Feb
27th

The Real ROI on a Web-Based System

How do we determine the real ROI on a web-based system? As a administrators know the challenge of determining a product’s true ROI, but without that data, we can’t justify purchases especially big, expensive systems. At Vero Beach High School, we developed a checklist of features that, when combined, should provide a clearer picture of a school’s investment.

Less is more 
A solution that addresses the needs of all grade levels and all core content areas provides a huge cost savings. The use of one system eliminates the need for different technology configurations, multiple licenses, multiple trainings, support contracts, etc (more…)

Feb
27th

Oracle’s end-to-end high availability solution

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A properly implemented end-to-end high availability solution enables you to reduce the possibility that the entire system becomes vulnerable due to a single point of failure. OracleAS is constructed on a grid to ensure high availability.

End-to-end high availability solution

The end-to-end high availability solution begins when the Web Cache or the Oracle HTTP Server (OHS) receives a request from the client. At the Web Cache tier, multiple Web Cache instances are clustered in order to share cached information, support the failover feature, and conduct load balancing to multiple middle tier Application Server instances. (more…)

Feb
25th

Introduction to high availability in OracleAS

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What is High availability concepts?
OracleAS 10g provides high availability on all Oracle application tiers by integrating redundancy into the Application Server network infrastructure. A correctly designed redundant network infrastructure eliminates all single points of failure that could bring down an entire system.

OracleAS

Availability refers to the amount of time in which an application is available for use according to defined company and network performance indicators. System availability is a flexible concept, and not all applications need to have the same level of availability because not all systems in a network are required to run at full capacity throughout an entire day. The decision of when to run a particular application at a particular level of availability depends on the network installation and the company’s business goals. (more…)

Feb
17th

History of wireless networks

Files under Networking, WIFI | 6 Comments

Wireless networks are communication that is done without the use of cables. Its use dates back several centuries. In the 1820′s, Hans Christian Oersted and Andre-Marie Ampere discovered electromagnetism, which is a manifestation of both the electric and magnetic fields. Then, in 1832, Joseph Henry and Samuel F.B. Morse had demonstrated how electrical telegraphy works, which is a telegraph that uses electrical signals that are relayed through telecommunication lines or radio.

wireless networks History

Telegraphs started to make their appearance in the 1940’s when networks were built in California and in the East Coast of the United States. This was shortly followed by the first transatlantic cable set up in 1858, the propagation of wireless technology by James Clerk Maxwell in 1864 and subsequently a radio-telegraph experiment conducted by Marconi and Popov. As you can see, the technology that we have today all has its basis in the inventions and creations of these scientists a decades ago. (more…)

Feb
1st

Intel Sandy Bridge Processor Review

Files under Hardware | 10 Comments

Intel has finally released the much-awaited Intel Sandy Bridge processor this month. Having been the talk of town for almost a year, the Intel Sandy Bridge processor certainly lives up to its name. According to many Sandy bridge processor reviews, written by both professional bodies and home users, the Intel Sandy Bridge processor is what Intel claims it to be and even more.

Intel Sandy Bridge

The Intel Sandy Bridge processor is still based on the 32nm manufacturing process released 12 months ago that was already considered very advanced during its release. Now, the Intel Sandy Bridge processor offers a higher performance enhancement, more vital features and a higher level of architectural design. (more…)