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Friday, April 29, 2011

Parts of a Fiber Optic Cable


In the early 1980s fiber-optic cables connected most of the major cities in North America. Today fiber-optic cables circle the globe caring voice, video and data signals over these glass fibers. There are many different types of fiber-optic cables dedicated to many different applications, but they all share the same common configuration.

Core
The very center of the fiber-optic cable is a thin piece of glass that provides the path that the light signals follow. This part of a fiber-optic cable is called the core. The core is very small in diameter. Both single-mode and multimode fibers (cores) are 125 microns outside diameter. To put this in perspective, a micron is one 1 millionth of a meter, or 125 microns, and is equal to 0.005 inch.

Thursday, April 28, 2011

Coaxial Cable Types



Coaxial cables are cables that consist of two conductors that share an axis. The inner conductor is usually a straight wire; the outer conductor is the wire's shield, which is usually a braided wire or a metal ribbon. It is used primarily for radio and television signal transference. The combination of the center conducting wire and the outer conducting shield keeps other cable noise out and the signal in.

Types
Different types of coaxial cable rated by the U.S. government are designated by the letters RG and then a number. RG stands for "radio grade" and are from when the Army used most of its coaxial cable for radio transmission. The numbers were chosen arbitrarily. The most common RG designations are RG-6, RG-8, RG-11, RG-58, and RG-59. The main difference between them is the impedance. RG-8 and RG-58 have a 50-ohm impedance, while RG-6, RG-11, and RG-59 are 75 ohms.

Types of Cat5e Cables


The group of cables surrounding your computer or workstation is most likely composed of category cables, or Cat cables. These cables have various data transmitting capacities, ranging from the minimal traffic to the bandwidth-intensive amount of 100 GbE. Learn to differentiate one from the other so that you can do some minor troubleshooting when you have connection issues.

Identify the Cable
Category 5 cables, nicknamed Cat5, are cable types designed to carry data from one computer center to another. To check what specific type of cable you have in your hands, look at the printed siding, which will indicate the type of category to which your cable is compliant. Category cables have various data transmission limits, starting from 10 MbE (megabit Ethernet) to 1000 GbE (gigabit Ethernet). Category 5 cables deal with the 10 to 1000 MbE range. Cat5 cables are also differentiated by the type of material used to make them, such as the PVC type (emits poisonous smoke while burning) or PLENUM type (more expensive but safer type).

Difference Between Cat5e & Cat6e Cable



Cat5 and cat6 cables are used for computer network cabling, most commonly for Ethernet cabling. The "e," as in "cat5e," stands for "enhanced." Cat6 cable reduces interference between the conductors and is rated for higher transmission speeds and bandwidth than cat5 cable. There are specifications for cat 5, cat5e and cat6, but the next level would be cat6a, even though cat6e is being sold as an enhanced cat6 cable with higher speeds than plain cat6.

Performance
Cat5 cable has been widely used since 100 megabits per second (Mbps) networks became common in the 1990s. With higher network speeds going up to 1000 Mbps, or gigabit Ethernet, cat5e was introduced to address this speed requirement. Gigabit Ethernet represents the limit of the cat5 specification, so cat6 was introduced to handle still higher speeds. It is certified up to 10 gigabits per second (Gbps). There is no specification for cat6e, but suppliers are offering such cables as non-standard enhanced cat6 cables.

Wednesday, April 27, 2011

IEEE Standard Wiring Colors




IEEE does not specify wiring colors; this is done by the Telecommunications Industry Association (TIA). However, IEEE standards must be followed for electronics and electrical design using wires following TIA color codes. Furthermore, IEEE has color-coded its electronics design books based on the type of equipment, called the IEEE "Color Books."

Default Color
According to "LAN Wiring" by James Trulove, "the most common color for nonplenum coax cable is black. Most of the nonplenum cable that is used for LAN wiring will have a black synthetic rubber or PVC outer jacket with white markings." The white markings then specify the wiring type and the standards that the wiring meets, such as IEEE or EIA standards.

Four-Pair Wiring Colors
The Telecommunications Industry Association has issued standard TIA 568A and 568B that define a standard color code for wiring. Each color combination for a wire pair identifies the type of wire. "Network+ Certification All-in-One Exam Guide" by Michael Meyers says "manufacturers color-code each wire within a piece of a four-pair UTP to assist in properly matching the ends. Each pair of wires consists of a solid-colored white and a striped wire: blue/blue-white, orange/orange-white, brown/brown-white, and green/green-white." Wiring can be color-coded based on the connection speed and end connector in accordance with TIA 568A and 568B in addition to meeting IEEE design standards. According to "Planning for the Fiber Distributed Data Interface" by William E. Burr, "the connector used for terminating the shielded twisted pair at the outlet is that specified by ANSI / IEEE 802.5 (token ring)."

