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».
BitLocker lets you encrypt the hard drive(s) on your Windows 7 and Vista Enterprise, Windows 7 and Vista Ultimate or Windows Server 2008 and R2. BitLocker will not encrypt hard drives for Windows XP, Windows 2000 or Windows 2003. Only Windows 7, Vista and Server 2008 include BitLocker. BitLocker drives can be encrypted with 128 bit or 256 bit encryption, this is plenty strong to protect your data in the event the computer is lost or stolen. BitLocker protects your hard drive from offline attack.