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 Computers and laptops are very expensive. So in buying one, the customer must choose the best one for him/her. Computers are very helpful with school or work. That is why even if it is very expensive, people still buy them. It is one of those gadgets that have become part of our lives, just like those mobile phones. A lot of people own computers because it is very useful. You can do a lot of things with it, for both work and leisure . Since we use it for a lot of things, the customers must make sure that the computer that they buy has a good computer performance. Since they spent a lot of money , they should be able to use for a long time and they will be satisfied with it. There are different brands and models that are being sold in the market but what are the factors that people look at when they are buying computers? Of course, most people check for the brand. They would rather buy those popular brands because they know that a lot of people get this kind of brand. A lot of buy

 After the computer is used for a period, you must have the feeling that it can't run as fast as the beginning, which is because in its hard disk, many junk files have been accumulated. All the work you do with a computer, such as install and remove software or surf the internet, will leave junk files on the computer. And much hard disk space has been occupied by them so that the computer runs slower and slower. Then what are junk files on the computer? 1. The Temporary File Which Is Produced When You Install a Software Application. When a software application is installed, it will unzip its installation file to a temporary directory first, usually the temp directory under the folder of Windows. If the software is designed with some bugs or the operating system is not so perfect, temporary files will become junk files on the computer permanently. They often exist in the form of *.tem. 2. The Temporary File Which Is Produced by the Running Software. The same with the installing p

 Hardware refers to computer chips, circuit boards, computer systems, and related equipment such as keyed equipment such as keyboards, modems, and printers. The work of computer hardware engineers is very similar to that of electronics engineers, but unlike them, computer hardware engineers work with computers and computer-related equipment exclusively. Hardware jobs include production and service engineers, R&D and maintenance engineers. Most trained engineers are employed by the computer equipment manufacturers. For this job, a very specialized training is required and that can only be acquired in postgraduate course of computer engineering and technology. A diploma in a specialized branch of engineering with special emphasis on training for specific jobs and work experience may be adequate as qualifications only for some jobs. Technology related to computers is changing very rapidly; hence there are exciting challenges for the computer professionals in hardware. They can lear

 Computer is an electronic device used to accept the data in the form of digitalized (binary 0 and 1) to perform some task based on the sequence of instructions program. Five generations of computers, First generations of computers (1940-56) operated in vacuum tubes. Computers use the vacuum tubes for circuitry and magnetic drums for memory. The drum rotates at a speed of 3000 rpm. This computer is very expensive to operate and it wants more electric power and it produces a lot of heat. First generations of computer understood machine level language, lowest level programming language to perform the operation. Input of the system is punched cards and paper tape and the output was displayed only on printers. Disadvantage, It requires more space Very expensive to operate It needs more power Second generation computer (1956-63) transistors replace the vacuum tubes. Transistors are devices that consist of semiconductor material that amplify the signal. Transistors eliminate the disadvantage

 The earliest micro Local Area Networks were easy to install. Telephone wires were strung between the micros or coaxial cable was installed behind a wall. Each micro needed a Local Area Network adapter card on its main bus, which translated requests into network packets and vice versa. These early networks were used primarily to share devices such as laser printers and plotters. The network software was installed on a micro that was hooked to the shared devices. This machine becomes known as the server. The next logical step was to allow users to share data. Early implementations transferred data as complete files. When a user requested information from a file, the whole file was sent over the network to their machine. The file was locked and was not available to any other user. Software advances modified the procedure so that files were accessed for query only, thereby not locking other users out. However, complete files were still sent over the network, Software advances have now tak

 We've all had this happen. You get a shiny new accessory for your computer; a printer, a scanner, a webcam, or whatever else. You hurry home, tear open the packaging leaving a trail of cardboard between the door and your computer. You fire everything up, plug the new toy into your PC and... nothing. No sign of life other than the power light. Your new <insert device name here> isn't working. You're having a driver issue. Most people only vaguely understand what a driver is, or what it does. Basically, a driver (or device driver) is a file or set of files that provide an instruction manual to the computer. Drivers tell your computer what's connected to it, and how to talk to that particular device. Nowadays, Windows has a lot of drivers built into it, so it can recognize more and more devices with each new version. But there will always be devices that are too new or too sophisticated for built-in drivers. Manufacturers provide discs with the drivers on them, but

 OS Commerce is an open source shopping cart product management suite. The term "open source" means the code used is available to anyone and can be modified as you see fit. This product has been under development for some time and has a robust feature set. OS Commerce is solid and can be modified extensively with plugins and themes that will allow the site to match any look and feel while maintaining a high level of functionality. This tool can also be used to communicate to customers through an email marketing system. Using OS Commerce at a higher level should also include a professional template that creates a solid impression and doesn't distract visitors. Installing OS Commerce can be done manually, through an automated system, or by having a professional company assist. In any case, the installation requires a MySQL database that contains the details regarding customers, products, and site information. Several hosting solutions offer this OS Commerce as a package

