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Features

Here is a list of the features of the iMac computer. Each feature is described in more detail in a later chapter.

• Processor: The iMac has a PowerPC G3 microprocessor running at a clock speed of 233 MHz. For more information, see G3 Microprocessor .
• Cache: The iMac has a backside L2 cache consisting of 512 KB of fast static RAM. The clock speed for the backside cache is half the clock speed of the microprocessor. For more information, see Backside Cache .
• Memory: The iMac has two standard SO-DIMM expansion slots for SDRAM modules. The computer comes with 32 MB of SDRAM installed. RAM is expandable up to 128 MB total, using presently available memory devices. For more information, see Main RAM Expansion .
• Hard disk storage: The iMac has a built-in hard disk drive with a capacity of 4 GB. For more information, see Hard Disk Drive .
• CD-ROM drive: The iMac has a built-in CD-ROM drive with 24X speed.
• Display: The iMac has a built-in 15-inch color monitor (13.8-inch viewable diagonal). The monitor can display with resolutions of 640 by 480, 800 by 600, or 1024 by 768 pixels. For more information, see Video Display .
• Video RAM: The iMac comes with 2 MB of video SGRAM, which supports millions of colors on displays up to 800 by 600 pixels and thousands of colors on a display with 1024 by 768 pixels. The computer has one expansion slot for a second 2 or 4 MB SGRAM DIMM, which allows the computer to display millions of colors on a display with 1024 by 768 pixels. For more information, see Video RAM Expansion .
• Graphics acceleration: The video circuits provide built-in 2D and 3D acceleration using an ATI Rage IIc IC.
• USB ports: The computer has two USB ports for keyboard, mouse, and other USB devices, described in USB Ports .
• Modem: The computer has a built-in modem with 56 Kbps data rate. For more information, see Internal Modem .
• Ethernet: The computer has a built in Ethernet port for a 10Base-T and 100Base-TX operation with an RJ-45 connector. For more information, see Ethernet Port .
• Infrared link: The computer has an IrDA infrared link capable of transferring data at up to 4 Mbits per second. For more information, see Infrared Communication Link .
• Sound: The computer has a built-in microphone and two stereo speakers as well as line-level stereo input and output jacks and two stereo headphone jacks. For more information, see Sound System .
• Keyboard: The Apple USB keyboard is a new design that operates as a USB device. The keyboard includes function keys and inverted-T cursor motion keys. It is also a bus-powered USB hub with two USB ports. For more information, see Keyboard .
• Mouse: The Apple USB mouse is a new design that operates as a USB device. For more information, see Mouse .
• Size and weight: The iMac computer is 39.5 cm (15.8 inches) high, 38.0 cm (15.2 inches) wide, and 44.0 cm (17.6 inches) deep; it weighs 17.3 kg (38.1 pounds).