RSI can be caused by doing the same thing “LOTS” of times. It is also can be caused by the use of keyboards and mice. The primary reason there is an “ERGONOMIC” market for input devices. RSI can be avoided by using curved keyboards, mice, plus stretching and taking breaks.
there are 3 main specs for RAM: SIZE in MB/GB (like 16MB or 1GB), SPEED in MHZ and any error protection, like ECC or parity.
generally, the more RAM your PC has, the happier it will be. The Law of Diminishing Returns may apply, though, depending on your apps, and you’re OS. RAM is the temporary storage place for data the CPU needs to work on. It is called temporary, because if the power goes off, everything in RAM goes with it into the bit bucket.
There are two big guns making cpu’s right now:
- INTEL – the Microsoft of the CPU world. Makes CPU’S like the old 486, Pentium and Pentium-X brands, Celeron and Xeon. The Celeron is their “Low-Level” chip, while the Pentium-X is the mainstream chip. Xeon’s are for servers.
- AMD (Advanced Micro Devices) – slowly but surely, they’ve been chipping into INTEL’S market share by producing CPU’S that perform comparably to INTEL. K6-X processor was when AMD hit the mainstream. Current offering are DURON similar market to Celeron, Athlon and Thunderbirds.
CPU’S have a small amount of really fast RAM called CACHE. The various levels of cache 1 and 2 are primarily on the same die as the CPU itself. The Cache holds data the CPU frequently uses, thus increasing the speed at which that data is used. Cache is measured in KB / MB, and ranges from 128kb to 2mb.
