Unfortunately not, if your port is USB 1.0, you can only run a USB drive that is 1.0 and you will have a very hard job finding one of those these days.
You can run a 2.0 through a 1.1 port, but it will only perform at 1.1 speed.
There are four pins in a USB port. The positive, negative and Data positive, data negative.
The space between each port is adequate for connecting 10 normal sized USB devices simultaneously.
SuperSpeed USB 10 Gbps (USB 3.1)USB 3.0: 5Gbps
Yes, most motherboards these days have connections for at LEAST four USB 2.0 devices. In addition to this, USB is a scalable connection so using hubs it's possible to connect up to 255 devices to one USB port (realistically the performance will be terrible, so you should limit yourself to about 10 per port). So yes, you can easily have that many ports off one system. Companies make 4 port, 7 port and even as high as 40 port USB hubs.
A Serial port looks like this: http://www.ergocanada.com/ergo/tips/serial_port.jpg It is used to connect your PC to a monitor or projector. A USB port looks like this: http://www.novopc.com/wp-content/uploads/2008/10/usb.jpg It is used to connect a wide variety of peripherals to your PC
One. A USB hub is plugged in via a USB port, that port only uses 1 IRQ. So all devices on the hub use the same IRQ. You could have a hub with 10 ports still using 1 IRQ.
The USB 1.0 and USB 2.0 circuitry is different. In a desktop computer, the easiest thing to do is to add a new ports card, containing one or more USB 2.0 ports, plugging it into one of the computer's internal PCI bus sockets. Sometime in 2009, USB 3.0 adapters and devices should come to market. These could operate at speeds up to 10 times the speed supported by USB 2.0.
Yes. Just plug the USB in like you would do on a console and plug the small green cable into the green audio port on the back / side of your computer. You will need to have a USB port near it though because the USB and audio cable cannot move more than 10-12cm away from each other.
There is no minimum or required number for USB ports on a laptop. Depending on the age and design of the laptop, it could be anywhere from zero to ten. I have seen only 2 USB ports on older laptops, most of the new ones atleast have 4 USB ports. Netbooks(10" & 11") have not more than 2 USB ports. If in anycase you need more USB ports, you could buy an USB hub for as less as 10$, which will add 4 more ports to your laptop.
PCI has more bandwidth than current USB standards. A USB 1.1 port cannot achieve more than about 10 Mbits/s, slower than most commodity routers / Ethernet cards today. A USB 2.0 port is capable of 100 Mbits/s, but is not capable of Gigabit speeds. A USB NIC may also have slightly more latency than a PCI NIC, which may make it unsuitable for certain applications like gaming or media streaming.
you can get a USB at any Walgreen's for about 10 dollars or so depending on how much the USB holds.
A "double USB cable" is used to provide extra power to an external device, such as a hard disk in an external enclosure. It consists of two USB A-type plugs connected by a short length of cable (10-15 cm), with one of these two plugs connected by a longer cable (up to about 1 metre) to either a third USB A-type plug or a mini USB plug. You connect the "third USB A" plug or the mini USB plug to your external device enclosure and the USB A plug at the other end of the long cable to a USB port on the laptop. One USB port can provide up to 500 mA of current. If your external device needs more current, it will grind to a halt or even refuse to start moving at all. This will probably be true for bigger hard disks, CD burners and similar devices. You can then plug in the other USB A plug (the one at the and of the short cable) into an adjacent USB port on the laptop to double the amount of current available to the external device. Also seems to crop up on the Internet as a "dual input USB cable".