The increasing popularity of the computer rack both in home and office IT setup has led to its availability in the market. Though you can buy most any type you desire, you can save money by building your own computer rack. We have listed several DIY tips that can save you time and money.

Decide on the depth:
While most all racks come in a standard 19-inch EIA size, there is no standard for depth. Always keep this is mind when you are planning to design your computer rack at home. Measure your deepest hardware so you know how far you’re your rear rackrails need to be.

Measure in rack units:
Use rack units (U) to measure the height of the computer rack that you are designing. This would help you to get the accurate size. A rack unit (U) equals 1.75 inches. For instance, a common full-size rack size is 42U which equals 73.5 inches. Rackmount hardware is sold as a (U) size as well. It is common to see a 1U or 2U designation for a specific piece of hardware. This is a shorthand method of adding to see how much room is left when you are planning.

Building your computer rack frame:
You can buy pre-punched rack rails or make them yourself. If you make them, it is important to use the correct hole patterns. The two most common are universal and EIA. Universal hole patters are 5/8, 5/8, repeated and EIA are 1 , repeated. Common thread sizes are 10/32 and 12/24. 11 gauge steel is suggested when making threaded holes.

Specific power requirements:
Before designing your computer rack, decide on the density of power that will be required. Depending on your hardware configuration, you can determine if a vertical or rackmount powerstrips are best.

These are important factors that should be taken into consideration while designing or making a computer rack at home. Keep yourself tuned in to more articles by this author to know about the other things that are to be kept in mind for designing racks for computers at home.

Do you have a home network or have a small network in your office? If yes, you must know how to check wireless security of your wireless network. Technology has been evolving rapidly and so as wireless security. You need to employ new method of wireless encryption to block hackers from accessing the network and important data. Typically, wireless security settings are established with the installation and set up of the router. But it is very important to scrutinize the security from time to time. Even if you are adding a new computer or device to your wireless network area, it is very important to make sure that there is maximum protection from malicious objects.

When it comes to check the wireless security of your computer, you have two options. You can either perform the task on your own or you may get help from a computer repair service provider. Well, if you want to check the wireless security on your own, you must understand various types of wireless security. Basically, there are three types of wireless security. The first one is WEP, which stands for “wired equivalent privacy”, the second one is WPA, which is short for “Wi-Fi protected access” and the last one is WPA-2, which is the recommended wireless security setting for most laptops, computers, and home networks.

Once you have clear understanding of wireless security types, you need to access wireless security settings of your router. There are various types of routers and each router comprises a different way to access the settings. It is always recommended to explore the manufacturer’s website to have better information on how to access security settings page of the router. The easiest way to perform this task is click on “start,” and then access the “network.” The network tab will be displayed in Windows Explorer. Right click on the router, and find the “properties.” Here the manufacturer’s website address will be displayed. After getting into the website of the manufacturer, choose your particular model and brand of router.

WPA-2 is the most secure form of wireless security and it is strongly recommended to set your wireless security to WPA-2. In the security settings page of your wireless router you can find existing security settings of the router. If you find these settings are not currently set to WPA-2, just select it from the drop down menu.

These are some simple ways to check wireless security of your computer. Make sure your network is protected as it is the most important criterion to protect your important and sensitive data.

Online PC repair companies offer PC security support to the computer users. For computer repair in Australia, you can consult any reliable service provider.

Computer security hazards are a constant and never ending concern for information security managers, especially due to the increasingly deceptive modes of theft and hacking that are being created and developed. When it comes to security for computers, their programs and the information that you are protecting, there is never a moment where you want to find your organization or the management systems it uses are vulnerable or at risk. For this reason, it is crucial that you are always up to date on industry practices and norms, so that you can implement these new and revised techniques with each computer security hazard as they arise and to prevent future instances.

Any training you take to learn to manage computer security hazards and threats for a company and organization should provide you with a comprehensive education on the different types of threats possible, as well as how they function, how to prevent and detect them and how to fix the damage they can cause. You will also need to be informed off the way in which networks operate in order to create the most secure for your company, or if one is already in use, to know how it operates and how to reduce the security hazards that you might face.

Perhaps the most important and useful training you can receive is how to relay risk reduction and management skills to other individuals within the company. The biggest hazard to an organization’s network is the individuals that will be using it daily, and all of these people will need to be made aware of measures that need to be taken and educated in your network’s ability to deal with specific threats. This form of education and management is a vital role in reducing the hazards that can potentially plague the computer security of your firm, which is why it requires full time management. If you are able to combine your technical skills with great people and communication skills, this might be the best role for yourself in the field and present more opportunities for you career wise.

If you are considering a career in computer security management, training on the hazards to these networks is an important and integral part of that education. Because it is a field that is high in demand, the career possibilities and opportunities are great. Invest the time and energy in educating yourself about all aspects of this path in order to give yourself the best advantage when it comes time to look for employment. Employers are always looking for individuals with a wide breadth of understanding and knowledge surrounding the networks that they create to best serve their clients in order to grow and remain successful.

Nokia as a brand are known for the masses of middle range feature phones that they have produced over the years. This image looks set to change with the N8, a high end smartphone destined to compete with the best phones currently available.

