The Apple iMac (Original iMac) is a personal computer that was designed, manufactured, and sold by Apple from 1998 to 1999 as part of the iMac series. The computer has been introduced on May 6, 1998, and its price started at $1299.

The all-new iMac features a 233 MHz PowerPC 750 G3 processor, 15″ CRT Display, 32 MB of RAM, 4 GB hard drive, 24x CD-ROM tray-loading drive, and 2 MB ATI Rage IIc graphics in the base model.

This iMac has been discontinued on January 5, 1999, and has been replaced by iMac in 5 Flavors.

Today original iMac is 25 years old!

Source: – iMac

iMac Release Date and Original Price

IntroducedMay 6, 1998
ReleasedAugust 15, 1998 (Revision A)
October 26, 1998 (Revision B)
DiscontinuedJanuary 5, 1999
Model IdentifieriMac,1
Model NumberM4984
Order NumberM6709LL/A
Original Price$1,299
Weight40 Ibs.
18.143 KG
Dimensions15.8” H x 15.2” W x 17.6” D
40.13 cm H x 38.6 cm W x 44.7 cm D

Tech Specs


ProcessorPowerPC 750 G3
Processor Speed233 MHz
Number of Cores1
System Bus66 MHz
Cache64 KB L1
512 KB backside L2
CoprocessorBuilt-in FPU

Storage & Media

Storage4 GB
Media1 – Tray-loading 24x CD-ROM


Built-in Memory32 MB
Maximum Memory128 MB (Apple – Revision A)
384 MB (Actual – Revision A)
256 MB (Apple – Revision B)
512 MB (Actual – Revision B)
Memory Slots2 – PC66 144-pin SO-DIMM
Minimum Speed10 ns
Interleaving SupportNo


Built-in Display15″ Shadow-mask CRT Display (13.8″ viewable)
Resolutions640 x 480
800 x 600
1024 x 768


Graphics CardATI Rage IIc (Revision A)
ATI Rage Pro (Revision B)
Graphics Memory2 MB (Upgradable to 6 MB – Revision A)
6 MB (Revision B)
Display ConnectionInternal DB-15 connection for built-in display
Display ModesNone
External ResolutionN/A


Expansion Slots1 – Mezzanine
Optical Drive InterfaceATA-3 (Shared with hard disk drive)
Hard Drive InterfaceATA-3 (Shared with optical drive)


Ethernet10/100BASE-T (RJ-45)
Modem33.6k or 56k
USB2 – 12 Mbps
Infrared1 – 4 Mbps (Revision A)
Audio In1 – 3.5-mm analog input jack
1 – Built-in microphone
Audio Out1 – 3.5-mm analog output jack
2 – Built-in speakers
DisplayInternal DB-15 connection for built-in display


Original OSMac OS 8.1 (Revision A)
Mac OS 8.5 (Revision B)
Later OSMac OS 8.6 (Revision B)
Maximum OSMac OS X 10.3.9
FirmwareMacintosh ROM
Bundled SoftwareN/A

Keyboard and Mouse

PeripheralsApple USB Keyboard
Apple USB Mouse


Backup Battery3.6 V Lithium
Maximum Continuous Power80 W
Line Voltage100-240 V AC

Apple Support – iMac: Technical Specifications

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