Yes, they can be attached via the USB ports, there are many USB docking stations available that support various kinds of other ports. You should have a look at Amazon.com to check which one suits your needs.
You can't. If you want to have 2 displays, you have to buy a projector with 2 VGA ports
Yes, must laptops and notebooks have USB ports, but its best to check before purchasing one.
You need an HDM, DVI or VGA for connecting a monitor depending on the monitor you have. If you do not have any extra ports there are adapters available to convert usb to one of the signals needed.
Most newer laptops have firewire ports and VGA out, (15 pin as opposed to 9 pin serial connections) and some include RCA (composite output) or S-video out connections.
Most modern laptops lack any sort of "legacy" ports such as serial ports, let alone them having two. Some older laptops did have multiple serial ports, but there's little point in recommending one because there's no guarantee you could find one. There are options for adding serial ports to a laptop, such as a USB to serial adapter, or a PC card with additional serial ports.
Many modern laptops don't have a serial port at all. The most common serial ports on desktop computers were the old style of mouse ports that look like this picture: http://i32.tinypic.com/29vtir.jpg
Yes, as long as it emits wifi or has the sufficient network ports it will.
A USB hub can be attached to any of the existing USB ports to provide additional connectors.
The laptop has 2 usb ports on each side. The ports are approximately 1/8" apart.
It is an extra set of USB ports for a computer.
A laptop touch screen offers several benefits over a regular laptop. It reduces the need for a mouse, mouse pad and the requirement to download and install mouse drivers. The device also eliminates the need to troubleshoot malfunctioning USB ports that interfere with the use of a mouse. Laptop touch screens are less expensive than regular laptops and give you the option of larger keys that make it easier to type.
The Saga Premium seats on this airline offer benefits such as extra legroom, priority boarding, enhanced meal options, and a more comfortable seating experience. Features include adjustable headrests, personal entertainment screens, and USB charging ports.