No they now have CPU in the GHz rannge and RAM 1000+ MHz
Yes it will 1333mhz is the bus speed of the CPU, however the RAM speed is DDR 2 1066 which means 1066 x 2 bandwidth making it 2132 which is higher bandwidth than the CPU anyway.
You can use a program like CPU-Z, which will tell you the speed (in MHz), the timings and the make and model of the RAM.
The most important thing to watch is that the mhz speed of the Ram matches the cpu operating freqeuncy. Not matching them can cause erratic behaviour of the CPU
No. The hard drive's speed is independent of the processor. However, a slow hard drive can reduce the performance of the computer overall, especially if the computer has insufficient memory to meet the users' demands and has to cache a lot of data.
CPU operates from 166 MHz to more than 3 GHz system can operate from 133 MHz to 400 MHz. CPU is faster than the system bus
A system bus frequency is 1600 MHz. A CPU frequency is 166 MHz to almost 4GHz.
2.
RAM can be part of the CPU.
I think it is Mhz or Ghz where 1 Mhz = 1,000,000 Cycles.
MHz
The only thing that affects the decision on RAM is a motherboard. Your motherboard can only support a certain type of RAM.