Apple has launched a new 21.5-inch iMac exclusively for education institutions, which is now available to order through the Apple Online Store .

Featuring a 21.5in display, a dual-core Intel i3 Core 3.1GHz processor, 2GB of RAM - upgradeable to 8GB - a 50GB hard disk and OS X Lion pre-installed, the new iMac also boasts and AMD Radeon HD 6750 with 512MB GDDR5 graphics card.

The Apple Long Wired Keyboard and Wired Mouse are supplied as standard. It can be ordered today and is expected to ship in two to three weeks.

US pricing is reported to be $999, according to MacRumors, and though we haven't had UK pricing confirmed yet we're expecting it to cost around £880.

The key specifications are as follows:

3.1GHz Intel Core i3 dual-coreGlossy 21.5-inch LCD with 1920 x 1080 pixelsAMD Radeon HD 6750 with 512MB GDDR52GB RAM 1333MHz DDR3, 4GB or 8GB CTO option250GB HDDSD Card slotIn built FaceTime HD cameraBuilt-in SuperDriveBuilt-in AirPort 802.11n and Gigabit EthernetApple Long Wired Keyboard and wired mouse as standardOS X Lion pre-installed

There are currently two 21.5in iMacs for sale to general customers, one with a 2.5GHz quad-core Intel Core i5, 4GB of RAM and a 500GB hard disk, the other with a 2.7GHz quad-core Intel Core i5, 4GB of RAM and a 1TB hard disk. They cost £999 and £1,249 respectively.