Kingston Hyper X
The bits of address bus inform the memory(Ram) which particular element is to be read or write in memory.
RIMM
Ram bus Inline Memory Module
No. All RAM has to run at the same speed. The USB bus is much slower than the memory bus inside.
RAM memory
The northbridge chip. The northbridge connects to the CPU through the front-side bus (FSB) and connects to the RAM through the memory bus.
If you have a mix of RAM devices with different speed capabilities on a motherboard, the memory bus will work on speed of the slowest memory. Then it does not matter which slot you put which memory. - Neeraj Sharma
Memory mapped buses helps in the extension of the address of the physical ram through which the devices can access the address
RAM (Random Access Memory)
A memory management unit (MMU) is a small device between CPU and RAM recalculating the actual memory address, for example to provide an abstraction of virtual memory or other tasks.
The main function of the front side bus is to connect the computer to the motherboard. It also connects the computer to the RAM or random access memory.
The specifications are memory chips and memory modules. The DDR PC3200 RAM is a popular choice when one has to specify in this specific memory equipment.