I have heard that p4 is 32bit the new amd is 64bit and i think the g4(mac cpu) is 64bit. Has a 128 bit cpu been released yet? And how far have we come with the ide bus? is it still 32bit? whats up with the ide bus, please show you opinions, i want the dl on this one!

"Has a 128 bit cpu been released yet?" Look in a PS2. (newer) GPU's commonly have 128bit global register addressing. "is [the IDE bus] still 32bit?" Well, this would require reworking of the entire system, including drivers, drive controllers, and ATA specifications (we've had enough of those). Address bandwidth in a single packet (if you want to call it that) is not the real concern. Bandwidth and featureset are the present demands. Backwards compatibility is also very important to keep in mind.

http://www.pdc.kth.se/~pek/64vs32bits.txt An interesting article, read it and you will learn a lot. The playstation uses a 64 processor. According to this extremely technical info!

"The processor in the PlayStation2, the Emotion Engine, consists of a MIPS III RISC core and two vector units [3]. The MIPS III is a 64 bit architecture with 64 bit integer registers. The vector units each has 16 16 bit integer registers and 32 128 bit floating point registers." That's right, and hence I didn't call the PS2 a 128bit machine. When you cite a bit value, you are generally talking about the width of general purpose registers, not floating point registers (which is what the PS2 128bit vector cores are). Integer registers are a type of GPR. In the PS2 case, the GPR's are 64bit. By the same confusing technicalities, the AMD x86-64 architecture has 64-bit registers, but not a 64bit instruction register. The execution cycle still operates at 32bits. Still, it is a 64bit architecture because the GPR's are 64bit.