Virtualization for Fast-Growing IT Requirements

The actual need for virtualization basically requires the prior understanding of three things: Why Virtualize? What is Virtualization? And When to Virtualize?

The virtualization technology evolution dates back to the times of main frame computers, where the operators had to utilise huge power resource to run processes. Operating Virtualization addressed this issue by allowing the hardware resource to run multiple operation system images using a single software tool, thus managing the power utilisation in running processes.

Server virtualization is the key aspect of virtualization technology, where the main server is virtualised to create a guest system that exactly works as a main system. A software layer called hypervisor makes this happen by emulating underlying hardware. Here the guest operating system uses the software emulation of the underlying hardware, i.e., virtualized hardware and not the true hardware.

The performance of the virtual system is not exactly the same as that of the true system. Even then the virtualization holds significance as the most applications and guest systems may not demand for full utilization of the underlying hardware.

Thus, the dependence on hardware is alleviated, allowing greater flexibility and isolation of the processes from the main system, whenever needed. Here is where the companies working on multiple applications on multiple platforms can have an advantage of minimization of extra resource utilization.

Virtualization, which was initially confined to server systems, has evolved over the years to suit for networks, desktops, data and applications, among others.

Wings of Virtualization:

Virtualization has spread its wings across six key areas of significance in the IT industry:

Network Virtualization: This reduced the complexity across networks by grouping the available resources in a network, connecting them with independent channels formed as a result of the splitting of available bandwidths. These channels can be linked to devices later, depending on the requirement.
Storage Virtualization: Here, various storage devices are grouped into a single large virtualized storage unit, which is controlled from a central console.
Server Virtualization: This involves the masking of servers so as to limit the server users from accessing server's complex information, such as physical address, among others, while also ensuring the resource sharing. The software that is used to virtualize the underlying hardware is 'hypervisor'
Data Virtualization: Here the broader data access is provided to meet the business requirements, while abstracting the very important basic information like storage location, performance, and format.
Desktop Virtualization: Here the main intention is to share the workstation. Instead of server, the workstation load is shared via virtualization, in the name of remote desktop access. As the workstation works in data centre server environment, security and portability are also ensured.
Application Virtualization: Here the application is abstracted from the operating system, and encapsulated. The encapsulated form of the application is used across platforms without having need fo depend on the operating system every time during implementation.
Overall, fast-growing IT and end-user requirements driven by rise in demand for automation gives a needed boost to the global IT virtualization market.

Advantages of Master Clock Systems

A master clock is a hardware device that obtains accurate time from a hardware reference and synchronizes slave clocks and time displays. The slave clocks rely on the master clock to display the correct time.

Once set, traditional, unsynchronized clocks drift away from the correct time at differing rates. After a relatively short amount of time, they can all display very different times. Correcting individual clocks can be a very time-consuming process which needs to be carried out at regular intervals.

GPS Master Clocks

Master clocks can use hardware time references, such as the GPS system to obtain very precise time. GPS is accurate to one-second in three hundred million years. Therefore, all time displays and slave clocks can refer to a highly accurate, legally traceable source of time. GPS systems require an antenna that is typically located with a clear view of the sky. Alternatively, where antenna installation is difficult, public internet Network Time Protocol (NTP) servers can be used.

Everyone Works To The Same Time

Many organizations can benefit from synchronized clocks. Staff all work to the same time, therefore meetings can start promptly, classes in schools start and finish as scheduled and shifts start and end consistently. Hospitals, manufacturing and pharmaceutical industries can accurately log events.

Low Maintenance

Once installed and correctly configured, slave clocks are virtually maintenance free in contrast to high-maintenance stand-alone clocks.

Automatic Adjustment

In many countries, clocks need to be adjusted twice a year to correct for daylight saving time. If a large number of clocks need correcting, it can be very time-consuming. Often clocks are located at height or in inaccessible positions that makes the task even more time-consuming. Additionally, adjustment often takes place well after the event, clocks will therefore be incorrect for an extended period.

Master clocks adjust for daylight saving time automatically, requiring no manual user intervention. Additionally, all clocks adjust at the correct moment so that a continuously accurate time is displayed.

An added advantage is that slave clocks can often be configured to display time in different time-zones, ideal for trading floors and meeting rooms.

Automatic Recovery

Power outages or failures can cause unsynchronized clocks to become inaccurate. Each clock must then be corrected individually. Master clock systems automatically obtain accurate time from hardware references such as GPS. Within minutes of the power being restored, slave clocks will be back up and running. Often no operator intervention is required.

The Effects of Computer Technology on Our Everyday Lives

These days, the computer technology industry is rapidly growing and changing. Along with that growth and change of computer technology are the people who almost instantly adapt to the changes.

Computer technology has made our lives a lot easier and convenient. For instance our banking needs. Years ago, people had to manually file the important data of their customers; now they just use the computer to find these data. In just one click, they would instantly find the name of the customer, the birth date, the address, e-mail address, phone numbers and etcetera. As for the clients of these banks, they can also easily get a quick look at their account balances through logging in to the bank website; in addition to that a lot of people are able to apply for a loan with the use of the computer.

