How To Repair
Tuesday, January 31, 2012
Latest list of billabong fee rates?
Fees structure for BillaBong nursery school?
But its basically meant for upper middle class.The fees structure is very high.
The education level is good,but that is really charged.
The charges for nursery is approx 60,000 and above.
How to Compress Data Using Huffman Encoding
Article provided by wikihow the wikihow manual.
Huffman's algorithm is used construct a tree that is used for data compression as well as encryption. We'll discuss how to construct the tree here.
We'll assume that each character has an associated weight equal to the number of times the character occurs in a file, for example. In the "go go gophers" example, the characters 'g' and 'o' have weight 3, the space has weight 2, and the other characters have weight 1. When compressing a file we'll need to calculate these weights, we'll ignore this step for now and assume that all character weights have been calculated. Huffman's algorithm assumes that we're building a single tree from a group (or forest) of trees. Initially, all the trees have a single node with a character and the character's weight. Trees are combined by picking two trees, and making a new tree from the two trees. This decreases the number of trees by one at each step since two trees are combined into one tree. The algorithm is as follows:
Steps
- 1Begin with a forest of trees. All trees are one node, with the weight of the tree equal to the weight of the character in the node. Characters that occur most frequently have the highest weights. Characters that occur least frequently have the smallest weights.
- 2Repeat this step until there is only one tree:
- 3Choose two trees with the smallest weights, call these trees T1 and T2. Create a new tree whose root has a weight equal to the sum of the weights T1 + T2 and whose left subtree is T1 and whose right subtree is T2.
- 4The single tree left after the previous step is an optimal encoding tree.
Article provided by wikihow the wikihow manual. Please edit this article and find author credits at the original wikiHow article on How to Compress Data Using Huffman Encoding. All content on wikiHow can be shared under a Creative Commons license.
How to Check BIOS Version
Article provided by wikihow the wikihow manual.
The term BIOS, or Basic Input/Output System, originally referred to a specific type of interface between a computer system's firmware and its operating system. However, among consumers, the term BIOS has evolved into a term used to describe any interface between firmware and operating system. Some PC-based systems now use Unified Extensible Firmware Interface (UEFI), however most systems still use the BIOS interface. Apple's Intel-based systems have transitioned from the Open Firmware interface to the Extensible Firmware Interface (EFI). In order to update your system's firmware, you will need to know the specific firmware to operating system interface your system uses and what version it is. In this article you will learn how to determine the interface your system uses and how to check which BIOS version your system is running.
Steps
Windows 7
- 1Use either of the following techniques in Windows 7:
- MSinfo32 Method: Determine the BIOS version in Windows 7 using the "msinfo32" command. Select "Run" from the start menu, type "msinfo32" into the open field and click "OK." Locate the BIOS version/date entry in the items column. The BIOS information will be listed in the adjacent column labeled "Value."
- Command line method: Select "Run" from the start menu, type "systeminfo" into the open field and click "OK." Locate the BIOS version in the column on the right. The BIOS version will be listed in the adjacent column.
- MSinfo32 Method: Determine the BIOS version in Windows 7 using the "msinfo32" command. Select "Run" from the start menu, type "msinfo32" into the open field and click "OK." Locate the BIOS version/date entry in the items column. The BIOS information will be listed in the adjacent column labeled "Value."
Windows Vista and XP
- 1Locate the BIOS information using Windows XP and Windows Vista. Select the "All Programs" option from the start menu and click "Accessories." Locate the system tools option and select "System Information" from the pull-down menu. Locate the BIOS version/date entry in the items column. The BIOS information will be listed in the adjacent column labeled "Value."
Mac
- 1Determine your Mac system's EFI version. Select "About this Mac" from the Apple menu. Select "More Info" from the menu options. Choose the "Hardware" option from the Contents menu. Scroll down the panel on the right to find your system's EFI version and determine the EFI version your system is running.
Tips
- Once you have determined the version of BIOS running on your system, you can update your computer's firmware. Navigate to the manufacturer's website to confirm that your firmware has the most recent update. An Internet search using the information obtained by accessing your BIOS information will produce the firmware manufacturer's website.
- When updating your BIOS, UEFI or EFI, it is recommended that your system be connected to an uninterrupted power supply (UPS) unit. A power interruption during the update process can cause serious damage to your system and may even render your system u
Article provided by wikihow the wikihow manual. Please edit this article and find author credits at the original wikiHow article on How to Check BIOS Version All content on wikiHow can be shared under a Creative Commons license.
Saturday, January 28, 2012
How to Buy Used Networking Equipment
Article provided by wikihow the wikihow manual.
Virtually any product you need today is available on the secondary network equipment market. The secondary network equipment market is an established industry spanning well over a decade. Distribution channels are flush with high-quality, current generation as well as end-of-life equipment.
Paying full price for new networking equipment can be a blow to your wallet in these trying financial times. Here are some money saving steps on purchasing used networking equipment.
Steps
- 1Do your homework on which hardware is available on the market. Look at what products are out now: Amazon.com and Newegg.com have great selections and user reviews on quality and usefulness. Usually, most anything can be found, but if you are looking to replace a fried older device, it might be very rare and may require a lengthy search.
- 2Choose which product manufacturer includes the best features that you are interested in, such as the types of Wi-fi protocols supported, number of ports on a switch, and security features.
