The 21.5″ or 27″ LED backlit screens are covered by edge to edge glass making for a strikingly slick appearance. The screens now deliver a perfect 16:9 aspect ratio for the ultimate multimedia experience.

The mighty mouse has been replaced with the aluminum Magic Mouse. Adding to the sleek aluminum look of the whole desktop set alongside the aluminum keyboard.

Other small additional features include a built in SD Slot.

This model came as either 20″ or 24″ with the display set in to the aluminium and sealed in with a black bezel. This made for a sleek modern look compared to the now aging white plastic.

Base configurations started at 250GB hard drives with upgrade options of 320 and 500. The base models graphics were powered by the ATI Radeon HD 2400 XT with 128MB of GDDR3 memory.

Stacks of connectivity as with previous models included Wireless N, Built in bluetooth and an IR receiver. It also featured the now standard range of FireWire and USB ports as well as gigabit ethernet and digital audio input/output.

For some strange reason apple were still including white plastic mighty mice with these models although the supplied keyboard was now aluminum. The usual software of iLife 08 was thrown in with the package.

This model came as either 20″ or 24″ with the display set in to the aluminium and sealed in with a black bezel. This made for a sleek modern look compared to the now aging white plastic.

Base configurations started at 250GB hard drives with upgrade options of 320 and 500. The base models graphics were powered by the ATI Radeon HD 2400 XT with 128MB of GDDR3 memory.

Stacks of connectivity as with previous models included Wireless N, Built in bluetooth and an IR receiver. It also featured the now standard range of FireWire and USB ports as well as gigabit ethernet and digital audio input/output.

For some strange reason apple were still including white plastic mighty mice with these models although the supplied keyboard was now aluminum. The usual software of iLife 08 was thrown in with the package.

Apple offered developers a transition kit for creating Universal Binaries that would work on both Power PC and Intel architecture. Little over six months later Apple were shipping their first Intel based iMacs using the Core Duo processors.

The intial Intel iMac used the same design as the previous G5 iMac with the price and features staying the same.

This iMac was powered by the 1.83GHz Intel Core Duo T2400 processor with 2MB shared L2 smart cache. The Intel CPU used SpeedStep technology, which saved power by automatically adjusting the processor speed. Also included were a built-in stereo speaker system, built-in microphone, built-in iSight camera, as well as the white keyboard, Mighty Mouse and Apple Remote.

The introduction of the iMac G5 model line showed us a completely different design to the floating iMac G4. The new all in one screen shape has been used in all subsequent iMacs to date.

The design encapsulated the entire machine in a 2 inch thick screen. It is often mistaken for a stand alone LCD display when infact there is a powerhouse of computing contained within.

The iMac was supported by a sturdy aluminum stand that is higned to allow for tilt adjustment.

The model range started with the 17″ 1.6Ghz PPC G5 CPU. It had 256MB of PC3200 DDR Ram as standard. The optical drive on the low end model was a combo drive which in higher end models was replaced with Apples superdrive.

The top range models contained a 20″ display and a 2.1Ghz model. All models could be upgraded to a maximum of 2GB of DDR Ram.

Powering the displays was the job of the NVIDIA GeForce FX 5200 Ultra video card. These video cards used an 8x AGP port and contained 64MB of dedicated DDR.

USB 2.0 ports came in a threesome and 2 Fire Wire 400 ports provided high speed connections. VGA and S-Video and composite video outputs were available.

All models were AirPort Exteme Wireless ready with a option to opt for internal Bluetooth.

Speakers were now built in to all models.

The whole package weighed in at only 18.5 lbs (8.4kg)

The introduction of the iMac G5 model line showed us a completely different design to the floating iMac G4. The new all in one screen shape has been used in all subsequent iMacs to date.

The design encapsulated the entire machine in a 2 inch thick screen. It is often mistaken for a stand alone LCD display when infact there is a powerhouse of computing contained within.

The iMac was supported by a sturdy aluminum stand that is higned to allow for tilt adjustment.

The model range started with the 17″ 1.6Ghz PPC G5 CPU. It had 256MB of PC3200 DDR Ram as standard. The optical drive on the low end model was a combo drive which in higher end models was replaced with Apples superdrive.

The top range models contained a 20″ display and a 2.1Ghz model. All models could be upgraded to a maximum of 2GB of DDR Ram.

Powering the displays was the job of the NVIDIA GeForce FX 5200 Ultra video card. These video cards used an 8x AGP port and contained 64MB of dedicated DDR.

USB 2.0 ports came in a threesome and 2 Fire Wire 400 ports provided high speed connections. VGA and S-Video and composite video outputs were available.

All models were AirPort Exteme Wireless ready with a option to opt for internal Bluetooth.

Speakers were now built in to all models.

The whole package weighed in at only 18.5 lbs (8.4kg)

The processor remained static at 1GHz but the models were improved in several other ways. The connectivity was upgraded by way of the addition of USB 2.0 ports to replace the traditional 3 USB 1.1 ports. The amount of memory remained the same but was boosted from 133MHz SDRAM to a much speedier 333MHz DDR SDRAM.

