With the rapid evolution and the prices finally coming down, how long do you think it will be before RAM is no longer needed as a fundamental part of a computer system?
RAM, or random access memory could be in the form of SRAM, DRAM, FLASH, CMOS, etc. RAM will change in formfactor in the future, but we will probably not evolve away from it within our lifetimes. There will have to be a pretty drastic change in design. Most everything is loaded off the hard disk and into the RAM and run from there. It is what really runs the PC more than any other component.
RAM could move... onto the CPU, the graphics card, or be build directly on the mother board. However, I don't see us eliminating random access memory in a computer system anytime soon.
I see RAM, getting smaller and smaller. I see it evolving in the next 25 years or so, to the molecular level where a certain type of atom is a good conductor and another type of atom makes a good capacitor. Sending two electrons through for a 1 binary bit, one electron through for a 0 binary bit and none through for a failed connection. Taking the entire world's computer power and placing it in the size of a cell phone, and powering it for a few cents a year.