Future Communications
At present we are much nearer to the time when images, voices and information can easily be transmitted to different places of this planet. So now let us deliberate on the outlook for the future.
The newer wireless data service is being put in place and promises us good choices. Let us discuss few such latest developments.
Digital Cellular Phones
The cellular companies are in process to rectify the problems they are facing regarding the faulty transmission of data by shifting to digital network which will transform your voice to digital bits which are then transmitted through the airwaves, decoded back to the voice by a handset.
Personal Communication Services
These are special phones called PCS phones which are gaining popularity by the day. This service is better in quality and coverage besides being less expensive. They use the new band of frequencies (1850-1990 MHZ) having the transmitters and receivers in the thousand of different micro cells which are much smaller than usual cells of current cellular phone network.
Gigabit Ethernet: Sending data at Supercomputer Speeds
Many of the corporate networks are based on Ethernet which was first devised in 1970′s. Then came fast Ethernet in 1995 which transmitted data at 100 MB per second.
Now a much progressive technology is coming in the form of Gigabit Ethernet which can move data at 1 Gigabit per second.
Bluetooth: The Next Big Wireless Wave?
This is a wireless technology which makes use of a shortwave radio
Link which allows up to eight devices to efficiently communicate in an area of 33 feet with each other. This permits the formation of own personal networks by using laptops, cell phones or PDA’s for exchanging mails, information or schedules.
Photonics: Optical Technologies at Warp Speed
The photonics is a science of sending the bits by using the light pulses which are carried by hair thin glass fibers. This glass fiber has been used in the fiber optic lines for carrying the light pulses which represent the data and voice for long distances. Now photonics have achieved more breakthroughs which permit the glass fiber to carry more light signals than they carried before.