| A | B |
|---|
| surge strip | filters out excess power variations and outages |
| UPS | uninterruptible power supply |
| head crash | when the read/write head of the hardrive touches the disk surface and damages the sectors that hold your data |
| bad sector | an area of your disk that cannot contain information because it is damaged |
| Error Checking Tool/Scandisk | Windows utility that allows you to check your hard drive for bad sectors |
| virus | a small computer program that can damage your computer and/or your computer files |
| antivirus software | program that checks your computer files for viruses and removing them |
| backup | a copy of the files in your computer, saved to a different location than your hard drive |
| full-backup | making a copy of all the files in your computer hard drive |
| incremental backup | making a copy of only those files that have been created or modified since the last full-backup |
