There are services that will pick up electronic goods that you do not use anymore and recycle them.
Yes
apple laptops really need a USB hub. USB hub makes your life easier!
yes
A usb hub refers to USB devices, just basically give you extra usb plugs. This is not related to a network hub.
A USB hub that runs on the power provided though the USB cable (rather than a USB hub powered by an external electrical supply).
Yes you can, but the USB 3.0 hub will only work at the speed of the USB 2.0 port.
A root hub is the socket on a computer's system board to which its USB ports are connected. A computer may have more than one USB root hub.
In regards to the average usb port hub and how many ports are available, this can vary. The average usb port hub can support up to four usb inputs at a time.
a USB hub
Make sure that the hub is actually a USB 2.0 hub, and that it is receiving full power.
The Generic USB Hub is a HI-SPEED USB device and will function at reduced speed when plugged into a non-HI-SPEED port
An active USB hub is a USB hub which has its own power supply. It will come with a DC power adaptor to power it. The USB system in your computer is capable of providing electrical power to devices which are plugged into it. When a large number of devices, or some particularly power-hungry devices are plugged into the USB system, it is possible to overexert this system. An active USB hub shores up this this power reducing the likelyhood of problems. A passive USB hub does not. Additionally, USB devices will often not work properly with more than 12 feet of cable. An active USB hub (or active USB extension cable) can help to overcome this limitation.