The iMac is Apple's all-in-one computer, with the iMac MC978LL/A model featuring a 3.1 GHz Core i3 (I3-2100) processor. It was introduced on August 8, 2011.
The iMac MC978LL/A is configured with 2 GB of RAM by default, with the option to upgrade to a maximum of 8 GB. The standard hard drive is a 250 GB Serial ATA (6 Gb/s) and contains a Radeon HD 6750M video card.
The MC978LL/A can be connected via 4 (2.0) USB ports, 1 (800) FireWire ports, SDXC SD Card expansion slots, and 10/100/1000Base-T ethernet ports. The iMac MC978LL/A has support for dual-screen and mirroring capabilities, with a native resolution of 1920x1080 and support for a second screen resolution of up to 2560x1600.
Need help identifying if your computer is the iMac MC978LL/A? Enter your serial number on our iMac serial number lookup page to find out the model of your iMac.
|Standard RAM||2 GB|
|Maximum RAM||8 GB|
|RAM Type||PC3-10600 DDR3|
|Min. RAM Speed||1333 MHz|
|System Bus Speed||5 GT/s|
|Processor Speed||3.1 GHz|
|Processor Type||Core i3 (I3-2100)|
|Standard Hard Drive||250 GB|
|Int. HD Interface||Serial ATA (6 Gb/s)|
|Video Card||Radeon HD 6750M|
|Display and Resolution|
|Built-in Display||21.5" 16|
|2nd Display Support||Dual/Mirroring|
|2nd Max. Resolution||2560x1600|
|Ports / Slots|
|USB Ports||4 (2.0)|
|Firewire Ports||1 (800)|
|Expansion Slots||SDXC SD Card|
|Apple Order No||MC978LL/A|
|Battery and Dimensions|
|Dimensions||17.75 x 20.8 x 7.42|
|Avg. Weight||20.5 lbs. (9.3 kg)|