Technology Toolkit

There are more chances to get close to virus and Trojans as your computer is connected to the Internet. And if it is, you know how fun and useful the Internet can be. But its also a popular place for unfriendly users who might want to spread viruses or gain access to your computer. XP service pack (SP3) contains features that make your computer more resistant to threats from the Internet.

There is an advanced option called security center which manages all of security and protection handling of whole system. You can use the security center to check your security settings and learn more about protecting your internet connection, automatic updates, e mail, and windows firewall.

Also, firewall provides added advantage to security mechanism that filters all incoming and outgoing connections through its filter algorithm. This can prevent unwanted worms and other viral activities from coming into system.

Whenever firewall is on by default, it helps protect your computer against viruses and other security threats, such as intruders accessing your computer through the Internet. A firewall helps to protect your computer from potential damage from viruses or unknown intruders.

In XP, Firewall is turned on by default. You may also choose to download and install a firewall of your own choosing. However, some computer manufacturers and network administrators might turn it off.

If someone tries to access your computer without your knowledge or consent, firewall blocks that access. If someone on the Internet whom you do not know asks your computer for permission to connect to it, Windows Firewall intercepts the request and notifies you.

Moreover, pop up blocker helps to retain integrity of your computer security, by blocking popup window which are potentially harmful one. You could have software on your computer that is launching pop ups.

To stop these pop ups you will have to identify the software and remove it or change its settings to stop launching pop ups. Some pop ups are created in a way that gets around the pop up blocker.

In addition enhanced security settings in outlook express will help you identify and delete potentially harmful e mail attachments, which can contain viruses. You can use certificates to protect your personally identifiable information on the Internet, and to protect your computer from unsafe software.

However, It is recommended that using anti virus software, handling e mail messages with great care (especially when they contain attachments), and carefully choosing the Web sites you visit. The features listed above work together to make your computing experience more secure and enjoyable.

Mobile computing is an attractive development for today’s demanding work force, but very few are unleashing the true potential of this new technology.

This technology is more than just Microsoft office applications on the move, it gives the user whether in the office or not the advantage in being able to have centrally located and accessible information through a wireless connection or private network, and that’s a real bonus.

With the possibility of having this information on the move managers and teams can maximise their time and efficiency. This technology helps by eliminating the need for duplication of files. Software can also be used in this way using this style of viop(voice over internet protocol) mobile technology, the wireless network means that greater connectivity can be achieved between the static office and their colleagues out in the field meeting clients.

The static office can become less rigid and fluid, as viop mobile technology can connect those at home, travelling and in the office on one central network where everyone is connected. Businessmen in the field have found that connecting to skype through their computer and a headset has slashed their mobile phone bills and they experience easy access through the widespread roll-out of wifi connections in hotels, cafes and airports.

As workers struggle with their work/life balance, advances in communications technology are helping workers to have the opportunity to make their home office just as productive and connected as their desk in their office,letting them communicate directly with office colleagues through such means as video conferencing, email, instant messaging and greater networking technology.

Although this advantage of getting more time at home away from the office is good, the technology that allows this also increases how contactable you become if you want a sneaky five more minutes in bed.

The use of voip technology in the work place could also help reduce a company’s carbon footprint, with around 460 million commuter journeys taking place to UK offices, this figure could be cut dramatically by taking advantage of communications technologies enabling staff to work from home. It also becomes an attractive idea to new parents, disabled staff and older workers who find commuting difficult.

This article shows how voip technology and advances in telecommunications are helping business to function more efficiently and for staff on the move to be able to access internal information before and during meeting away from the office. Business costs and environmental impact can also be reduced as an effect of this technology.

Employee happiness can be improved by greater flexibility to make their home office totally connected to their normal office, having the ability to receive business calls at home form clients and colleagues, and access company files from home. It’s an exciting time for the telecommunications industry and many advances are being made to improve things further.

The computer can be a very useful device especially when used properly. It is used to connect to the Internet to conduct research, communicate with other people, pay bills and more. So having a slow computer can become a real problem especially when you are using the computer 24/7. So when this happens you need to find ways on how to speed up PC completely free. But before that you should know first the reasons why the computer slows down.

1. It can be infected with a virus. By browsing malicious websites adware or spyware can be installed in the computer with out you knowing about it.
2. The computer is full of unnecessary files. When browsing websites, cookies can be stored in the computer and when it is accumulated it can take up a lot of hard disk space.
3. Corrupt or malfunctioning applications. There are programs that have executable files running in the background and cannot be closed. This can result to a very high CPU usage.

Since these problems are very common today, there are different ways on how to speed up PC completely free. The tools used are free and some are already bundled with Windows operating system.

