Pratistha B's CSC231 2014 Page
Pratistha Bhattarai CSC231 10/07/2014
The purpose of this lab is to take apart a Central Processing Unit (CPU) and look at its various parts. The CPU is responsible for carrying out the instructions of a program and performs basic arithmetical, logical, control and input/output operations of the system. As such, opening up a CPU and looking at how the different parts work together gives us an insight into how a computer works.
1. The CPU that I took apart was a Dell DHM.
2. The following parts that were visible when I removed the cover: _motherboard _ processor on motherboard _ RAM _ hard drives _ fans _ disk drive _ video card _ power supply _ cabling system
3. The processor is under the cooling fan. It is a Intel Pentium 4, 3 GHz, processor.
4. The RAM is on the motherboard, to the right of the fan (with the CPU standing up). There are 2 RAM sticks, each is 512MB so the total is 1024MB. They are made by Infineon and were assembled in Portugal.
5. The CD/DVD Drive is on the upper front of the CPU.
6. The power supply is above the fan and has a power socket attached to it on the outside. The maximum power it can output is 250 Watts.
7. The cables power the hard drives and also connects them to the motherboard.
8. The hard disks are below the CD player. There are two hard disks, one can hold 40GB of data and the other one can hold 80GB of data. The latter one is shown above.
10. When facing the front of the PC, the motherboard is attached to the right wall. The lines allow electricity to be conveyed to the different components in the on the motherboard.
11. The crystal is on the bottom right side of the motherboard, when seen as in the image of the opened up CPU. The crystal is used to create electrical signals with very precise frequencies.
12. The motherboard’s battery is used for low-level system functions such as for powering the real-time clock and storing a computer’s input/output settings.