Our Opinions and Tips » Technology

Understanding WAN Optimization

Ian Flintoff — Fri, 11 Feb 2011 11:20:09 +0000

Wide area network is a type of computer network which covers a broad area. It is used to connect all the types of networks, so that people and computers in one area can communicate with the computers in other area. Each organization requires a private WAN, tailored according to the needs of the organization.

WAN optimization products, help in accelerating a broad range of applications accessed by distributed enterprise users by eliminating redundant transmissions, staging data in local caches, compressing and prioritizing data, and streamlining chatty protocols. WAN optimization also avoids packet delivery issues which are very common in WAN environments. WAN optimization helps in interconnecting the branch offices, vendors, partners and mobile workers. Generally an organization uses WAN optimization to cut down the costs and for reducing the network traffic.

Application performance management (APM), is the system which monitors and manages the performance and service of the software applications. There are two ways in which the application performance is measured. First is the resource used and the second is response time. Application performance management is related to the measuring of end user experience, which is the major criterion for measuring the performance of an application in the production.

Generally in WAN optimization Application Performance Management is used to measure the increase in the performance level and decrease in the reaction time.

WAN Optimization Accelerates Application Performance

Ian Flintoff — Wed, 17 Nov 2010 11:37:03 +0000

Faster application performance ensures that a business effectively renders quality services to its employees and customers. WAN optimization is essential to businesses that are using network applications at its headquarters to stay in touch with branches at remote locations through WAN. WAN optimization enhances the application performance by techniques like bandwidth management, caching, compression, and Protocol optimization and significantly accelerates application performance.

Benefits:
Improves Productivity
Slow speed of application performance really hampers the employee productivity and customer satisfaction. Use of WAN optimization techniques accelerates the applications over the WAN, speeds up the data transfer and reduces the end-user application response time. This in turn makes transactions faster thereby leveraging the employee productivity. WAN optimization reduces the time taken to complete repetitive operations and helps in increasing employee productivity.

The employees waiting for long time to get a transaction done or download a file can not give prompt service to the customers and it results in unsatisfactory customer experience. By eliminating the network problems and reduced throughput, the remote employees can access the network applications that are installed on other locations at a faster rate. Accelerating the applications over the WAN also helps the mobile workers making it easy for them to cater their services to consumers.

Reduces Bandwidth Cost
Using WAN optimization techniques like bandwidth management/QoS, caching, compression, and Protocol optimization can significantly reduce the usage of bandwidth which in turn pulls down the network costs.

In Bandwidth Management, limits are set on network applications as to how much bandwidth they can use. This ensures maximum utilization of existing bandwidth by critical applications without providing additional bandwidth, saving considerable amount of money.
In Caching, the copies of important files are stored in multiple locations. The users need not have to download these large files every time thereby reducing the bandwidth utilization.
Protocol optimization decreases the transmission delays thereby increasing overall speed of transmission and transaction response.
Compression techniques help to reduce size of the data thus saving time of transmission. Compression helps to send data in a faster way thus increasing reducing load on communication links.
Compression and caching together help keep the communications link uncongested and reduces queuing delays.

All these factors reduce bandwidth usage which in turn reduces cost. WAN optimization allows users to access WAN applications at speeds similar to a LAN.

WAN optimization accelerates application performance by eliminating issues like redundant file transmissions, chatty protocols, network latency, packet loss etc. WAN optimization ensures consolidation of IT infrastructure of the business at remote locations thereby ensuring higher productivity at remote offices. Using WAN optimization, the businesses can reduce remote office infrastructure cost by effectively centralizing applications, data storage, and server at data centers.

WAN optimization techniques increases transaction speed, improves productivity, and reduces bandwidth cost enabling businesses to be competitive and focus on newer markets. WAN optimization implementation helps businesses to get excellent ROI on their investments by reducing bandwidth costs and improving overall productivity.

Source: Apsera Tech, Inc

Related Links:
wan optimization

Uses of School Management Software

Marcel Duchamp — Tue, 05 Oct 2010 13:09:27 +0000

Each and every field needs the technology for the development and for the growth. As a part of enhancements in the technology, various types of software are provided by the technology for various fields.

If we take the educational software, school management software is one of the important software. In the schools the computers have a wide variety of applications. Coming to the school management software, this is used by parents, teachers as well as the students.

For the students, the software is used to access the needed books from the online library. It provides information about the schedules of the examinations. For the parents, it is used to check the performance of the kid as well checking out the attendance.

