yes
yes
This is not a backup drive, its a USB hub. Its designed to add more USB ports when you do not have enough for all of your devices.
All major operating systems support USB devices.
You cannot use a USB storage media for sending storage on an iPad. You need a computer with iTunes. You could make a backup using iTunes and store that backup on a USB drive, but you still need iTunes to restore it to the iPad.
backward compatible
USB 2.0 supports a maximum signaling rate of 480 Mbit/s
Usb devices
Yes. If you do not have a version of Windows 95 that supports USB directly, you can still use a USB keyoboard by enabling "Legacy USB support" in your computer's BIOS.
Both an iOS or Android device supports a USB port, but only Android devices have a slot for a microSD card.
Computer backup means backing up data from the computer to a USB/external HD/CD/DVD etc. Computer Backup in process will mean a backup is taking place and is in process for backing up data.
Universal storage device (USB) and hard disk drive
It allows to use USB hot-swappable devices, the data transfer is not that bad, and supports huge number of devices.