| A | B |
| Ball mouse | Type of mouse that uses a ball located in the bottom of the mouse to track movement and move the cursor |
| Compressed air | Product used to clean computers by blowing dirt and other debris from sensitive components |
| Computer lock | Device used to secure laptop computers to prevent theft |
| Cookies | Pieces of text that are stored on the computer as you surf the Internet that help Web sites track your activities |
| Dusting | Very dangerous type of drug abuse using compressed air; can be fatal |
| Electrostatic discharge | Discharge of static electricity that can damage electronic circuits |
| Optical mouse | Type of mouse that uses laser light to track movement |
| Paper jam | Common problem with printers where the paper becomes caught in the printer mechanism and prevents proper operation |
| Power outage | Complete loss of electricity that causes a computer to shut down; can result in loss of data |
| Recycle Bin | Folder on a PC where files are placed when they are deleted |
| Replicate | Process of reproducing a problem when troubleshooting a computer |
| Sag | Drop in electrical voltage that can cause a computer to spontaneously reboot |
| Spike | Sharp increase in electrical voltage that can cause damage to computer components |
| Surge | Sudden increase in electrical voltage that can cause damage to computer components |
| Surge suppressor | Device used to control fluctuations in electrical voltage and prevent damage from electrical spikes |
| Temporary Internet files | Files stored on a computer while surfing the Internet. These can be cookies or other data files downloaded from Web sites |
| Transformer | Component within a computer power supply that enables it to handle both domestic 115 volt or foreign 230 volt AC power |
| Trash Can | Folder on an Apple OS X computer where files are placed when they are deleted |
| Uninterruptible power supply | Device used to provide temporary battery power during power outages |