The amount of RAM that is factory installed in a MacBook depends on the model of MacBook. In the latest models (May 2013), the 11 and 13-inch MacBook Airs have 4GB of 1600MHz DDR3L memory factory-installed, and the 13 and 15-inch MacBook Pros 4GB of 1600MHz DDR3 memory, all four models being configurable to 8GB. The 13 and 15-inch MacBook Pros with retina display, however, have 8GB of 1600MHz DDR3L memory factory-installed, this configurable to 16GB.
I chose Mac Os because i can't use mac os
Mac book air weight is 2.3pound (1.06kg)
factory reset should do it
About $1,567
No Internet provider comes installed on a Mac computer.
$999. At the cheapest for a MacBook.
Firefox is not installed with a new Mac it needs to be downloaded and installed. (See links below)
The Mac Book Pro is better than the Mac Book Air.
Mac OS Leopard
Not for the Mac but you can have the Windows 98 Hardware Disk installed on a Mac then download MapleStory.
Yes as long as your Mac has java installed
The Mac OS X Server software (See links below) can be installed on any modern Apple Mac computer or can be purchased ready installed on a Mac Mini ready to go.