Sadly though, with the high frequency clock rates (GHz), designing your board to incorporate the entire old machine is not easy or cheap, and worse, it will emit just as much heat as the old system did on it's own. "This works well enough when you look at the price list for components, as the old chips have become cheap enough to include without bumping the cost of the new system. CPU, GPU, sound chips, ideally the whole caboodle. "The best way to support your old console, in terms of broadest support of all old games, is to actually include the hardware of the old system inside the new one. "What's different now is the increased complexity in hardware and software, and heat issues," says veteran coder and game designer Martin Hollis. The PlayStation 2, meanwhile, had the original PlayStation chipset built in, so it ran pretty much any PSone title – and when that chip wasn't being used for backwards compatibility it doubled as an input/output processor, which was pretty canny. The Nintendo Wii, for example, was in many ways just a more powerful version of the older GameCube, so backwards compatibility was reasonably straightforward – indeed the Wii originally had GameCube controller sockets and two memory card slots. In the former case, it involves actually including some of the chips from the old machine in the new machine.
#PS4 BACKWARDS COMPATIBLE SOFTWARE#
There are effectively two ways to provide compatibility with previous consoles: through hardware implementation, or via software emulation of the old machine. How hard can it be? Well, the answer is, "very hard and getting harder with every successive generation". So if there's enough desire out there for backwards compatibility to warrant a hilarious internet trick, why don't the manufacturers supply it? These are expensive, technically advanced consoles, after all. It didn't do that, however, it instead locked the machine into an endless reboot cycle, effectively rendering it useless.
#PS4 BACKWARDS COMPATIBLE CODE#
A recent post on the notorious 4Chan forum encouraged gamers to access the developer mode on their new Xbox Ones and then enter a code that would ostensibly "unlock" the machine's hidden ability to play Xbox 360 titles. But there are clearly enough consumers who do want backwards compatibility to become the targets of an internet hoax. There are plenty of gamers who don't care about this – they'll keep their old machines anyway.
#PS4 BACKWARDS COMPATIBLE PS4#
You can't put a PS2 game into PS4 and expect it to work, just as your Xbox One will shrug indifferently if you slot in, say, the original Halo: Combat Evolved. Take a look at the sleek new PlayStation 4 and Xbox One consoles – neither is backwards compatible with their predecessors. Unless you have a Wii U, which steadfastly supports its successful predecessor, the present doesn't want anything to do with the past. Now however, it seems that for Sony and Microsoft, backwards compatibility, is itself a relic. This was a handy feature for people who didn't want to have multiple plastic boxes under their television sets, or for those who didn't own the previous device, but did want access to its inevitably much larger and cheaper array of games.
Once upon a time, when you bought a new games console, it was often possible to play most of the games designed for the previous machine.
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