The FSB was increased from 100 to 133MHz and the hard drive capacity topped 80GB.

The combo drive remained at 32x but the graphics card used across the board was the 32MB DDR SDRAM GeForce4 MX.

The last 15″ iMac model to be offered was that of the iMac G4 USB 2.0.

A year would pass before this model was superseded by the now easily recognisable shape of the iMac G5.

This 17″ flat panel model replaced its only 6 month old predecessor.

The new 1Ghz processor gave it a 200MHz speed boost, whilst the FSB rose to 133Mhz. An increase of 33MHz from previous models. It also came in $200 cheaper than the previous 17″ model.

The hard drive capacity stayed the same at 80GB but there was a performance gain due to the higher RPM drive used. The drive had gone from a standard 5400 to a much improved 7200 RPM.

The 17″ model also featured a graphics card much more powerful than that of the 15″ models. It was powered by an NVIDIA GeForce4 MX with 64MB of DDR SDRAM.

An Airport Extra card meant that the 17″ iMac was Wireless and Bluetooth ready out of the box. It also featured all of the connectivity of the 15″ model such as two FireWire 400 ports, Three USB ports with an extra pair on the keyboard, Built in modem and Ethernet, Headphone Jack and apple speaker mini jack and a mini-VGA port!

The whole of the series came with the Apple Pro Keyboard and mouse as well as Apple Pro Speakers.

A slight rearrangement of the rear ports took place although this did not reduce connectivity in any way.

With an extra 100Mhz from the processor, 20GB extra hard drive space and a extra boost from the Combi drive from 24x to 32x this model was no slouch.

However it still used the GeForce 2 MX video card. It was only in the 17″ model that the beefier Geforce4 would feature.

Wireless ready due to its airport card and bluetooth capable via a seperate USB adaptor this model was not short on connectivity. A further example of this was down to the two FireWire 400 ports, Three USB ports with an extra pair on the keyboard, Built in modem and Ethernet, Headphone Jack and apple speaker mini jack and a mini-VGA port!

The powerful new PowerPC G4 processor with AltiVec “Velocity Engine” provided the new iMac’s OS X operating system with enough speed to run smoothly.

The whole of the series came with the Apple Pro Keyboard and mouse as well as Apple Pro Speakers.

The sunflower inspired design included a 15″ LCD display with an elegant stainless steel ’stem’ allowing for easy repositioning at almost any angle.

The powerful new PowerPC G4 processor with AltiVec “Velocity Engine” provided the new iMac’s OS X operating system with enough speed to run smoothly.

The three 15″ models came with USB 1.1, FireWire, Nvidia Graphics a mini-VGA output port, built-in modem and Ethernet, and Apple’s Wireless Networking – AirPort.

The sunflower inspired design included a 15″ LCD display with an elegant stainless steel ’stem’ allowing for easy repositioning at almost any angle.

The powerful new PowerPC G4 processor with AltiVec “Velocity Engine” provided the new iMac’s OS X operating system with enough speed to run smoothly.

The three 15″ models came with USB 1.1, FireWire, Nvidia Graphics a mini-VGA output port, built-in modem and Ethernet, and Apple’s Wireless Networking – AirPort.

The sunflower inspired design included a 15″ LCD display with an elegant stainless steel ’stem’ allowing for easy repositioning at almost any angle.

The powerful new PowerPC G4 processor with AltiVec “Velocity Engine” provided the new iMac’s OS X operating system with enough speed to run smoothly.

The three 15″ models came with USB 1.1, FireWire, Nvidia Graphics a mini-VGA output port, built-in modem and Ethernet, and Apple’s Wireless Networking – AirPort.

A 17″ version with a SuperDrive debuted 6 months later.

This model was a small step up from the special edition featured 5 months earlier. The G3 Processor was now up to a rapid 700Mhz. The hard drive space was increased by another 20GB to a total of 60GB.

As ever, this model was airport ready and featured VGA and FireWire ports.

This special edition was available in Graphite or Snow.

The Graphics chip received an upgrade to an ATI Rage 128 ULTRA with 16MB of SDRAM.

Two funky new colors were made available with the release of the special edition iMac G3. Blue Dalmatian and Flower Power. The ever popular Graphite version was still available.

Memory bus speeds remained at 100Mhz as with previous models but the memory was upgraded to 128mb. 1GB memory upgrades were possible with this model.

Special edition versions were wireless ready with airport cards and included the same VGA and FireWire ports as in their predecessor.

This model was Wireless ready with its airport card and also included a VGA port for mirrored VGA output.

As with previous models it was available in several colors. These included Indigo, Ruby and Sage.

Special Edition models were available in Graphite or Snow.

This model featured a new Apple Pro Keyboard, Apple Pro Mouse and upgraded ATI Rage Pro 128 graphics.

This range also introduced non-fruit colors for the first time.

The DV models featured wireless networking (with a built in antenna).

This model of iMac had no internal fan and would depend on convection cooling.