Because of the birth of computer technology, we now have credit cards or what others call plastic money, which are very useful especially when we do not have cash on hand or when you are ordering a certain product through the internet. It's amazing how computer technology has changed so much our way of living. Nowadays, purchasing products such as cellular phones, bags, household utensils, and clothes or even paying the bills can be effortlessly done at the comfort of your own home.

With the use of the computer a lot of students especially those with unfortunate disabilities or severe illnesses are able to enroll to different schools through home schooling. Students are even able to take their examination tests or check out their grades by the use of the computer.

As far I know computer technology has helped a lot of businesses to better serve the community. But the computers have not only helped us in the business industry; it also has an effect on our communication systems. Long before the computers were born, writing letters were the main source of communication, which would be such a hassle most especially to those people who lived in far away places; plus telephones were quite expensive so people would pretty much prefer writing to their loved ones. And for that reason, people who are far away from civilization would really have a hard time communicating with others. Now, we have e-mails, and live chat, or even voicemails. We now already have video calling in which we would be able to see the person that we are talking to. This would be really great for people who have loved ones that are away from home. Getting in touch with one another is now a piece of cake.

Computer technology has changed our lives for the better. Without it, we would still be living in the pre historic times.

The Benefits of Using Computers

Computers have become an important part in homes, businesses and the society. There are many people who use computers in their daily lives either for gaming, programming, for prepress equipment, learning new applications or for CTP work. Computers can either be purchased as desktop units or as laptops which makes it quite convenient to use. Laptop computers even enable people to use it whether they are lying on the bed, waiting for a train at the train station or sitting in a restaurant. With the different kinds of computers available, there are also many different brands to choose from. No matter which type or brand of computer an individual uses, computers have become really important in the lives of people and is a great tool in helping people to broaden their knowledge on a wide range of subjects such as information technology, computer studies, word processing, internet and so on.

Computers are simply wonderful machines and everyone depends on it in one way or the other. The applications and programs that these machines offer are benefiting the society either directly or indirectly. The benefits include creating information technology employments, opening communication methods, safety features for automobiles, using for diagnosing patients, predicting weather patterns and calculating data sets. Many small to large businesses nowadays are using computers as a way of storing information and managing their daily activities.

As new applications are being discovered frequently, more employment is created. Apart from businesses, most of the homes have computers and as problems arise with the machines, more and more professionals are needed to deal with the issues. In this world, computers have also become an important part in the lives of children. Nowadays, children are more interested in exploring the benefits computers offer and are eager to learn new technology. In the near future, due to their growing interest in computers, there will not be shortages in information technology labor force in the society.

Computers, games and technology have major influence and are enlightening the lives of children these days. These children will be able to perform well in areas of social learning, academic learning and development. Children of even three years of age love to play computer games, activities and can perform simple typing commands. Computers offer a lot to kids in terms of learning spellings and correcting their mistakes. With the support of parents and teachers, kids are able to improve their skills and learn more about technology.

Many kids love to play games on computer which improves their speed and alertness. Games such as soccer teach them rules of the games while games such as virtual villagers enable them to stay attentive and take the appropriate action in maintaining the health and well being of the tribe. Moreover, many kids and adults use computers and internet for social networking, searching for information on the web and for many other purposes. It all helps them to develop good communication skills, computer skills and makes them learn new things almost everyday. Individuals and the society greatly depend on computers and in the near future these machines will be the work horses.

Similarities Between the Computer and the Brain

Have you ever realized that the brain and a computer have nearly similar functions? For example, if you download something to your computer, it is just the same as the brain downloading new information during lessons in class. The same thing goes with uploading a file or an image from the computer to the internet; your brain does the same thing by uploading something you learned in class and projecting it onto a piece of paper. For example, your brain downloads an image when you see something, and then uploads it by you drawing a picture of something you have seen. Of course even the world's most powerful supercomputer cannot rival a human brain, but these are some examples of the similarities between man and machine that can be identified. Probably in the future, where humans have developed some high technology will they be able to create near-human computers.

Here are some other similarities between the computer and the brain:

Functions and Purpose

Both are used for storage of information, to process information and to run tasks.

Functions: Both are used for mathematical calculations, carrying out complex algorithms and to storing of crucial information.

Role in society

Both play extremely important roles in society, commerce, entertainment and science

Every single living creature survives by quick thinking and reflexes, that includes us. The computer today plays the most important roles from specialized systems controlling entire production factories to little "fuzzy logic" chips in washing machines that intelligently monitor the washing process.

Combining components

Both work by combining the processes of several components and parts to perform their tasks.

A computer consists of many parts, including a motherboard (which is also made of several components), the disk drives, the processor, graphic cards and many more... all of which has its own roles in the computer's processes.

