It depends on the type of ports needed. If you need more USB sockets, you can simply plug a USB hub into a USB socket. However, if you need other types of ports (like display ports, network ports, 9 or 25-pin serial ports, SATA sockets etc)., or you don't want to use a USB hub, then you would have to install an expansion card.
And what, exactly, would you connect them to on your computer? You can get a hub to extend existing USB 2.0 ports, but there are no external buses with enough bandwidth to install a USB 2.0 controller.
First i would install all the necesary drivers needed on the computer.
ports of a computer and its functions
You don't need to install anything in most cases. Just plug-in to any of the available USB ports. Drivers will be installed automatically.
Yes, you can install multiple hard drives in your computer. If you have multiple internal bays then you can install drives inside the case. If not, you can buy external Firewire and USB drives that attach to the ports on the back of your computer. If you are unfamiliar with opening your computer, then choosing an external solution is the easiest and beth method.
if the Dell computer has USB ports, then all you would need is the USB-iPod cable and download/install iTunes. If you system is really old and only have serial ports (9-pin male ports) and no USB ports, then you would need to get a PCI USB card installed into your system. Do not use Serial-USB adapters, as they do not always work.
The number of ports on a computer depends on the type of computer it is. The type of ports they have--for example USB, headphone, or HDMI--also varies greatly from computer to computer.
Ports are like doors to a computer each computer has many ports. Without any open ports your computer wouldn't be able to access the internet, to find open ports you can try a portscan
POrts are being blocked: UDP 5060, 5061, or 5070 Also it needs ports TCP 443 open
aids
Loopback adapter
There is no requirement for the number of Ethernet ports on a computer. There can be 0, 1, or even 1,000 Ethernet ports.