Nails provide one of the best clues to help determine the age of historic buildings, especially those constructed during the nineteenth century, when nail-making technology advanced rapidly. Until the last decade of the 1700s and the early 1800s, hand-wrought nails typically fastened the sheathing and roof boards on building frames.
BitLocker Overview:BitLocker is Microsoftâs full disk encryption solution, which protects all of your data from theft, hacking or loss. BitLocker does this by encrypting the entire drive that hosts your Windows operating system and all your data. BitLocker is available for all devices, including... more Â».
Encrypting Everything. Full-disk encryption protects everything on a hard drive--even if the drive departs in someone else's pocket. BitLocker, a utility built in to Vista Enterprise and Vista Ultimate, provides such protection. You'll find it in the Windows Security Control Panel. Other Windows users--and Mac and Linux aficionados--have options as well. TrueCrypt is a free, easy-to-use open-source encryption product maintained by an active development community. If you feel more comfortable working with commercially supported, full-featured software, consider PGP Desktop ($99).For encrypting USB thumb drives, Windows users can nab the free Rohos Mini Drive download.