Unless you share the backup HD only the local user is going to see it. Given that it's a server, it's not a problem. You can also hide the backup with attributes +h +s and many other ways.
Programming Languages have evolved in phases called generations. The five generations of computers are : <span>First Generation (1940-1956) Vacuum Tubes. Second Generation (1956-1963) Transistors. Third Generation (1964-1971) Integrated Circuits. Fourth Generation (1971-Present) Microprocessors. <span>Fifth Generation (Present and Beyond) Artificial Intelligence.</span></span>
Automatic, three speed transmission
Depends on what you are registering for but you will most likely need your First and last Name, Email, and a secure password... that's for most signups.