 The advent of modern technology has brought many changes in the way we live, especially in the way we interact with other people. Communications technology for one has leap-frogged from one generation to the next at a rate faster than ordinary people could imagine. There is now the possibility of communicating with people from other parts of the Globe with just a click of a button in either your cell phone or computer. News and information about what's happening everywhere are shared in real time by the internet and other communications technology and there is no stopping the onslaught of new developments that will further enhance the way we live and the way we do things in the future. Increased interaction between and among people of different races and nationalities coming from different countries has brought about the need to re-consider the peculiarities attendant to each individual particularly the difference in time zones. The Chairman of the Board in Canada wanting to

 The global giant recently announced a number of freshly customized products for the Indian community. Google expressed its interest particularly for products that support Indian languages. The announcement was spearheaded by the growing number of Indian internet users, who prompted for an aim of extending their reach across the country . In this year's Google event for India, the company said it is seeking measures to correct the issue. This comes shortly after the online giant noted that the number of Indian speaking users on the web is expected to hit 500 million before the end of 2020. Every year, the country receives around 40 million unique users and not only from metropolitan areas but most surprisingly from the rural areas. Also revealed was the intention to activate the dormant products that are already in place, with some of them receiving assistance for new languages. Google maps: Indians will get voice assistance in both Hindi and English. Google feed: Available

 Having trouble finding a good SEO friendly directory list? You are not alone! Many well established website directories can take months to review your submission requests, and most of these established web directories have strict listing standards. Below you will find our free website directory listings. Most of the free web directories on this list are new, while others have been recently discovered. We will continually add to this directory list, so please check back often. Our lists contain valuable internet marketing resources for the SEO professional and novice internet marketer alike. We are pleased to announce our latest list to help you in your internet marketing efforts. contains the best premium web directories available to help webmasters with their online advertising and search engine optimization efforts. We hope that you find our free directory list useful. We do our best to find the best new free web directories to list, so that our submissions are reviewed quickly

 How to Do Good LAN Infrastructure Cabling Among important things to consider when doing your LAN cabling are the purposes of the cabling, the location at which you are doing the cabling and the users or devices that need to connect to this network. Of importance is to note that there are mainly two types of network switches that one can always use on the LAN infrastructure. They are the standard none (POE) Power over Ethernet switches and the POE switches. POE switches are those that not only transmit data packets but also power the device at the receiving end. The location where the LAN infrastructure is being laid is important because it will determine the type of CAT6 cable that you have to use. There are mainly two types of CAT6 cables you can choose from. They are (STP) shielded twisted pair and the (UTP) un-shielded twisted pair. STP is technically recommended for outdoor situations since they come with an extra shielding in the sheath. This extra sheath ensures your cables do

 Rapidly changing market dynamics is pushing all businesses belonging to different industry verticals, especially manufacturing, to come up with innovative ways to streamline the '3 D's of product lifecycle i.e., design, development and deployment, to deliver marketable and reliable products. Emerging and ever changing consumer tastes , evolving regulations, and ageing demographics call for a partner who can enable technology solutions that generate tangible and measurable value for businesses in order to achieve a strategic edge on their competition. Organizations that envisage co-building along with all its stakeholders, an integrated and sustainable world by leveraging technology, always stay ahead of the rest. Focused commitment and unique business models built around relationships and customer commitment is what wins the race and sustains it till the end. One positive aspect in this race to success is that technology has become more intelligent, safer and eco-friendly.

 In case if you are concerned about the security of your home or business, installing security cameras could be great. It keeps you updated about the happenings around your house. However, in the contemporary scenario, it is mandatory to install more than one camera . You need to install a system that comes with multiple cameras and some with digital video recorders as well. The DVR security systems will allow you to store the footage. Home security systems these days are pretty difficult to install, especially with their cables and cords. You may possibly not be able to put up a camera in a certain spot because of the cables . On the other hand, if you are dealing with wireless camera systems, you do not have to worry about those excessively long cables. Wireless security systems are pretty easy to install and they give a sophisticated look to your house. The regular systems have their cords running along the ceiling or on the floor and hence could be seen from a distance. This not on

