I have received a WD Passport as a gift to back up my Dell Desktop but I have missplaced the instructions as to how to use it. Do you have them available and, if so, what is the cost of obtaining them? Also, can I use the same unit to backup my Sony VAIO laptop? Buy WD 4TB My Passport for Mac USB 3.0 Type-C External Hard Drive featuring 4TB Storage Capacity, USB 3.0 Type-A & Type-C, Data Transfer Rates of up to 5 Gb/s, 256-Bit AES Encryption, Bus Powered - No External Power Required, Preformatted HFS+ for Mac, Windows Compatible with Reformatting.
The easiest way to make backups of a Mac is through Time Machine > http://support.apple.com/kb/HT1427
To use Time Machine, open System Preferences > Time Machine > Select Disk, and choose your external drive. The initial backup will start, and it may take several hours, depending on the amount of data Time Machine has to copy to your external drive.
https://visualclever626.weebly.com/blog/opencv-for-mac. Since then, Time Machine will make automatic, hourly backups, always that your Mac is turned on and the external drive connected. Also, if you are using OS X Lion, local snapshots will be enabled > http://pondini.org/TM/30.html