Here are the different ways on how to speed up PC completely free:

1. Clean up disk space. Cleaning up disk space will help the computer operate faster. The Disk Cleanup tools will check for files that can be safely deleted. Usually, it checks the temporary files folder; recycle bin, cache and the like. Then after checking the necessary locations it will present you with an option if you want to delete the selected item or not. The Disk Cleanup tool can be found in Windows operating systems under Programs-Accessories-System Tools. The tool performs the following:

- Delete temporary Internet files;
- Delete downloaded program files;
- Clean up recycle bin;
- Delete Windows temporary folder;
- Delete Windows components that are not necessary.
- Delete programs that are rarely used.

2. Disk Defragmenter. This is another tool that will help speed up PC completely free. Again, this tool in available in Windows operating system. Though, this method takes much longer. What is does is that it looks for a file in the hard disk and if it is open then it will put it together. This tool basically makes sure that each file and folder holds only a single hard disk space. So that the hard disk space will not have chunks or sectors that are not occupied.

3. Monitor and repair error in the disk. To be able to do this you need to run the Error Checking tool. This is needed because as you use the computer, bad sectors can occur. When there are several of these then saving files can be difficult. So if the tool is executed, it will search for these errors then check if the files are misplaced. After checking it will try and repair the errors.

There are a lot of reliable registry cleaner programs that will effectively clean out the registry from unnecessary files. This has been proven to improve the performance of the computer. These tools are easy to use because there are simple guides that will help you effectively speed up PC completely free.

UNIX operating systems are widely used in both servers and workstations. The Unix environment and the client server program model were essential elements in the development of the Internet and the reshaping of computing as centered in networks rather than in individual computers.

UNIX represents the programming interface for both instruction and data. Presentation made on desktop is quite splendid one. Moreover, it is multiple plat formed operating system. Code made for one platform can run easily anywhere on another platform. This makes it platform independent OS.

Both UNIX and the C programming language were developed by AT&T and distributed to government and academic institutions, causing both to be ported to a wider variety of machine families than any other operating system. As a result, UNIX became synonymous with open systems.

Like windows, it also supports multitasking feature in which more than one programs can run simultaneously. In multitasking OS, there is one more feature called multi threading which is more important and vital feature of UNIX.

UNIX was designed to be portable, multi tasking and multi user in a time sharing configuration. Unix systems are characterized by various concepts: the use of plain text for storing data; a hierarchical file system; treating devices and certain types of inter process communication (IPC) as files.

The use of a large number of software tools, small programs that can be strung together through a command line interpreter using pipes, as opposed to using a single monolithic program that includes all of the same functionality. These concepts are known as the UNIX philosophy.

Many features like text editors, paint tools and multimedia applications are provided with whole bundled package of UNIX. It also contains some useful libraries by which a program can link to other by creating direct reference to that desired file. This is a unique feature provided by UNIX.

Not only windows, UNIX system has several impacts on other operating systems like Linux. Moreover, UNIX provides device and peripheral control drivers automatically after installing whole package of UNIX.

Several components of UNIX are packed all together to create complete UNIX package. It contains some important components like kernel, system libraries, system functions, documents, files needed to make UNIX portable etc.

Both UNIX and C programming language were developed at AT&T; therefore there exist some impact of sequential programming language over UNIX, too. File system of the OS is organized in hierarchical manner. Inter process communication is one of the processing stages in the UNIX.

After all, UNIX is recommended by open software foundation, to provide free modification of program code, kernel program as you want. There is no need to restart after making modification. Changes take effect immediately after editing instructions in the software.

Operating system is nothing but integral software which is intentionally designed to manage data & process flow between hardware & software. Here, software can be any user defined programs, applications, games, etc. All these applications could not run if only OS is absent. OS is the abbreviation of the operating system, which is most familiar in todays world.

Operating system offers numerous services for memory or RAM, which in turn processed at CPU. However various processes in between them are solely handled at operating system. This is very important layer between computer systems.

Many applications access information through application programming interface. This API is also called as system function call. OS refers to these calls through various interrupts & exception handling mechanism.

OS therefore acts as an interface between computer hardware & user application or program. Interrupts are the way with which processor interacts with external hardware, peripherals & different components of the OS.

Among other things, a multiprogramming operating system kernel must be responsible for managing all system memory which is currently in use by programs. This ensures that a program does not interfere with memory already used by another program.

Since programs time share, each program must have independent access to memory. Cooperative memory management, used by many early operating systems assumes that all programs make voluntary use of the kernels memory manager, and do not exceed their allocated memory.

This system of memory management is almost never seen anymore, since programs often contain bugs which can cause them to exceed their allocated memory.

If a program fails it may cause memory used by one or more other programs to be affected or overwritten. Malicious programs or viruses may purposefully alter another programs memory or may affect the operation of the operating system itself.

OS provides one of the important functionality called as crash management technique, which in turn handed over to CPU. In crash management, OS check for all predictable exception that is having possibility occur in future & provides perfect management functions for them.

Virtual memory is one of the demanding features of todays OS. It manages memory for larger program size. Therefore, it is possible to execute those programs having larger size than program memory & hardware. Virtual memory creates space in hard drive for such programs so that they would execute.

In multitasking, many program executions are handled simultaneously. It is not possible task in single tasking system like DOS.