Just a single sign up of the account in the software will lead the parents to access the child’s performance. It also gives the information regarding the child’s extra-curricular activities. Effective communication with the teachers can be maintained using this software. Day to Day track sheet regarding the activities, lessons and tutorials will be mentioned in the software.

Along with the parents, this software is also used for the teachers. This software enhances the way of teaching lessons, to teach lessons according to the schedules. It also helps in creating reports for the meetings of parents and teachers. Communication between the teachers and the parents will increase which helps in tracking students performance regularly.

Apart from benefits to the teachers, students and the parents, this software is also helpful for the administration. Paper work decreases and manual errors get reduced.

Thus, school management software is used for making the student increase their performance.

Related Links:
Claims management software

Benefits of Using Microsoft Exchange Server

Ian Flintoff — Thu, 29 Jul 2010 10:42:15 +0000

To make e-mailing faster and more efficient, Microsoft has designed this software product called Microsoft exchange server. Most of the companies are using this server for e-mailing purpose.

The main benefit of using this Microsoft exchange server is that it improves the security features which are included in the package. For eliminating the different threats like viruses, spams, hackers etc., this software package plays an excellent role in maintaining its security features. Email will be remained confidential by using this software. By using this software package in any company, the company feels confident about the protected e-mail system and it even allows the employees to utilize the e-mail system at its full potential.

Apart from providing the security, the company even allows the remote access of the e-mail i.e. the e-mails can be accessed from any part of the world. Employees can respond to the company’s needs and can access all the documents from anywhere. The main reason behind making the e-mail and the contact management simple is the email platform that is Microsoft Office Outlook. It is used by the Microsoft Exchange Server for making trouble free e-mail messaging. By using this Microsoft Office Outlook, the features which are included are the calender features, Scheduling features, voice mail storage, and contact management programs.

Monitoring facility has also increased by the usage this server. By using the monitoring facility, the issues can be detected before the losses have occurred. Access to the address books, access to e-mail accounts from any configured computer and the file sharing can be done more efficiently.

Related Links:
Umbrella Company
ad server
apm consulting

Know The Difference Between LCD, Plasma, HDTV, LED, and OLED

Henry Blodget — Wed, 13 Jan 2010 14:02:09 +0000

There are many technologies emerging in display devices like TVs. Every technology excels in particular feature of display and has particular method of display. Different technologies used in TVs are:

LCD TV:

LCD (Liquid Crystal Display) televisions are thinner and lighter and provide much sharper and clearer picture than CRTs of similar size. They are ideally used for cell phone displays, computer monitors and to view still images.

LCD TVs have a flat screen so there will be no picture distortion and don’t have screen “burn in” like curved tube TVs.
In general, LCD viewing angle is 175 degrees. The picture can be viewed 87 degrees from each side.
LCD TVs are very economical to use and screens less than 35 are fairly inexpensive.
LCD TVs are backlit and blocks outside light. So, they are suitable for natural lighting situations.
Most LCD TVs have a half life (50% of original brightness) span of over 30,000 hours (16 years of viewing at 6 hours per day).
LCD sizes generally range from 13 to 65 but some manufacturer will offer up to 100 sizes.

Plasma TV:

A Plasma Display Panel (PDP) is a flat panel display used in large TV displays. They have better and accurate color generation than LCDs, and with far display, wider viewing angles, and do not experience degradation at high angles compared to LCD. Plasma displays are ideal for viewing motion video in large displays.

Plasma screen sizes generally ranges from 32 to 84 but some offer screen sizes up to 100.
Plasma pixel, technology provides a brighter picture with more contrast between the blacks and whites than standard TV.
In general, plasma TVs viewing angle is 160 to 180 degrees and picture can be viewed from any angle.
On an average Plasma TVs have a half life (50% of brightness) of 50,000 to 70,000 hours (20 years of viewing 6 hours a day to 50,000 hours).
Some plasma TVs are provided with upgradeable video cards that which helps to match with future technology.

HDTV:

HDTV or High-Definition Television is a digital television broadcasting system offering a higher resolution compared to regular television systems. HDTV is digitally broadcast unlike earlier analog broadcasting, because digital television (DTV) signals require reduced bandwidth because of digital video compression.

HDTV will not have standard TV problems, like low quality sharpness, troubles with brightness or contrast, spots, other visual, or audio imperfections, problems like double images (ghosting), and weak signals. HD television provides clearer pictures with excellent sound quality, a wider viewing screen and up-to-date scanning. HDTV will provide more and superior channels provided by regular satellite or cable television with theater system experience.

