The PlayStation 3 was physically the largest of the three current-generation home consoles, followed by Microsoft's Xbox 360 and Nintendo's Wii. With never-ending lust by consumers for smaller gadgets, the current configuration was just not cutting it.
What's surprising about the Slim, though, is that Sony was the second-most recent of the three companies to have released its console, yet it's the first to offer a completely new form factor. Microsoft was the first out of the gate with a North America release of the Xbox 360 in late November 2005. Sony and Nintendo followed suit with the PlayStation 3 and Wii, respectively, which were released a week apart from each other in mid-November 2006.
The closest either Nintendo or Microsoft has come to a redesign since is Microsoft, which began including an HDMI port and increasing the included storage, alongside a major revision to the system software which allowed games to be played off the hard drive.
In the case of the PS3 Slim, it's actually the fourth generation of the device. During that three-year period, things like the included storage space jumped from 20GB to 120GB. And a recently unearthed patent at the FCC filing shows that a 250GB model is just around the corner.
So is it normal to release a heavily revised version of a gaming system within three years of the initial release? It depends on who you are. Let's take a look at some notable shrinkage from the last three generations of consoles. I think that you'll notice a trend.
The PS2 was the only console from the last generation to undergo a major facelift. Neither Microsoft's original Xbox nor Nintendo's GameCube underwent any physical changes.
Sony's first major revision was actually its ninth. Sony frequently changed internal components as circuit boards were streamlined, and parts were moved around to deter people from modifying the hardware. The revision, which came less than three years after the launch, added an infrared port to the front of the device, which would allow users to control the built-in DVD player without an IR dongle. It also ran quieter than older versions, which was Sony's nod to the fact that many were using the system primarily as a DVD player.
In 2004, Sony released the Slimline version of the PS2, which moved the power supply outside of the machine, which shrank the size of the device down considerably. It also did away with the tray-loading disc mechanism, and had users place discs inside the device using a flip-up panel. Other changes included the addition of the once-optional (and not free) network adapter inside of the machine so that users could connect their machine to play online matches.
Three years after that, Sony began shipping a version of the Slimline that was a third lighter, followed closely by a version that brought the power supply back into the unit, and did away with the external power brick entirely.
The original PlayStation had the most hardware revisions of any home gaming console due mostly to the fact that it was produced for 11 years and sold more than 100 million units.
While most of the changes were internal parts, its biggest external change was the release of the PSOne in July 2000. This was a much smaller iteration of the hardware and had all new system software and a circuit board that featured smaller chips. Wikipedia)" targetUrl="http://i.i.cbsi.com/cnwk.1d/i/bto/20090820/Genesis_shrink_CNET.png" />
Sega's console combination underwent several distinct revisions over the course of its existence, all of which brought smaller sizes. It's also worth nothing that Sega was not the sole creator of some of its systems, since it allowed licensing to third parties that could build its technology into other pieces of hardware. (For the sake of simplicity we're not including those.)
As for Sega's own hardware, the first and only major change for the 16-bit Genesis was to shrink in size. In 1994, roughly five years after its launch, Sega released a square version of the console which did away with the headphone jack and volume control slider on the front of the unit.
With a smaller version of the Genesis out, Sega had to create a smaller version of its CD-ROM peripheral, the Sega CD to match it. Thus, the Sega CD-2 was born. Instead of sitting underneath the Genesis, it plugged in to the right of it. It was also able to work with the first generation of Genesis hardware via an extender plate.
In 1994 Sega released the CDX, which was a combination of the Genesis and the Sega CD in one piece of hardware. It fizzled with a high price tag ($400) and the impending release of Sony's PlayStation, along with the imminent release of Sega's 32-bit console--the Saturn--and incompatibilities with Sega's third system add-on, the 32X.
Interestingly enough, the CDX was not the end of the line for the miniaturization of the Genesis. In late 1995 Sega released the Nomad, which was a handheld version of the Genesis. It played regular-sized Genesis cartridges and had a 3.25-inch color LCD and button controls that mimicked the Genesis controller. It could also be connected to a TV, so that players could play their games on a normal-sized screen.
Out of all the console makers, Sony is the only one to completely revise its hardware every few years. What's interesting is that those revisions are coming closer together. In the case of the PlayStation (versions one through three), the time between initial launch and major revision has gone from five years down to just three: