15-20 feet, remember it has to be line of sight.
15-20 feet it needs to be in view of the infrared
Depending on what speed your infrared port is. It is normally faster to use a fire-wire port.
9
The port can be enabled or disabled through the CMOS setup.
Essentially IR port on PDAs or a computer is a serial port with physical connection in form of Infrared light instead of electrical wires. These ports have infrared LED transmitter and Infrared photo diode receivers. You have to have IR built-in to your computer or you have to buy an adapter for it
100 meters
None. The IrDA is only important if you are using an infrared transceiver on the serial port. This is seldom found in most computers.
A USB port is the type of port that is used by an infrared mouse. This type of mouse does not require batteries and uses infrared light in order to operate.
Sorry, but it is impossible to download something through Infrared if only one device has Infrared capability.
No, infrared port uses IR radiation and bluetooth uses radio frequency radiation.
Standard serial ports have either 5 pins or 25 pins. Although are also serial ports, USB and PS/2 ports do not obey this rule.
Infrared or IRDA port is a wireless serial port which uses Infrared (invisible) light for transmission and reception of data. (Infrared light is also used in TV remote controls). Infrared port on a laptop computer can be used to transfer data to and from another computer or a mobile device like a PDA or mobile phone without wires over short distance. Infrared port will need a line of sight communication path i.e. to establish a connection and for reliable communication Infrared ports of two devices should face each other. Not all laptops have Infrared ports. Some have these built in the machine and for some if needed you will have to add an Infrared port device on USB port. - Neeraj Sharma