The first grid computing network was established by some German engineers in way back 1990’s that had around 100 computers running simultaneously.

As no clear information was available to engineers about the underlying database architecture, companies deployed massive parallel processing units and number of middleware servers to ensure proper working of computer network.

The high operating cost and problem of cooling grid database computing was introduced which helped in load sharing by introducing multiple quad or dual core severs.

Grid databases though came into existence just 5 years back have already become popular because of the advancements seen in SOA applications like server clustering and server visualization. Not only does the grid databases help improve the efficiency, server availability, scalability these databases also help the company in saving precious millions through its various offerings.

Increased efficiency by providing load balancing, server clustering and other application grid technologies. On demand provisioning, predictive monitoring helps in increasing business agility.

Good service management and disaster protection assist in increasing sever ability.Help in building green office by deploying best energy saving techniques and by server consolidation.

Virtual reality technology is experiencing a tremendous growth as it allows the users to interact within a simulated environment based on fiction or reality.

Essentially being used in gaming industry and also used in defense to plan strategies, virtual reality is now moving ahead and will soon be used for educational purposes, space communities, for advanced communication and also for resolving post traumatic stress disorder.

Computer technology on steroid is considered to be the next generation virtual reality urban environment which is in the process of development. Still in the nascent state of development there is a number of doubts in the minds of its creators as to which religion and what values should be used to create this virtual world which will accepted by maximum number of people.

Besides there is also some questions in the minds of the people as to where this test project should be located. The first attempt at computer technology on steroids was made by Space Biosphere Ventures in 3.15 acres of closed ecological system that was called as Biosphere II.

The system located at Arizona became the center of controversy because of the huge psychological conflict observed between the groups of people staying at biosphere II.

Also scientist noticed lack of oxygen and deficiency of nutrients in the diet. Still this experiment has surely opened new gates to the field of Urban Virtual Reality Environment.

Surveillance in French means “to watch over” and is now being used extensively to track the behavior of people involved in surreptitious activities.

Advanced electronic equipments like CCTV are usually used for surveillance, besides intercepting digital transmitted information for monitoring purposes.

Presently surveillance technology is being used for numerous applications in various fields. A complete analysis has been done below.

Surveillance technology is being used by companies for monitoring data and traffic over internet. Now various states are developing advanced data mining programs to find more information about tax defaulters.

Tapping phone calls for nabbing criminals is being used extensively by FBI in US and they are spending close to 1.6 million dollars annually on telephone surveillance. Surveillance cameras have become a necessity at almost all places of entertainment and offices to avoid unauthorized access at work place.

Biometric surveillance using facial information, fingerprints and DNA is being used to track terrorists globally. RFID are fast replacing bar codes for monitoring cargo's and also employees at offices.

More sophisticated surveillance devices are being created that by just from getting DNA information will be able to furnish exact physical details of the person, like his height, weight and even how he walks.

Using radio waves surveillance equipments are being developed which can track person’s heart rate and can suggest the way he is feeling. So get ready to loose your privacy with the advancing surveillance technology.

VOIP (Voice over Internet Protocol) Phone technology has surely brought a huge reduction in the telephone bills of an average American. What can be more convenient than making long distance phone calls using internet connection and talking for well over an hour just by spending not even 1/10th of what your regular telephone call would cost.

The newly introduced Wifi VOIP phone technology takes your convenience a step forward. With its working similar to that of a WiFi internet modem this phone technology increases the portability by allowing the users to make calls from anyplace anywhere as if they are using their cordless phones.

Advantages of Wifi VOIP Phone Technology

With many cities adopting Wifi network wifi VOIP phone are soon going to replace the cellular and landline phone all across the globe because of the need of only a single device to connect from anywhere anytime.

Also this is an extremely cost effective alternative as the user has to pay only wifi internet cost and making calls will be virtually free.

Disadvantages of Wifi VOIP Phone Technology

As Wifi VOIP will be totally dependent upon internet services for operation, reliable and good network connectivity is essential for these phones to work efficiently.

Also emergency call tracing may become tough using Wifi VOIP phone technology.