What is CPU,FSB,System bus,Core,Thread,Cash.

The CPU is the Central Processing Unit.

There 64bit type and 32bit type. It also means data volume that can be processed by one order.64bitCPU can calculate in 32bit, 32bitCPU is impossible to calculate with 64bit.Note the type of OS.

The clock frequency is that the number of instructions that can execute in one second. "Hz" is a unit.You may be aware that the greater the number of early processing. However, after the number "X 2" CPU is written is a multi-CPU. Can not be evaluated so easily.

The system bus is transmit and receive speed. "Hz" is a unit.System bus is also called a data bus, FSB, QPI, DMI, HyperTransport. "Good data bus CPU" Even with the "Bat data bus Memory" If you can not demonstrate full performance of the CPU.

System bus clock frequency have a finite.You need to stored temporarily the data queued for the CPU.May be used to store temporary data in physical memory. However, the CPU was made temporary location to work more quickly. It is the cache."B(Byte)" is a unit.

Core is to calculate the physical part, there was only one core in a single CPU.
Now, there are two cores in one CPU. It is called a dual-core. Its CPU is recognized that there are two CPU from the OS.
2-Dual,4-Quad,6-Hexa,8-Octal....The number of cores is a growing trend.
Often denoted as "X2" "X4".

Thread is the smallest unit of executable programs.
Single-core processor can be one operator at a time.
Dual-core processor can be two operators at once.
However, it can also be multi thead with Single core.(hyper-threading-technology)
4core-8thread proceccer is recognized that the eight processer from the OS.But, it only has virtually doubled in a single core. One of the core processing power does not change.

Shape of the CPU socket has a many pattern.If you try to replace the CPU, may not be physically connected to the CPU.

When you match the shaped the socket and CPU, if bad data bus, CPU will not be able to exert sufficient performance.

From the above, replace the CPU is not recommended unless they are professional.

When the CPU to calculate,The CPU generates heat.The CPU has a thermal and electrical resistance changes. and the CPU will not be well calculated.

To prevent that, the CPU is always if there is fan cooled.

Most of the CPU are prone to dust deposition.because it is cooled by air.

When the dust on the heat sink and cooling fan CPU, CPU will be unable to fully demonstrate good performance of the CPU can not waste heat.

PCs are used for many years it is recommended that you clean again. (You will only need to remove the dust adhering to the CPU, it may improve the workings of your computer.)

To avoid performance degradation due to dust deposition, the "water cooled" or "fan-less" there.