103b bb 2012f

From CSclasswiki
Jump to: navigation, search

PC Demolition Lab

The visible parts of Dell OPTIPLE GX 280

On September 25, 2012, my partner, Joonyoung Lee, and I took a PC (Dell, OPTIPLEX GX280) apart in CSC 103. The results of all the students are made as a report and uploaded on their own wikipage.

A Diagram of the visible parts

Visible Parts

The parts that were visible when I removed the cover are wires CD Drive, motherboard, fan and cables.

  • Wires
  • CD Drive
  • Motherboard
  • Fan

CD Drive

CD Drive
  • CD-Master 48E Model Sc-148
  • Maker: Samsung
  • According to Techterms.com, "Each drive operates by spinning a disk and reading data from it using a small component called a drive head. CD and DVD burners include a high-powered laser that can imprint data onto discs."(in Techterms.com. Retrieved Oct. 9 2012, from http://www.techterms.com/definition/diskdrive).

Hard Disk

  • Hard Disk is located under the CD Drive and Disk Drive.
  • Same technology is used for floppy disk.
  • According to Techterms.com, "when you save data or install programs on your computer, the information is typically written to your hard disk. Because the data is stored magnetically, information recorded to the hard disk remains intact after you turn your computer off. This is an important distinction between the hard disk and RAM, or memory, which is reset when the computer's power is turned off." (in Techterms.com. Retrieved Oct. 9 2012, from http://www.techterms.com/definition/harddisk Techterms.com).
Hard Disk: Platter, Magnet, and Heads
  • The following are the parts of the Hard Disk:
  1. Platter
    1. a spindle of magnetic disks
    2. records and store information
  2. Magnet
    1. Magnet generates magnetic field to move the heads.
  3. Heads
    1. Heads move due to the magnetic force to perform reads and writes.


RAM placed between the fan and CD Drive
  • Random Access Memory
  • Maker: Samsung
  • 1 GB Ram (512 MB/ per RAM )
  • According to Kioskea.net, "RAM (Random Access Memory) is used to store data while the computer is running; however, its contents are wiped out as soon as the computer is switched off or restarted, as opposed to mass storage devices such as hard drives, which keep information safe even while turned off. This is why RAM is called volatile." (in Kioskea.net. Retrieved Oct. 9 2012, from http://en.kioskea.net/contents/pc/carte-mere.php3 Kioskea.net).

Power Supply

Top righthand corner of the photo is Power Supply


  • Cables are for connecting every part of the computer and supplying power to each part.
  • Cables are shown in the photo of Power Supply.


  • Fan is for cooling the computer.
  • According to Wikipedia, "A computer fan is any fan inside, or attached to, a computer case used for active cooling, and may refer to fans that draw cooler air into the case from the outside, expel warm air from inside, or move air across a heatsink to cool a particular component. As processors, graphics cards, RAM and other components in computers have increased in speed and power consumption, the amount of heat produced by these components as a side-effect of normal operation has also increased. These components need to be kept within a specified temperature range to prevent overheating, instability, malfunction and damage leading to a shortened component lifespan." (in Wikipedia. Retrieved Oct. 10 2012, from http://en.wikipedia.org/wiki/Computer_fan).


Processor is encased in a metal case
Close-up of Processor
  • It is located on the motherboard underneath the fan.
  • It is encased in a metal case.
  • Brand/Model Number:Intel Pentium 4
  • generally ranging from 1 GHz to 3 GHz.
  • According to Wikipedia, "a central processing unit (CPU), also referred to as a central processor unit,[1] is the hardware within a computer system which carries out the instructions of a computer program by performing the basic arithmetical, logical, and input/output operations of the system." (in Wikipedia. Retrieved Oct. 10 2012, from http://en.wikipedia.org/wiki/Central_processing_unit).
  • According to Techterms.com, "its basic job is to receive input and provide the appropriate output. While this may seem like a simple task, modern processors can handle trillions of calculations per second." (in Techterms.com. Retrieved Oct. 9 2012, fromhttp://www.techterms.com/definition/processor).


Motherboard is placed on the bottom of the computer
Close-up of Motherboard
Crystal is the oval shaped metal piece. Gold and silver electronic wires are shown.
  • Motherboard is the green silicon in the bottom of the computer.
  • It connects all of the computer's essential components.
  • According to Techterms.com, "the motherboard is the main circuit board of your computer and is also known as the mainboard or logic board. Attached to the motherboard, you'll find the CPU, ROM, memory RAM expansion slots, PCI slots, and USB ports. It also includes controllers for devices like the hard drive, DVD drive, keyboard, and mouse.' (in Techterms.com. Retrieved Oct. 9 2012, from http://www.techterms.com/definition/motherboard).
  • The following are some of the parts that I found on the motherboard:
  1. Crystal
    1. Crystal gives a process a speed.
      1. Frequency is determined by a crystal.
  2. Small Battery
    1. It is for an internal clock to keep track of the time when the computer is not powered on.
  3. Lines
    1. Lines on the motherboard are electronic wires printed on the motherboard.
      1. They transport information to the processor to memory and vice versa.
      2. Also, they are for bitts to move through places.