Mountain Lion X Os. The mac os x lion. Mac os x mountain lion overview.
The mac os x lion. Mountain lion will not only make your mac work better it also makes your mac work even better with your iphone ipad and ipod touch. Os x is an operating system designed and marketed by apple inc.
Get your mac in on game center.
Because it comes with icloud your mail calendars contacts. Mountain lion will not only make your mac work better it also makes your mac work even better with your iphone ipad and ipod touch. The os x mountain lion is the ninth version of the operating system replacing its predecessor. Just click the mac app store icon in your dock purchase mountain lion and follow the onscreen instructions to install it.