By Katie Marsal

Published: 06:50 PM EST

As was first reported by AppleInsider last February, Apple's new MacBook Air lacks a built-in optical disc drive, meaning users will need to perform backups and software installs using two new wireless solutions or with the help of the company's new MacBook Air external Super Drive.

The $99 MacBook Air Super Drive is thin, light, and easy to tote on the go. It's slot-loading, weighing 320 g (0.71 pounds) and measuring 139 x 139 x 17 mm / 5.47 x 5.47 x 0.67 inches (L x W x H).

For those MacBook Air users who prefer to forgo the external drive, Apple has introduced two wireless solutions aimed at tackling data backups and software installs.

The first, Time Capsule, is an AirPort Extreme 802.11n Wi-Fi router with a built in "server grade" hard disk drive. It works directly with the MacBook Air, allowing owners to backup their notebook's hard disk drive wirelessly with help from Leopard's Time Machine software. Apple is offering a 500GB version for $299 and a 1TB version for $499, both of which are due to begin shipping next month.

To tackle software installs, Apple also introduced a software-based feature dubbed Remote Disc which will allow MacBook Air users to perform software installs wirelessly using a nearby Mac's optical disc drive.

Users simply install the Remote Disc software on a nearby Mac that contains an optical disc drive, insert into that Mac the optical disc containing the software to be installed on the MacBook Air, then select Remote Disc from the Finder's Devices menu on the MacBook Air.

"[Then] click on the computer you enabled, and then double-click to open the software DVD," Apple says. "Now proceed with the installation just as if you had a built-in optical drive."