- 3Locate used or refurbished hardware at prices up to 90% less than the current market value. Check places like Craigslist, Half.com, and eBay. Amazon.com sometimes sells used items on the same product page as the new, so be sure to keep an eye open for that.
Tips
- Remember that you are dealing with secondary networking equipment so be sure to haggle.
- Call a few and get them to compete on prices.
- Make sure you get a warranty
- It is vitally important to make sure you select a company whose specializes in secondary market product sales to the end user market. This is important because most of the companies in the used and refurbished networking equipment market do not have the capabilities to sell and support the product.
- Ask questions like: What is the process and turn around time if I do have a warranty issue? Advance replacement, return and repair, etc. (A company can warranty the product forever; if they can't send you a replacement or repair in a timely manner what good is it.)
- Ask questions like: What is their quality process and the standards they follow? Is the company certified in TL9000/ISO standards? Do they have a complete test lab, do they provide standard test documents with they equipment to verify it has in fact been tested. Do they have certified Engineers on staff?
Warnings
- Watch out for counterfeit equipment. Ask your dealer if they are in UNEDA
Article provided by wikihow the wikihow manual. Please edit this article and find author credits at the original wikiHow article on How to Buy Used Networking Equipment All content on wikiHow can be shared under a Creative Commons license.
How to Buy Computers Without an O S
Article provided by wikihow the wikihow manual.
Few, if any, computer manufacturers offer systems packaged without an operating system installed. However, consumers who wish to install their own operating system on a new computer have several different options. The least labor intensive option would be to purchase a pre-assembled system with an operating system installed, and then simply replace the included operating system with the one of preference. Another possible option is to purchase what is called a "barebone" system. A barebone system is designed for gamers and other computer enthusiasts who prefer to custom design their own system based on their individual needs. A barebone system typically contains a motherboard and power supply pre-mounted in a computer case. Each of the other components, such as a hard drive, graphics card, RAM memory and optical drives are then installed by the user. This article provides instructions for buying a system without an operating system, and how to replace an operating system already installed on a computer.
Steps
Evaluate the Pros and Cons of a Barebone System
- 1Consider the advantages of purchasing a barebone system. Building a barebone system can be a cost effective option, allowing more advanced users to save 30 to 50 percent over the cost of a pre-assembled system. A barebone system can be customized to suit your specific needs. This method is a good option for those who wish to avoid the proprietorial restrictions computer manufacturers place on service contracts.
- 2Consider the disadvantages of purchasing a barebone system. Building a barebone system requires a certain level of expertise, exceeding that of the average user. The typical barebone system may only include a power supply, motherboard and case. Various components will have to be installed, such as an optical drive, RAM memory, video cards, audio cards and hard drives.
- Remember that, typically, no technical support contract or warranty will be included with the purchase of a barebone system. Additionally, no operating system or software bundle will be included, which can raise the price of a barebone system to exceed that of a pre-assembled system.
Purchase a Barebone Computer System
- 1Choose the configuration that makes the most sense for your particular situation. Several manufacturers offer barebone systems. An Internet search using the key word phrase "buy barebone system" will produce a list of retailers offering a variety of different configurations.
- 2Evaluate the compatibility. Pay particular attention to the motherboard installed and double-check to ensure that it is compatible with the components you wish to use to complete your system, such as RAM memory, video cards and hard drives.
- Take note of the size of the computer case and confirm that it will accommodate the components you plan to install on the system.
- Check the number of RAM memory slots to confirm that there are enough to accommodate the amount of RAM you wish to install.
- Confirm that the motherboard has a PCI-E slot installed if you plan to install a PCI-E video card.
- Take an inventory of the available ports, such as USB, Firewire and Ethernet ports, to confirm that the barebone system will accommodate the number of peripheral devices you plan to connect.
- 1Replace the hard drive on a pre-assembled system and install the desired operating system. An external hard drive can be purchased and connected with a USB cable, eliminating the need to open the computer case.
- Connect the external drive using a USB connecter cable, typically included with the drive at the time of purchase. The computer can then be configured to boot to the external drive, instead of the internal drive installed on a pre-assembled system.
- Install the preferred operating system on the external drive once it has been connected. Follow the instructions included in this article for accessing the BIOS feature and installing the preferred operating system.
- 2Replace an existing operating system on a pre-assembled system. The operating system installed on a pre-assembled system can be erased and replaced with the preferred operating system.
- Change the BIOS settings to boot to CD.
- Restart the computer and open the BIOS configuration interface by repeatedly pressing the assigned hot-key. The assigned hot-key will vary by BIOS manufacturer, but is typically listed on the bottom of the screen just after the computer is turned on. In most cases the hot-key for opening the system BIOS will be the Delete key, the F1 key, the F2 key or the F11 key.
- Insert the operating system disk into the optical drive. Once the BIOS has been set to boot to the CD, or optical drive, insert the operating system CD and follow the instructions as prompted to format the hard drive and install the new operating system. The installation program will guide you through each step and notify you once the installation is complete.
Tips
- Macintosh users will find it much more difficult to purchase a computer without an operating system installed. Macintosh computers are not as well suited for customization as PC-based systems, and Apple does not distribute "barebone" systems. However Mac users do have the option of installing a new operating system or a new hard drive. The instructions provided in this article for installing a new hard drive or operating system are appropriate for both the Mac and PC platforms.
Article provided by wikihow the wikihow manual. Please edit this article and find author credits at the original wikiHow article on How to Buy Computers Without an O S. All content on wikiHow can be shared under a Creative Commons license.