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Apple Mac G5 2.0gHz 20 inch iMac flatpanel

The Apple iMac G5/2.0 20-Inch features a revolutionary design with the entire computer placed behind the flat-panel display in an integrated all-in-one enclosure approximately two inches deep.

Like their predecessors, the "chassis" of the "Ambient Light Sensor" iMac G5 models rest upon an aluminum stand with an adjustable hinge, and it supports the "Video Electronics Standards Association (VESA) mounting interface standard" which makes it easy to mount the system directly on a kiosk, wall, or articulating arm. Additionally, as the name implies, all "Ambient Light Sensor" models have a sensor under the edge of the display that dims the sleep indicator light when the room is dark -- a nice touch for a system setup in a bedroom.

The iMac G5/2.0 20-Inch (ALS) features a 2.0 GHz PowerPC 970 (G5) processor with an optimized AltiVec "Velocity Engine" vector processing unit and a 512k on-chip level 2 cache, 512 MB of 400 MHz PC3200 DDR SDRAM, a 160 GB (7200 RPM) Serial ATA hard drive, a vertically-mounted slot-loading 8X DVD-R/CD-RW "SuperDrive", ATI Radeon 9600 graphics with 128 MB of DDR SDRAM (AGP 8X), and built-in stereo speakers underneath the 20" TFT Active Matrix LCD (1440x900) display designed to "bounce sound off the desk below". Connectivity includes Firewire "400" and USB 2.0, as well as standard AirPort Extreme (802.11g) and Bluetooth 2.0+EDR.

The iMac G5 models are cooled by three "ultra-quiet blowers that draw cool air into the system" through the speaker grill and a slit in the top of the back of the case allows heat to dissipate.

Introduction Date:

May 3, 2005

Discontinued Date:

October 12, 2005

Processor Type:

PowerPC 970* (G5)

Processor Speed:

2.0 GHz

Details:

The PowerPC 970 "G5" has 64-bit data paths and registers with native support for 32-bit application code. It additionally includes the AltiVec "Velocity Engine" vector processor and "two independent double-precision floating-point units".

Processor Upgrade:

None

FPU:

Integrated

Details:

The processor is mounted directly to the motherboard.

System Bus Speed:

667 MHz (3:1)

Cache Bus Speed:

2.0 GHz (Built-in)

Details:

667 MHz frontside bus.

ROM/Firmware Type:

Open Firmware

ROM/Firmware Size:

1 MB

Details:

Boot ROM and around 1 MB, other instructions are loaded into RAM (NewWorld).

L1 Cache:

32k/64k

L2/L3 Cache:

512k

Details:

32k level 1 data cache, 64k level 1 instructional cache. The 512k on-chip level 2 cache runs at processor speed.

RAM Type:

PC3200 DDR

Min. RAM Speed:

400 MHz

Details:

Supports 400 MHz PC3200 DDR SDRAM. If installing RAM in both slots, use matching memory for best performance.

Standard RAM:

512 MB

Maximum RAM:

2.0 GB

Motherboard RAM:

None

RAM Slots:

Details:

If non-matching RAM is installed, the 128-bit memory bus will operate as a 64-bit bus.

Video Card:

Radeon 9600

VRAM Type:

DDR SDRAM

Details:

ATI Radeon 9600 with 128 MB of DDR SDRAM (AGP 8X support).

Standard VRAM:

128 MB

Maximum VRAM:

128 MB

Details:

Video cannot be upgraded.

Built-in Display:

20.0" TFT

Native Resolution:

1440x900

Details:

This model has a 20.0" TFT active matrix display with a 16:10 aspect ratio and a native resolution of 1440x900. In the 16:10 aspect ratio, it also supports 1152x720, 1024x640, and 800x500, and in the 4:3 aspect ratio it supports 1024x768, 800x600, and 640x480. Apple additionally reports a "typical" brightness of 200 cd/m, contrast ratio of 400:1, and viewing angle of 120 degrees horizontal and 90 degrees vertical.

2nd Display Support:

Mirroring Only*

2nd Max. Resolution:

1024x768*

Details:

Apple reports that this system has a "VGA output port for video mirroring on an external display or projector", and supports output resolutions of "640 x 480 pixels at 60Hz, 800 x 600 pixels at 75Hz and 1024 x 768 pixels at 75Hz".

Standard Hard Drive:

160 GB (7200 RPM)

Int. HD Interface:

Serial ATA (1.5Gb/s)

Standard Optical:

8X DL "SuperDrive"

Standard Disk:

None

Details:

Apple reports that the slot-loading 8X DVD+R DL/DVD±RW/CD-RW SuperDrive "writes DVD+R DL discs at up to 2.4x speed, writes DVD-R and DVD+R discs at up to 8x speed, writes DVD-RW and DVD+RW discs at up to 4x speed, reads DVDs at up to 8x speed, writes CD-R discs at up to 24x speed, writes CD-RW discs at up to 8x, [and] CDs at up to 24x speed."

Standard Modem:

56k v.92

Standard Ethernet:

10/100/1000Base-T

Details:

Internal modem and 10/100/1000Base-T (Gigabit) Ethernet standard.

Standard AirPort:

802.11b/g (Standard)

Standard Bluetooth:

2.0+EDR

Details:

AirPort Extreme (802.11g) and Bluetooth 2.0+EDR standard.

USB Ports:

3 (2.0)

Firewire Ports:

2 (400)

Details:

Apple advertised that this system had a "total of five USB ports" counting three USB 2.0 ports on the system and two USB 1.1 ports on the keyboard. Two Firewire "400" ports are shared - 8 watts.

Expansion Slots:

AP/BL

Expansion Bays:

None

Details:

Internal AirPort Extreme (802.11b/802.11g) and Bluetooth 2.0+EDR pre-installed.

Incl. Keyboard:

Apple Keyboard

Incl. Input:

Apple Mouse

Details:

N/A

Case Type:

All-in-One

Form Factor:

iMac G5

Apple Model No:

M9844LL/A

Apple Subfamily:

Ambient Light Sensor

Details:

The Apple model number should be unique to this system.

Gestalt/Model ID:

N/A

Machine Model:

PowerMac8,2

Battery Type:

3.6V Lithium

Battery Life:

N/A

Details:

N/A

Pre-Installed MacOS:

X 10.4

Maximum MacOS:

Current

Details:

Please note that this system can run the current version of MacOS X as of the date last updated.

MacOS 9 Support:

Classic Mode Only

Windows Support:

Emulation Only

Details:

The iMac G5 models are capable of using MacOS 9 applications within the MacOS X "Classic" environment. They cannot boot into MacOS 9

Dimensions:

16.9 x 16.8 x 6.8

Avg. Weight:

18.5 lbs. (8.4 kg)

Details:

In inches - height by width by depth, (43 cm, 42.6 cm, 20.3 cm).

Original Price:

US$1499

Est. Current Retail:

US$850-US$1000

Details:

Please note that on average the estimated crrent retail pricing of used systems is updated twice a year (please refer to the date on the bottom of the page for the date last updated).

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