LED TV:

LED (Light Emitting Diode) TV is an LCD TV that uses LEDs for back lighting, instead of using the fluorescent lights (as it creates more black spots). They are ideally used for low-energy indicators, as substitutes for traditional light sources in general lighting and automotive lighting.

LED TV will currently more than a standard LCD or plasma TV
LED TV has got great looks and very easy to Install.
Edge-lit LED television will consume 30-40% of less power than LCD or plasma TV. But backlit LEDs will consume more power.
Brighter picture can be viewed with LED television compared to a standard LCD TV
LED TV that is backlit, with local dimming and RGB LEDs, will have an enhanced picture and better contrast ratio and colour accuracy compared to standard LCD TV.
It has a long lasting life and also eco friendly

OLED TVs:

OLED (Organic Light Emitting Diode) TVs depend on light emitting polymer technology. Its features including,

In OLED TVs, there is no need for backlights or extra heaters or coolers, so there is less power consumption.
As OLED materials has the capacity to support full spectrum of visible light, so there will be higher contrast and it has high-speed refresh rates.
OLEDs are much faster than LCDs. Fast motion and quick eye movement pictures are more realistic.
It has larger viewing angle and for near-eye applications, it provides more pleasant viewing without distortion.
The OLED TVs will make virtual images to look realistic and can be viewed easily for longer periods.

Before purchasing a television, know the difference between each technology and purchase the one which has features you desire and comes in your budget.

Pros And Cons Between Analogue And Digital Electronics

Marcel Duchamp — Fri, 02 Oct 2009 07:20:02 +0000

Generally the information is encoded differently in analogue and digital electronics, the method they process a signal is consequently different. All operations that can be performed on an analogue signal such as amplification, filtering, limiting, and others, can also be duplicated in the digital domain. The first electronic devices invented and mass produced were analogue. The use of microelectronics has reduced the cost of digital techniques and now makes digital methods reasonable and cost-effective. There are all some main difference between analogue and digital electronics:

Noise: Because of the way information is encoded in analogue circuits, they are much more susceptible to noise than digital circuits, since a small change in the signal can represent a significant change in the information present in the signal and can reason the information present to be lost. Since digital signals take on one of only two different values, a noise would have to be about one-half the magnitude of the digital signal to cause an error; this property of digital circuits can be exploited to make signal processing noise-resistant. In digital electronics, for the reason that the information is quantized, as long as the signal stays inside a range of values, it represents the same information. Digital circuits use this principle to regenerate the signal at each logic gate, lessening or removing noise.

Precision: A number of factors influence how precise a signal is, mainly the noise present in the original signal and the noise added by processing. See signal-to-noise ratio. Fundamental physical limits such as the shot noise in components limits the resolution of analogue signals. In digital electronics additional accuracy is obtained by using additional digits to represent the signal; the practical limit in the number of digits is determined by the performance of the analogue to digital converters, since digital operations can usually be performed without loss of precision.

Design Difficulty: Digital systems are much easier and smaller to design than comparable analogue circuits. This is one of the major reasons why digital systems are more common than analog. An analogue circuit must be designed by hand, and the process is much less mechanical than for digital systems. Also, because the smaller the integrated circuit (chip) the cheaper it is, and digital systems are much smaller than analog, therefore a digital system is cheaper to produce than an analog.

Ie 8 Gets Hacked Inspite Of Microsoft’s Lauds

Marcel Duchamp — Tue, 24 Mar 2009 06:24:28 +0000

Microsoft is releasing Internet Explorer 8, Mozilla is into releasing Fennec and Google into New beta of Chrome browser. With all these big browsers with big brands entering into the market, a question arises how safe are they?

You know how hacking has become a serious problem. Amid of these it is not only viable to use the older browsers but also to use the newer ones’ without knowing their security levels.

When Microsoft was marketing its new Internet Explorer 8, the main features it lauded of were ActiveX lockdowns, Automatic crash recovery, InPrivate browsing and Filtering, XSS filter, Data Execution Detection, etc. The words are big, but did not work when they actually had to. It was hacked within few minutes, in 10^th annual CanSecWest Conference. So you know the new IE 8, with all its big security features, is still vulnerable. And the vulnerability is said to increase by adding new add-ons to the browser.

