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At this point, most people have at least heard of blockchain, but it's become something of a running gag about how complex the technology can be to understand. You probably associate the technology with Bitcoin, but while this was the first real-world application of blockchain technology, it's far from the only use case. What is blockchain? While some people equate the invention of blockchain with Bitcoin's pseudonymous founder Satoshi Nakomota, the concept has been around since 1991, first coined in an article by researchers Stuart Haber and W. Scott Stornetta entitled "How to Timestamp a Digital Document “. Also known as distributed ledger technology (DLT), the blockchain is a record that anyone can add, that nobody can change, and that is not controlled by any one person or entity. The core concept is a public ledger with copies distributed across multiple sites, called nodes, which typically refer to individual computers with copies of the ledger. This is wh...

File history is a useful backup tool in Windows 10, which means you'll never lose a file again, even if a hard drive disaster occurs. Make it even better with these simple Windows tweaks. A USB drive, which can be enabled in the Control Panel, is required to store File History backups. Once enabled, File History first backs up everything in your personal C:Usersyourname folder, such as B. Documents, Pictures, Videos, Music and some others. All changed files are then backed up every hour. If files are lost on the PC hard drive, you can find them on the USB hard drive in the "File History" folder. It even saves multiple versions of files as they change. No special software is required to access the backed up files, although the Recover personal files Link in File History in Control Panel is best. File History has already been covered, and I've shown how you can recover gigabytes of disk space by cleaning File History. I also showed how to use a NAS drive with...