This article provides the technical specifications for the iMac (Early 2001) computer introduced February, 2001.

Processor and memory

• 400 MHz, 500 MHz or 600 MHz PowerPC G3 processor
• 512K backside level 2 cache at 160 MHz (400 MHz system); or 256K on-chip level 2 cache at full processor speed (500 MHz and 600 MHz systems) (See Note 5.)
• 100 MHz system bus
• 64 MB or 128 MB of PC100 SDRAM; two DIMM slots support up to 1 GB using 64 MB, 128 MB, 256 MB, or 512 MB DIMMs

• Apple Pro Keyboard with full-size function and navigation keys, audio controls, and media-eject key
• Apple Pro Mouse with optical sensor for precision cursor control

• Built-in 38 cm shadow-mask CRT (35 cm diagonal viewable image size); 0.28 mm dot pitch
• Onscreen geometry adjustment to keep display images properly aligned throughout its lifetime
• Theater Mode for enhanced brightness of full-screen video
• Flip foot for 17° tilt

• ATI RAGE 128 Pro graphics accelerator with 8 MB of SDRAM or ATI RAGE 128 Ultra graphics accelerator with 16 MB of SDRAM; AGP 2X support
• Screen resolutions: 640 by 480 pixels at 117 Hz, 800 by 600 pixels at 95 Hz, and 1024 by 768 pixels at 75 Hz
• 24-bit true color at all resolutions for displaying millions of colors

• Standard VGA output port (15-pin mini D-Sub connector)
• Support for video mirroring: external devices display an image identical to that shown on the built-in display

• Built-in 56K V.90 modem (RJ-11 connector)(See Note 2.)
• 10/100BASE-T Ethernet (RJ-45 connector)
• Optional 11Mbps AirPort Card; IEEE 802.11 DSSS compliant (See Note 3.)
• Optional AirPort Base Station with 56K modem and 10BASE-T Ethernet port (See Note 3.)

• Two USB ports on computer (12 Mbps each; one used for keyboard); two USB ports on keyboard (12 Mbps each; one used for mouse)
• Two 400 Mbps FireWire (IEEE 1394) ports (See Note 4) ; includes 4-pin-to-6-pin FireWire cable for connecting DV camera

• Integrated high-performance Odyssey audio system by Apple and Harman Kardon
• Built-in microphone for speech recognition and audio recording
• Front-mounted dual mini headphone jacks (headphones not included)
• Analog audio input and output minijacks; up to 16-bit stereo and 44.1kHz sampling rate
• Support for external USB audio devices
• Storage
• 10 GB, 20 GB, or 40 GB Ultra ATA hard disk drive (See Note 1.)
• Slot-loading 24x (maximum) CD-ROM drive (reads CD at 24x speed); or 8x4x24x (maximum) CD-RW drive (writes CD-R at 8x speed, writes CD-RW at 4x speed, reads CD at 24x speed)
• Support for external FireWire and USB storage devices

• Line voltage: 100 V to 260 V AC
• Frequency: 47 Hz to 63 Hz, single phase
• Maximum continuous power: 150 W
• U.S. EPA ENERGY STAR compliant

• Operating temperature: 10 °C to 35 °C
• Storage temperature: -47 °C to 47 °C
• Relative humidity: 5 to 95 percent noncondensing
• Altitude: 0 m to 3000 m

• Height: 381 mm
• Width: 381 mm
• Depth: 435 mm
• Mass: 15.8 kg

1. For hard drive capacity measurements, 1 GB = 1 billion bytes; actual formatted capacity less.

2. Actual modem speeds lower; speed depends on connection rate and other factors.

3. Wireless Internet access requires AirPort Card, AirPort Base Station, and Internet access (fees may apply). Some ISPs are not currently compatible with AirPort, including America Online. Range may vary with site conditions.

4. Actual rates will vary.

5. 500 Mhz models outside North America have 512K backside level 2 cache at 200 Mhz.