 Home computers are popular among intruders. Home computers with internet connections usually stay connected and this is a good time for intruders or hackers to do their ill will. Intruders may steal your bank records, credit cards information and thus spend your money without your permission. Your computer including the hard disk space, your processor and your internet connection will also be at risk from hackers. Unscrupulous individuals deliver viruses in your computer by hacking your system. In order to protect your home computer, you will need the following: -Install Antivirus programs -Be careful in opening emails -Install a firewall program -Backup important files Use unique password Install Antivirus programs Virus may harm your computer including the files in it. If virus enters your computer it may be hard to delete it entirely because virus signature oftentimes lingers in your computer system. Thus, it is important for you to install an antivirus program. By installing

 Simply put, optical modulation is the process of impressing information on a light carrier; it involves varying one or more of the features that define the optical wave, such as its power level, frequency, or phase. Our current fiber optic communication systems almost exclusively use semiconductor laser as the light source, and by far the easiest way to modulate the light is to modulate its power level. The amount of light power the emerges from the device depends on the electric current that is injected into it. The greater the current, the more light power . But, the relationship between the input electric current and the output light power is not directly proportional: doubling the current does not produce double light power. Optical fiber supports the following modulation schemes, known as optical modulation. 1. Continuous: in optics, we usually call this intensity modulation, similar to analog modulation, with the only difference being in the nature of the optical carrier si

 If you are a true tech savvy, you must be know about the significance of the Internet. . But have you ever faced the frustration of slow system or Internet errors stooping you from smooth surfing? You should be concerned about how the Internet hampers the efficiency of your computer operations. If you're facing all such computer problems every now and then, you must install an efficient firewall software program or antivirus or a spyware and try to safeguard your valuable information in every possible way. One of the simplest ways to guard your PC against such perilous errors is to avail help of computer support resources. There have been a number of computer help and support centers that are fast accommodating a growing need for expert computer services at the most reasonable rates. Irrespective of which computer brand you use, there are times that your computer may start acting up. Computers are highly sensitive machines that need ongoing maintenance. They don't keep goi

 Technology, that's what got us all into this mess isn't it? The internal combustion engine , jet propulsion, mechanized farming, power stations, pesticides, industrial pollution; the list goes on, and on. And now we're due to pay the price with both global warming and oil depletion looming as a result of squandering the earth's resources to feed our addiction to technology. Surely, since technology is so clearly to blame, we should strive to roll back the tide and oppose further so-called technological progress? Do I hear any takers for this proposition? A return to a golden age, lit by candles at night and warmed by the crackle of logs in countless hearths ; a renaissance of home grown crops, chickens in the yard and beating your clothes on a rock down by the river just like you see in the movies? Oh I'm sure there are some diehard romantics who buy into the self sufficiency fantasy, but the really inconvenient truth is that if we all set about burning logs to bo

 Everyone needs help to obtain useful information about desktop usage and related functions. You can also find latest advertisements featuring new products or other information, updated regularly. The users get the hands-on information which enables them to compare features of different desktops. Best assistance is available online for the users to choose the right one they are looking for. Before going in for a new desktop PC, some of the points that have to be taken care are the specifications like the technology used, processor type, in-built devices , accessories, etc. Major components like RAM, hard drive, storage functions, displays and connectivity options should also be considered . The features that are available on the device are incredible, which has the options of video memory, sound card and the storage controller. RAM and memory slots are the options provided to store the data of all types. This offers the users an option of high speed processing, network adapter; stor

 As an IT Manager, you should always be prepared for an IT audit request. By being prepared for any kind of hardware auditing request, you are in a stronger negotiation position with manufacturers - when the threat of an IT audit is no longer menacing. Moreover, IT departments are frequently required to reconcile their physical inventory with an electronic inventory to meet various regulatory and financial requirements. This can be cumbersome, unless you have implemented an IT Asset Management tool that allows you to manage and audit your entire computer inventory easily. Beyond the complexities of hardware audits, software asset management introduces even greater challenges -- for example, auditing a hardware device for the software it contains, and the complexity of software recognition - mapping the many files found to licensed applications and units in the accounting system. To perform an IT audit you need to create a detailed computer inventory of all computer assets in your netwo

 Making sure that you have installed the best internet security suite that is available today is one of the unwritten, and very important, rules that every PC user should follow. Just about everyone has heard the chilling stories about how computer viruses have caused havoc for a person's computer, often causing them to lose valuable data. Even worse are the stories of the internet threats to computer security that have led to someone having their identity stolen. As technology advances at a rapid pace to bring the market greater functionality and usability, there are more and more people who are constantly trying to take advantage of technology to infect and intrude on the personal computers of individuals and companies alike. Because of this ongoing battle between the advances in technology and the bad guys trying to make the most of technology for their benefit, there is a constant need for internet security protection software. An online security suite of software is abl