1,200, and instead will be available primarily to educational clients…