Voice Over IP (VoIP)
You’ve made a few Skype calls and you’ve looked into digital phone service from your broadband provider, but that’s as close as you’ve gotten to VoIP (voice over IP) technology. Or so you think. In truth, VoIP is revolutionizing the telecom industry, blurring the lines between voice calls and digital networks.
Those prepaid calling cards that offer rock-bottom international rates? VoIP makes them possible. Similarly, a growing number of businesses use VoIP behind the scenes to eliminate long-distance charges between branch offices.
Routing calls over the Internet circumvents traditional telephone company charges, and fewer fees and taxes mean lower prices. Digital calls are easier to direct and manage, which makes them attractive even to traditional telephone companies. Don’t be surprised if soon the landline you’ve lived with forever is replaced by an all-digital alternative–though you’ll likely be none the wiser.
Graphics Acceleration
NVIDIA’s 9800 GX 2 graphics card is dual-GPU-based.
Thought your fancy video card was only good for gaming? Think again. Its graphics processing unit (GPU) is really like a second, highly specialized CPU. When it comes to certain kinds of complex math, its performance puts your desktop CPU to shame.
Until recently, all that power went to waste when you weren’t Chalking up frogs. But computer scientists are finding novel ways to use GPU acceleration to speed up applications off-screen, as well. For example, a Stanford university project — which uses many PCs around the world acting together as a supercomputer to assist protein folding-related disease research–can offload calculations to the GPU to multiply its performance many times.
Because the kind of calculations used to draw 3D graphics are also applicable to many other problems, GPU acceleration is potentially useful for a wide variety of applications, from math-intensive science and engineering to complex database queries. Newer, even more complex chips–such as nVidia’s Aegis physics engine–can do even more. No wonder nVidia has begun working on chips for the workstation market.
Increasingly, your PC’s performance won’t depend on the speed of any single chip. As AMD and Intel get into the game, expect future Destop CPUs to incorporate CPU and GPU capabilities into a single, multicore package, bringing the best of both worlds to gamers and nongamers alike.