The USB is one of the technological advancements that will replace all power connectors owned by different people. This is because the USB designs are cheaper compared to other products such as the 1394 links. This device has a 12 Mbps bus that supports most of the essential videos.Compared to IEEE 1394, USB devices up to127 devices can be linked to one host with similar hubs, while its counterpart, the IEEE 1394 can only support 63 devices at a time. Asynchronous transmissions are most suitable for e-mail applications because message recipients do not have to stay online for them to receive messages from their senders. This is unlike in the synchronous transmissions, where recipients are required to remain online in order to receive messages from senders and hence the asynchronous transmissions completely disregard this inconvenience. Asynchronous transmissions are used in the internet to facilitate communication processes between different people. Frequency-division Multiplexing (FDM) is a multi-signal system that transmits information via a single line or a medium. Each signal in the system has its own sub-channel within the major channel that makes it possible and easy to communicate. It is more effective than using other analog connections that require internet connections such as the telephones. Hence this advancement has digitalism marked all over it and will not disappear easily in the near future.