Like a computer, the brain is formed out of parts. Besides having the left and right brain, there are also parts of the brain that take care of emotions, mathematical calculations, body co-ordinations and many other tasks needed for our daily activities.

Electrical signals

Both work by transmitting "logic signals" to each of their parts. Signals are both electrical

i.e. A computer works by using binary ("on"/"off" logical signals known as "bits", put together as "bytes" to represent data.) To communicate internally between components, represent information and store data.

In a way, neurons in the brain are either "on" or "off" by either firing an action potential or not firing an action potential.

Memory capacity

Both can increase their memory storage capacity.

Computer memory grows by adding computer chips/external hard drives/ pre-installed hard drives. Memories in the brain grow by stronger synaptic connections.

Self-maintenance

Both computers and brain have repair and "backup" systems.

The brain has "built-in back up systems" in some cases. If one pathway in the brain is damaged, there is often another pathway that will take over this function of the damaged pathway.Similar to a computer, where backup files can be stored in the computer.

Degrading with time

Both can degrade. Computers break down and brain cells deteriorate

Like all machines, computers break down with time. Brain cells deteriorate with age, losing their functions and slowing down because of lower counts of chemicals and hormones in the body.

Types of Computers in the Market

Types of computers

There are a number of computer options to select from in today's computer and technology market. Today, computers come in different sizes and styles. Current computers are made in a way that they fit people with different needs and requirements. Apart from the initial desktop and laptop computers there are other types of computers available on the market. Netbook and tablet PCs computers are now available, and a number of people are using them for different purposes.

Netbook PCs

Netbook PCs are similar to small laptops and are primarily meant for travel. They are smaller and lighter when compared to the standard laptops. Netbook computers do not have in-built DVD or CD drives, and their storage space is less. Netbook PCs requires less computing power and are relatively cheap. Netbook PCs perform basic computing activities e.g. word processing and Internet surfing.

Laptops

Coming to the laptop computers, they are solely meant for placing on the lap of a person. What distinguish a laptop from a desktop is the size, structure and mobility. Although laptops are mobile devices, they are not meant for travel. However, laptops are more convenient than desktop PCs.

Tablet PC and convertible laptops

A tablet is a compact single-screen device. Instead of using the traditional keyboard in desktop and laptop PCs tablets use a stylus or finger touch. General uses of tablet PCs are media playing, sending email, reading among other uses. Tablets come in two design namely convertible tablets and slate tablets. On the other hand, a convertible laptop is similar to a tablet PC. The keyboard of the convertible laptop can be folded to form a touch screen tablet. It allows on to use a stylus or touchscreen.

Desktop PCs Vs laptops

A desktop computer primarily stays in one position. The size and components of a desktop computer do not allow for easy moving. However, the system of a desktop PC is stronger and more powerful than that of a laptop. Laptops are mobile and more convenient than desktop PCs but upgrading laptop hardware is nearly impossible.

Laptops Vs tablet PCs

The primary advantage of a tablet over a laptop is the weight. Tablets are light, and you can use them while walking unlike laptops which require you to sit down while working on them. Tablets are useful when one is in a conference since they can be laid down. In today's computer market there are laptop tablet PCs which are basic tablets but have a keyboard and mouse attached to them. You can use them vertically as a traditional style laptop or use them as a tablet.

A Short Article on Technology

The world has undergone enormous changes over the past decade. We now live in a world where communication is paramount. It seems that everyone and everything is connected in some way.

For school students this has made things much more efficient. Research papers that used to involve hours of laborious effort, can now be researched and documented without ever touching a card catalog or a periodical index. Worlds of information are now available at the click of a mouse.

Questions that people pondered without any answer previously can now simply be typed into any convenient search engine and answered almost immediately. There are countless sites filled with informative short articles all over the Internet. Videos and music can now be seen on demand and news from across the world can be delivered in an instant.

There are some people who worry that the technological revolution and evolution we are experiencing today is moving too fast. There seems to be a loss of privacy in some respects and the specter of a Big Brother society looms larger than it has since 1984. Whether their fears are well founded or not will remain to be seen, but it is unlikely that people will ever willingly give up the almost instant connections to our wired world.

Flying in the face of these fears are individuals who share their worlds through their blogs. What used to be shared with only close friends is now put online for millions of people to see if they should happen upon the blogger's website. Individuals are learning to take advantage of this by using their well placed blogs to sell products and services. The internet has allowed individuals an opportunity to step on to the same playing field as the big boys of business. With the right information and the ability to get it seen, anyone can now reach the masses and share their thoughts, feelings and even sales pitches.

Businesses as well as individuals have come to rely on the Internet as a source of advertising and actual sales. Entire business models have been constructed and thriving based solely on using Internet websites. It is rare today to find a traditional brick and mortar establishment that does not have some type of online presence. Any business that does not adapt and grow to keep up with the newest technology seriously risks being left behind in the wake of their competitors who choose to ride technology's leading edge.

Time will tell where this all will lead. We should make the most of the positive possibilities technology promises, but we should also keep a careful watch on where we are going.