All about Nanotechnology

Ian Flintoff — Sun, 21 Dec 2008 08:50:16 +0000

Nanotechnology talks about widely to a field of science and the technology applied that subject of the unification is the control of the matter in the atomic and molecular scale, normally 1 to 100 nanometers, and to the manufacture of devices with the dimensions critics that lie with in that range of the size.

It is a highly multidisciplinary field, drawing of fields such as science of the applied physics, of material science, the interface and the colloid, physics of the device, the supramolecular chemistry (that refers the area of the chemistry that is centered in the non-covalent interactions of the molecule entailment), one same-folding the machines and robotics, chemical engineering, industrial engineering, biological engineering, and electrical engineering. Much speculation exists as far as what it can be from these lines of the investigation. Nanotechnology can be seen like extension of existing sciences in nanoscale, or like modification of existing sciences using newer, more modern term.

Two main approaches are used in nanotechnology. In the approach “bottom-up”, the materials and the devices are constructed of the molecular components that mount chemically by principles of the molecular recognition. In the approach “of above downwards”, the nano-objects are constructed of greater organizations without control of the atomic-level. The impetus for nanotechnology comes from an interest renewed in the science of the interface and the colloid, joined with a new generation of analytical tools such as atomic force microscope (AFM), and scanning tunneling microscope (STM). Combined with refined processes such as electron beam lithography and molecular beam epitaxy, these instruments allow the deliberate manipulation of nanostructures, and led to the observation of novel phenomena. The examples of nanotechnology in modern use are the manufacture of polymers based on the molecular structure, and the design of the dispositions of the shaving of computer based on superficial science Despite the great promise of numerous nanotechnologies such as quantum dots and nanotubes, real commercial applications have mostly used the advantages of colloidal nanoparticles in bulk form, such as suntan lotion, cosmetics, protective coatings, drug delivery, and stain resistant clothing.

Mechatronics at a Glimpse

Ian Flintoff — Sat, 01 Nov 2008 08:53:18 +0000

Mechatronics was invented by Mr. Tetsuro Mori, a senior engineer of the Japanese company Yaskawa, in 1969. Mechatronics is the mixture of mechanical engineering, electronic engineering and software engineering. The reason of this interdisciplinary engineering field is the study of automata from an engineering viewpoint and serves the purposes of controlling advanced hybrid systems. The word itself is a portmanteau of ‘Mechanics’ and ‘Electronics’. Mechatronics is centered on mechanics, electronics, control engineering, computing, molecular engineering which, shared make possible the generation of simpler, more inexpensive, reliable and versatile systems. Mechatronics may alternatively be referred to as electromechanical systems or less often as control and automation engineering.

Engineering cybernetics deals with the question of control engineering of mechatronic systems. It is used to control or regulate such a system. Through teamwork the mechatronic modules perform the production goals and inherit flexible and agile manufacturing properties in the production scheme. A modern production tool consists of mechatronic modules that are integrated according to control architecture. The most known architectures involve hierarchy, polyarchy, heterarchy and hybrid. The methods for achieving a technical result are described by control algorithms, which may or may not utilize formal methods in their design. Hybrid-systems important to Mechatronics include production systems, synergy drives, planetary exploration rovers, and automotive subsystems such as anti-lock braking systems, spin-assist and everyday equipment such as auto focus cameras, video, hard disks, CD-players, washing machines. A typical mechatronic engineering degree would involve classes in engineering mathematics, mechanics, machine component design, mechanical design, thermodynamics, circuits and systems, electronics and communications, control theory, programming, digital signal processing, power engineering, robotics and usually a final year thesis.

Airplanes to Use Papers in Manufacturing

Robert — Thu, 30 Oct 2008 09:06:43 +0000

Buckypaper is not as ordinary as it sounds. It is going to be used in manufacturing of things ranging from TV to an airplane. But it is not a fancy name of some metal. It is really a paper which is soon going to revolutionize the manufacturing industry.

It is all the nano technology that is going to make this paper possible to help build an airplane. This buckypaper is made of tiny carbon tubes which are around 50,000 times thinner than your hair. This material more rigid than steel and will be used in next generation electronics. The main advantage of this paper against steel is that it is lighter and when used in building an aircraft, it will shield electronic circuits and devices against electro magnetic interference, and most of all they are 500 times stronger than steel.

When you take just a gram of nano tubes and unfold them into sheets, you can cover as much as two-thirds of a foot ball ground. Such complex is nano tube.