Monday, 25 February 2013

WiMAX Technology

WiMAX Technology


Wimax stands for Worldwide Interoperability for Microwave Access. Wimax technology is a telecommunications technology that offers data transmission speed around 72 Mega Bits per second without any need for the cable infrastructure. Wimax technology is based on Standard that is IEEE 802.16, it usually also called as Broadband Wireless Access. Wimax technology is actually based on the standards that making the possibility to delivery last mile broadband access as a substitute to conventional cable and DSL lines. 
Wimax (802.16) is the next stage to a broadband as well as a wireless world, extending broadband wireless access to new locations and over longer distances. The media describing WiMAX multipoint coverage extending 30 miles But the average cell ranges for most WiMAX networks is 4-5 miles.


HOW WiMAX TECHNOLOGY WORKS

In practical terms, WiMAX would operate similar to WiFi but at higher speeds, over greater distances and for a greater number of users. WiMAX could potentially erase the suburban and rural blackout areas that currently have no broadband Internet access because phone and cable companies have not yet run the necessary wires to those remote locations.


A WiMAX system consists of two parts:

•    A WiMAX tower, similar in concept to a cell-phone tower - A single WiMAX tower can provide coverage to a very large area -- as big as 3,000 square miles (~8,000 square km).

•    A WiMAX receiver - The receiver and antenna could be a small box or PCMCIA card, or they could be built into a laptop the way WiFi access is today.

A WiMAX tower station can connect directly to the Internet using a high-bandwidth, wired connection (for example, a T3 line). It can also connect to another WiMAX tower using a line-of-sight, microwave link. This connection to a second tower (often referred to as a backhaul), along with the ability of a single tower to cover up to 3,000 square miles.



Tuesday, 29 January 2013

CLOUD TECHNOLOGY (Part 2)



CLOUD TECHNOLOGY (Part 2)


Each server provides the same applications as the other, and each server has the same (duplicate) files as the other.

If something happens to one server, or operating system, then our access is automatically migrated (transferred) to another server in the network, which has a duplicate copy of our files and applications.

In this way, we always retain access to our files and applications by simply logging into our account. 


Many of the accounts you access are operated with cloud technology. For example, your email.

If your email service experiences a power failure or some other failure, it won't shut down but instead transfers your access to another server which is an exact copy of everything you need and use.

This redirection to duplicate servers is also used to provide faster service. Cloud technology makes computing resources scalable and abundant.

It allows for faster, more secure, reliable, efficient usage - and is an alternative to purchasing and upgrading hardware, systems and applications.

If a server is too busy (slow) or another server is closer to your location - then your access will be transferred to that server using cloud technology.

With this technology you can also install another operating system on your current operating system. It opens up like an application. For example, a Mac user could have a windows operating system to use Office Suite or PhotoShop on their computer.

This technology is a rapidly evolving concept. It presupposes the future of computing as simple display devices with internet access to clouds. It offers a faster, more secure, reliable, efficient usage - and is fast becoming an alternative to purchasing and upgrading hardware, systems and applications.


  Analysts predict that by 2014 the latest technology inventions related to cloud computing will significantly influence how we use our computers.
Cloud computing is where tasks and file storage on your computer are performed and stored elsewhere.

By using an internet connection you can connect to a service that has the architecture, infrastructure and software to manage any task or storage requirement at less cost.

The advantages of cloud computing is that it eliminates the difficulty and expense of maintaining, upgrading and scaling your own computer hardware and software while increasing efficiency, speed and resources.





Monday, 28 January 2013

CLOUD TECHNOLOGY



CLOUD TECHNOLOGY (Part 1)



Cloud technology allows us to access and use other computers over the internet.
Cloud Technology lets us use applications on operating systems on other computers.
We access these computers (servers) using the internet. We log in to a website and use the applications.They open-up on our display even though they're on another computer.
We can create, save and store files (Cloud Storage) on these other computers just as if we were saving the files on our own computer. 


 This technology is designed to resolve some of the problems users experience with computers.
When hardware, operating systems and applications are configured together, and something unexpected happens to one component - it can negatively effect other components.
For example, if your operating system is infected by a virus, or there is a memory failure, or if a part breaks, it has the same effects - you can't effectively use your computer.
However, if your operating system, applications and computer are separated from each other - then they're not dependent on each other.
This is what cloud technology does - it separates the components.

It allows us access to servers (hardware) and operating systems that are redundant.
In other words, clouds are organized into a cluster of multiple servers and operating systems connected together as a network. 

Sunday, 27 January 2013

Mozilla Reveals First Two Firefox OS Phones



Mozilla Reveals First Two Firefox OS Phones


 


Firefox OS, two preview smartphones will be available in February 2013. Today, Mozilla introduced the Keon and Peak. Both phones will run Firefox’s HTML 5-based operating system. 



The 3.5-inch HVGA display on the Keon is powered by a 1-GHz Qualcomm Snapdragon S1 processor, 4GB of ROM and a 1580 mAh battery. The device will run on HSPA or Edge networks. It also includes a 3-MP camera, microSD, 802.11n Wi-Fi connectivity, GPS and a microUSB charging port. Plus, it comes in a strikingly orange Firefox exterior.




The more upscale Peak, despite its unfortunate name, comes equipped with a 1.2-GHz Qualcomm Snapdragon S4 CPU, 4GB of ROM and an 1800 mAh battery. It too only runs on HSPA or Edge, but does sport a nicer 4.3-inch qHD IPS display and features a 8-MP rear-facing camera plus a 2-MP front-facing camera