Q1. How do I clean inside my computer tower?
A. If you want to clean the build-up of dust from inside your computer case, you must shut the system down first, and make sure you are not working on carpet or any surface that is a electricity conductor. It is recommended you ground yourself, using an electronics wristband or other professional grounding equipment. To clean dust from the components inside you will need compressed air, an anti-static cloth, a small (child size) soft paint brush, and a cleaning fluid made specifically for electronics. Inside the case you will want to use the compressed air to clean around the fans, power supply and areas where the dust is building up. Be careful not to aim the air directly towards any circuit board or electronic components in the case. Use short blasts and arm movement to direct the falling dust outside of the case. You can use the small brush to dislodge dust in areas where the compressed air did not remove the build-up (such as the edges of fan blades). You can also use the brush to wipe dust away from the inside case walls and the wires. If you find dust has fallen down to the bottom of your case, dampen the anti-static cloth with the electronics cleaner and wipe along the bottom of the case to remove it. You can also use the damp cloth to wipe all around the metal case of your tower and the cover.
Q2. What is a motherboard?
A. The main circuit board inside your computer is called a motherboard. The motherboard contains the connectors for attaching additional boards, such as the CPU, BIOS, memory, mass storage interfaces, serial and parallel ports, expansion slots and all the controllers that are required to control standard peripheral devices such as the display screen, keyboard, and hard drive. Collectively, all these chips that reside on the motherboard are known as the motherboard's chipset. You can think of the motherboard as a communications center. The purpose of the motherboard is to provide the means for all the other components and peripherals to talk to each other. You may be able to upgrade to a faster PC by replacing the CPU chip (processor) or improve performance by adding RAM (memory).
Q3. How do I clean an LCD Display?
A. LCD monitors require a different cleaning than the older CRT does. LCDs are not made of glass and will have special coating on them for anti-glare. Following your manufacturer's recommendations is the best method for cleaning an LCD. If you can't obtain this information, here are a few general tips: Never use paper towel on an LCD as it can cause scratching. Instead be sure to use a soft cotton cloth. You can also purchase microfiber cleaning cloths that are designed for LCD and camera lens cleaning. If a dry cloth cannot remove the prints, you can use a special LCD cleaning liquid. Always slightly dampen the cloth and wipe, do not put any liquid directly onto the display.
Q4. What is smitfraud?
A. Also called rogue anti-virus software or scareware this type of software is also most commonly defined as malware—it is designed specifically to damage or disrupt your computer system. In this case, not only is the software going to disrupt your system, it's going to try and trick you into making an unsecure credit card purchase. Rogue anti-virus programs usually appears in the form of a fake Windows warning on your computer system that reads something like, you have a specific number of viruses on your computer (usually in the hundreds) and that this software has detected those viruses. To get rid of these viruses, you're prompted to buy the full-version of the antivirus software, which is really rogue antivirus software.
The good news is that you probably do not have a computer that is infested with hundreds of viruses as the rouge software claims. The bad news is that the rogue antivirus software itself is on your computer and you must remove it. Removal is hindered as rouge software can lock the control panel and the the Add/Remove Programs function to prevent you from removing it easily.
The good news is that you probably do not have a computer that is infested with hundreds of viruses as the rouge software claims. The bad news is that the rogue antivirus software itself is on your computer and you must remove it. Removal is hindered as rouge software can lock the control panel and the the Add/Remove Programs function to prevent you from removing it easily.
Q5. What is a Windows System Registry?
A. The system registry is one of the most important parts of a Windows-based computer system. Not to be tampered with lightly, the registry is a system-defined database used by the Windows operating system to store configuration information. Most Windows applications write data to the registry during installation, and system components store and retrieve configuration data through the registry. The data stored in the registry varies according to the version of Microsoft Windows.
Q6. Who owns the Internet?
A. No one actually owns the Internet, and no single person or organization controls the Internet in its entirety. More of a concept than an actual tangible entity, the Internet relies on a physical infrastructure that connects networks to other networks. There are many organizations, corporations, governments, schools, private citizens and service providers that all own pieces of the infrastructure, but there is no one body that owns it all. There are, however, organizations that oversee and standardize what happens on the Internet and assign IP addresses and domain names, such as the National Science Foundation, the Internet Engineering Task Force, ICANN, InterNIC and the Internet Architecture Board.
Q7. Is the Internet and the World Wide Web different things?
A. The Internet and the Web are two separate but related things. The Internet is a massive network of networks, a networking infrastructure. It connects millions of computers together globally, forming a network in which any computer can communicate with any other computer as long as they are both connected to the Internet. Information that travels over the Internet does so via a variety of languages known as protocols. The World Wide Web, or simply Web, is a way of accessing information over the medium of the Internet. It is an information-sharing model that is built on top of the Internet. The Web uses the HTTP protocol, only one of the languages spoken over the Internet, to transmit data.
Q8. What is an Internet cookie?
A. An Internet cookie is the term given to describe a type of message that is given to a Web browser by a Web server. The main purpose of a cookie is to identify users and possibly prepare customized Web pages or to save site login information for you. When you enter a Web site using cookies, you may be asked to fill out a form providing personal information; like your name, e-mail address, and interests. This information is packaged into a cookie and sent to your Web browser, which then stores the information for later use. The next time you go to the same Web site, your browser will send the cookie to the Web server. The message is sent back to the server each time the browser requests a page from the server.
Q9. When I search the Web I sometimes see a "404 File Not Found" error. What does this mean?
A. Errors on the Internet, and those annoying error messages, occur quite frequently — and can be quite frustrating Many times they have more to do with the Web servers you're trying to access rather than something being wrong with your computer. A 404 error means that the server cannot find the file you requested. The file has either been moved or deleted, or you entered the wrong URL or document name. Look at the URL. If a word looks misspelled, then correct it and try it again. If that doesn't work backtrack by deleting information between each backslash, until you come to a page on that site that isn't a 404. From there you may be able to find the page you're looking for.
· Resource: Web Server Error Messages - Want to know the difference between a 404 error and a 502 error?
Q10. What is a "HotSpot"?
A. A Wi-Fi hotspot is any location in which 802.11 (wireless) technology both exists and is available for use to consumers. In some cases the wireless access is free, and, in others, wireless carriers charge for Wi-Fi usage. A hotspot is defined as a specific geographic location in which an access point provides public wireless broadband network services to mobile visitors through a WLAN. Hotspots are often located in heavily populated places such as airports, train stations, libraries, marinas, conventions centers and hotels. Hotspots typically have a short range of access. To use Wi-Fi, you must be using a computer or PDA that has Wi-Fi connectivity. Newer handhelds, notebooks and tablet PCs will come equipped with Wi-Fi, or you can add Wi-Fi capabilities by using an adapter that plugs into a PC card slot or USB port.
No comments:
Post a Comment