iMac

Essentials

Family: iMac/eMac

Codename: Columbus

Gestalt ID: 406

Minimum OS: 8.1

Maximum OS: 10.3.9

Introduced: August 1998

Terminated: January 1999


Processor

CPU: PowerPC 750 "G3"

CPU Speed: 233 MHz

FPU: integrated

Bus Speed: 66 MHz

Register Width: 32-bit

Data Bus Width: 64-bit

Address Bus Width: 32-bit

ROM: 1 MB ROM + 3 MB toolbox ROM loaded into RAM

RAM Type: 144 pin SO-DIMM

Minimum RAM Speed: 100 MHz

Onboard RAM: 0 MB

RAM slots: 2

Maximum RAM: 256 MB

Level 1 Cache: 32 kB data, 32 kB instruction

Level 2 Cache: 512 kB backside, 1:2

Expansion Slots: mezzanine


Video

Monitor: 15"

VRAM: 2 -6 MB SGRAM

Max Resolution: 16 bit 1024x768


Storage

Hard Drive: 4 GB

ATA Bus: EIDE

Optical Drive: 24x CD-ROM


Input/Output

USB: 2

Audio Out: stereo 16 bit mini

Audio In: stereo 16 bit mini

Speaker: stereo, SRS

Microphone: mono


Networking

Modem: 56 kbps

Ethernet: 10/100Base-T


Miscellaneous

Power: 80 Watts

Dimensions: 15.8" H x 15.2" W x 17.6" D

Weight: 40 lbs.


Notes

The Rev. 2 iMacs included 6 MB of VRAM standard, allowing for 24 bit color at 1024x768.

Announced in May 1998 and shipped in August, the iMac was Apple's computer for the new millennium. Aimed at the low-end consumer market and designed with the internet in mind, the iMac was positioned by Apple as the most original new computer since the original Rev. C in January 1999.

Picture Credits:
Apple, Inc.