Fire Wire

Fire Wire is a quick as a flash outside bus standard that supports data transfer rates of up to 400 Mbps (400 million bits per second). The name FireWire has essentially been trade named by Apple; FireWire is also known as IEEE 1394. (IEEE stands for the Institute of Electrical and Electronics Engineers). A single 1394 port can be used to connect up to 63 peripheral devices and is a lot faster than USB 1.1. It supports both bung and Play and warm plugging and also presents power to peripheral devices. When IBM designed the PC, they wanted to simplify the installation, programming, and operation of devices. Because virtually every peripheral wants both an IRQ and I/O addresses. For serial devices, the required combinations are called COM ports. For parallel devices, they are called LPT ports. The word “port” is used to illustrate a “portal” or two-way admittance. Ports do make installation easier. Think about modems; many do not have a setting for IRQs or I/O addresses. In its place, you set their COM port. When one first-rates a COM port, they actually allot the IRQ and I/O address. If you set a modem to COM1, that means you are surroundings modem’s IRQ to 4 and the modem’s I/O address to 3F8.