One area where the Nokia N8 really excels is in the multimedia department. The manufacturers have obviously spent a lot of time creating a package fit to rival any other phone currently available. The camera immediately stands out on this model thanks to its massive 12 million pixel resolution, a wise move considering the industry standard seems to have settled at the 5 million mark. A major attraction of the camera is the superb standard of optics that it uses. This Carl Zeiss lens gives the photographs a real depth of colour which further enhances the already excellent results. Autofocus means there is never an excuse for your snaps to be blurred, even when lighting conditions are less than perfect thanks to the Xenon flash. High Definition is the word on every bodies lips at the moment, so media fans will appreciate the 720P video capture that looks great either on the phones excellent screen or when connected to a compatible HD television thanks to the mini HDMI socket. The video facility features a light for darker conditions and on the front of the device you will find an additional camera suitable for making video calls.

Storage options are extensive on the Nokia N8 The phone comes with 16GB of internal memory which is more than enough to handle the demands of your average phone user. Those who wish to make plenty of HD recordings, or who have extensive music collections they wish to store will be thankful of the microSD card slot which allow for a further 32GB to be added to the phone. Speaking of audio files, the N8 works superbly as a portable audio player. With regards the user interface, the phone utilises a system call “Coverflow”, which displays album artwork and makes finding your required track easy. There is no need to worry about audio formats as the N8 handles most, including eAAC+, MP3 and WMA. A handy RDS tuner means that should you want to catch up with the local new or radio, the device can handle this task. As you would expect from a phone with such extensive audio feature, a 3.5mm stereo jack allows the user to select their favourite headphones to use with the unit.

The Nokia N8 is more than just the perfect multi media handset. Great connectivity, gorgeous looks and an excellent processor make this handset undoubtedly Nokias best to date.

The Nokia N8 and the Nokia N97 Mini Gold are available now.

If your computer comes with elementary memory, then definitely you need a memory upgrade. There are different types of computer memories; and every memory has its own distinct functioning. In general, a computer memory has four prominent characteristics namely, volatility, mutability, accessibility, and address-ability respectively. The performance of a memory is therefore based on these virtual characteristics.

The volatile or temperamental memory is the emotional computer memory, which functions in a similar manner human emotions work. As humans have vacillating emotions and so does the computers volatile memory. Volatile needs constant power supply. If theres no power, then theres no volatile.

The dynamic and static computer memories are part of random access memory or the RAM. Both are volatile in nature, and need constant power source altogether. Dynamic memory refreshes itself after regular intervals of time, whereas the static memory doesnt refresh itself. The mutability characteristic of a computer memory is meant for reading and writing storage files, and come as immutable and mutable types respectively. It is extensively used for both secondary and primary storage purposes. ROM is a classic example of mutable and immutable storage memory which is quite crucial in writing on CDs, DVDs etc.

Sequential computer memory works great for off line storage purposes, as it is slow and all the information is gathered and accessed in a sequential order. Accessible is quite common in RAM as well as sequential memory, and gives an access to the stored files, which seemingly appears as instantaneous.

Lastly, the address-ability characteristic of memory is in three forms namely location, file, and content. For fast computer operations it is very necessary that you go for regular memory upgrade. If you are not upgrading the memory from time to time, then you are losing heavily on your computer efficiency. Memory can be purchased from third party vendors, but make it sure that you get original memory and along with the warranties, or else, in case of any technical fault, youd be at the problem end.

Computer-based instruction and educational activities have been a part of high school level curricula for some time, but the primary grades have adopted these techniques a little slower. However, the adoption of technological learning activities will increase sharply over the next few years. Experts disagree on the single most important driving factor, but there are clearly a number of distinct advantages to computer-based learning activities over more traditional educational activities. Here are five of the most important.

The pace of instruction concerns everyone involved in the development of educational activities. Parents often worry about their child being either left behind or held back by the performance of the other students in the classroom. Teachers using traditional learning activities have trouble progressing some of the students in a classroom if not all are ready. Computer-based educational activities assist here by allowing each student to learn at his or her own pace. One student can move onto more demanding educational activities before the rest of the class without disrupting anyone else’s learning. Simultaneously, another student can repeat certain learning activities as often as advisable.

Computer-based instruction can also enhance the relevance and quality of educational activities. This will often register as a prime concern for parents and students. Collaborating with an appropriate site for learning activities will provide the school district or classroom teacher with a wealth of choices. With educational activities organized by grade level and covering a vast array of subject material, a valuable partnering site will empower the instructor with the ability to choose learning activities to target the students’ needs best. Further, if the site includes authoring tools, the teacher or parent may create new educational activities to address any under-served curricular areas. Additionally, a user community, if offered, may enable the sharing of learning activities far more easily than before. Providing instruction on the computer then helps foster increased relevance for the lessons involved.

To compete in today’s society, students need to achieve a much higher level of comfort and ease with technological tools. Today’s primary age students will find computers and technology dominating their workplaces to a greater degree than their parents or perhaps even their older siblings. Another advantage of learning activities on computers for our children then is that it teaches on multiple levels. Our students not only master the curriculum materials embedded in the learning activities, but also become more adept at using computers, which is also of value to them.

Finally, computer-based instruction can help lower the cost of our kids’ educational activities. Instead of buying multiple copies of a textbook for each subject matter area, schools can invest in computers and software to attend to all students. Many sites for learning activities can be accessed for a modest monthly fee. This one fee can then address an entire classroom’s needs across many curriculum areas at once, and therefore provide an economical way to provide educational activities. For these reasons, classrooms will feature computer-based instruction going forward.