| A | B |
| BIOS Chip | wakes up the computer when you turn it on and reminds it what parts it has and what they do. |
| Heat Sink | Dissipates heat generated from CPU |
| Random Access Memory | remember what you tell them and can even change to remember new information. But, when the computer is turned off, it forgets everything you told it. |
| Read Only Memory | good at remembering, but cannot change it's mind. It holds information that is built into it. |
| Expansion Slots | Allows for expansion of things such as another graphics card |
| Video Card | handles graphics that are displayed on the monitor |
| USB Ports | Allows for insertion of peripheral devices that have USB plugs |
| CMOS | small amount of memory on a computer motherboard that stores the BIOS settings. |
| CMOS Battery | Powers the CMOS |
| Hard Drive | a set of rigid storage disks that is hidden inside the computer because they are not meant to be removed. Data is magnetically read from and written to it. |
| Power Supply | supplies electricity to the other components inside the computer. |
| Motherboard | it is like a mother to all of the other circuit boards. |
| Sound Card | contains special circuits for operating the computer's sound. |
| Network Card | Allows for Computers to talk to each other on a network |
| Central Processing Unit | It controls information and tells other parts what to do. Known as Brains of the computer |