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Power on a pedestal.

iMac sets the standard for elegance and power. It packs a complete, high-performance computer into its all-in-one design. With an anodized aluminum frame and glass cover, it’s striking to behold. The 20- and 24-inch glossy widescreen displays make photos and movies come alive with rich color. The use of recyclable glass and aluminum makes iMac friendlier to the environment, too.

Size and weight
20-inch iMac

Height:
18.5 inches (46.9 cm)
Width:
19.1 inches (48.5 cm)
Depth:
7.4 inches (18.9 cm)
Weight:
20 pounds (9.1 kg)1

24-inch iMac

Height:
20.5 inches (52.0 cm)
Width:
22.4 inches (56.9 cm)
Depth:
8.1 inches (20.7 cm)
Weight:
25.4 pounds (11.5 kg)1

Connections and expansion

* One FireWire 400 port and one FireWire 800 port; 7 watts each
* Total of five USB 2.0 ports: three ports on computer, two ports on keyboard

Communications

* 802.11nBuilt-in AirPort Extreme Wi-Fi wireless networking2 (based on IEEE 802.11n draft (specification); IEEE 802.11a/b/g compatible
* BluetoothBuilt-in Bluetooth 2.1 + EDR (Enhanced Data Rate)
* Built-in 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)

Audio

* Built-in stereo speakers
* Internal 24-watt digital amplifier
* Headphone/optical digital audio output (minijack)
* Audio line in/optical digital audio input (minijack)
* Built-in microphone

Installed software

* UniversalMac OS X v10.5 Leopard (includes Time Machine, Quick Look, Spaces, Spotlight, Dashboard, Mail, iChat, Safari, Address Book, QuickTime, iCal, DVD Player, Photo Booth, Front Row, Xcode Developer Tools)
* iLife ’08 (includes iTunes, iPhoto, iMovie, iDVD, iWeb, GarageBand)

* Built-in 20-inch (viewable) or 24-inch (viewable) glossy widescreen TFT active-matrix liquid crystal display
* Resolution
o 20-inch models: 1680 by 1050 pixels
o 24-inch model: 1920 by 1200 pixels
* Millions of colors at all resolutions
* Typical viewing angle
o Display Screens2008042920-inch models:
160° horizontal
160° vertical
o 24-inch model:
178° horizontal
178° vertical
* Typical brightness: 290 cd/m2 (20-inch models); 385 cd/m2 (24-inch model)
* Typical contrast ratio: 800:1 (20-inch models); 750:1 (24-inch model)

Graphics and video support
ATI logo

* 20-inch model with 2.4GHz processor
o ATI Radeon HD 2400 XT graphics processor with 128MB of GDDR3 memory
* 20-inch model with 2.66GHz processor
o ATI Radeon HD 2600 PRO graphics processor with 256MB of GDDR3 memory
* 24-inch model with 2.8GHz or 3.06GHz processor, one of the following:
o ATI Radeon HD 2600 PRO graphics processor with 256MB of GDDR3 memory
o NVIDIA GeForce 8800 GS graphics processor with 512MB of GDDR3 memory
* Mini-DVI output port with support for DVI, VGA, S-video, and composite video connections via adapter3
* iSightBuilt-in iSight camera
* Support for external display in extended desktop mode
o Digital resolutions up to 1920 by 1200 pixels
o Analog resolutions up to 2048 by 1536 pixels
* Support for external display in video mirroring mode

Processor and memory

* 2.4GHz, 2.66GHz, 2.8GHz, or 3.06GHz Intel Core 2 Duo processor
* 6MB shared L2 cache at full processor speed
* 1066MHz frontside bus
* 1GB (one 1GB SO-DIMM) or 2GB (two 1GB SO-DIMMs) of 800MHz DDR2 SDRAM; two SO-DIMM slots support up to 4GB

Storage
Hard drive4

* 20-inch model with 2.4GHz processor
o 250GB Serial ATA 7200-rpm hard drive
o Optional 320GB or 500GB Serial ATA 7200-rpm hard drive
* 20-inch model with 2.66GHz processor
o 320GB Serial ATA 7200-rpm hard drive
o Optional 500GB or 750GB Serial ATA 7200-rpm hard drive
* 24-inch model with 2.8GHz or 3.06GHz processor Hard Drive
o 320GB Serial ATA 7200-rpm hard drive
o Optional 500GB, 750GB, or 1TB Serial ATA 7200-rpm hard drive

Optical drive

* Slot-loading 8x SuperDrive (DVD±R DL/DVD±RW/CD-RW)
o Writes DVD+R DL and DVD-R DL discs at up to 4x speed
o Writes DVD-R and DVD+R discs at up to 8x speed
o Writes DVD-RW discs at up to 6x speed and DVD+RW discs at up to 8x speed
o Reads DVDs at up to 8x speed
o Writes CD-R discs at up to 24x speed
o Writes CD-RW discs at up to 16x speed
o Reads CDs at up to 24x speed

Electrical and operating requirements

* Line voltage: 100-240V AC
* Frequency: 50Hz to 60Hz, single phase
* Maximum continuous power: 200W (20-inch models); 280W (24-inch model)
* Operating temperature: 50° to 95° F (10° to 35° C)
* Storage temperature: -40° to 185° F (-40° to 85° C)
* Relative humidity: 5% to 95% noncondensing
* Maximum altitude: 10,000 feet

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