How to Use Secondary IP Addresses With HSRP



Hot Standby Router Protocol (HSRP) is a Cisco proprietary protocol that takes two different devices and makes them into one. Configurations make the interfaces appear as if they are all part of one big "virtual router" with the same default gateway. The configuration provides for redundancy in the case of a failed link, failed port or total switch failure.

1). Decide how many groups that you need. The first group is the primary Internet protocol (IP) on the interface. Any additional IPs are secondary entries and each IP has its own group. This group includes the range of IPs that the hosts will also fall under. The first IP of the range is for the standby IP of the "virtual router" and is passed back and forth between the two switches. The next two IPs are for the interface on each router that will participating in the group. All other IPs in the range belongs to the hosts that are connected to the switch.

Transfer All Data From HDD to HDD


Computer technology, including the acronyms and jargon that go with it, can confuse most people. Computer technicians used to joke that a PCMCIA card stood for people can't memorize computer industry acronyms. HDD is a bit simpler, as it stands for hard disk drive, as opposed to floppy disk drives or FDDs. Moving data between hard drives is less complicated than remembering the acronyms, though.

1). Find all of your files. Right-click on the "Start" menu and choose "Open Windows Explorer." Right-click on the hard drive and choose "Copy." If this is your Windows operating system hard drive, the files will be copied but you will not be able to run the operating system from the second drive.

Tuesday, April 26, 2011

Deleting the Master Boot Record on a Partition



The Master Boot Record, or MBR, is a small program that runs each time your computer starts up. Sometimes, this program malfunctions and you may need to remove it. Often the best approach is to format the hard disk to remove all remnants of the malfunctioning software. This will remove every software and partition so you will be able to reinstall everything from scratch.

1). Back up all data on your hard disk. You can transfer all files to a portable hard drive. Plug it in and drag all items you want to save into the portable hard drive's folder on the desktop.

2). Restart the computer. Press F12 to access the BIOS setup menu. Change the startup disk so that the computer will start up from a CD next time you start the computer. Look for the "Boot Disk" menu options, hit enter and choose "CD-ROM."

Animal Trough in Farmville



Animal Trough is a place where we feed animals in Farmville. Once we fill the trough with animal feed it attracts one of a number of typically available animals which you can be adopted for our farm.Once an animal is adopted, Feed Trough will need to get filled up again in order to attract another farm animal.

Animal trough can be purchased from market in Buildings under Animals Tab. 

 
 If you do not choose to place it when we get a gift from a friend or just as an update we can later go into Gift Box for placement later. Once we click on the Animal Trough and choose “Look Inside” we’ll see this window.

Reset the Waste Ink on a Canon Printer


The Canon ink counter tool estimates your remaining ink usage, and should be reset each time you replace your ink cartridge. This tells your Canon software that the ink cartridges are full, so it can properly estimate the remaining ink levels. Since the ink counter is an estimate, you may have some ink remaining even when the ink counter says your cartridge is full. By resetting the ink cartridge, you can avoid wasted ink, and squeeze every last drop out of the expensive ink cartridge.

1). Click the Windows 7 "Start" button, and type "devices and printers."

2). Click "Devices and Printers" in the search results to open the "Devices and Printers" window.

3). Right-click your Canon printer in the section labeled "Printers and Faxes," and select "Printer preferences."

Monday, April 25, 2011

Dispose of Printer Toner


 If you own a laser printer or copier, you will have to change the toner cartridge. But you cannot simply throw the old toner cartridge away with the trash. Those toner cartridges contain materials that are potentially hazardous, so keeping them out of landfills is important. Fortunately there are recycling programs in place to help you get rid of old toner cartridges without threatening the environment.

1). Remove the new toner cartridge from the box and look for a return shipping label. Many toner cartridges come with prepaid shipping labels customers can use to recycle their old toners.

2). Log onto the website of the printer manufacturer if there is no return label in the box. Search for the word "Recycling" on the website to find information about any toner recycling programs the printer manufacturer has in place.

Comparison of Cartridge Toners


Though toner costs more in the short term than an ink cartridge, in the long run money is saved. Compared to ink, toner is cheaper. But how do you determine the best toner for you? There are a few different things to keep in mind when comparing toners that will help you make the best decision when it comes time to open your wallet and buy.

1). Find out if your printer uses liquid, powdered or laser toner. Only compare toners from the kind that your computer uses. Comparing liquid and laser toner will get you nowhere, because they are for completely different uses and different printers.

2). Identify the cartridge yield, sometimes called the cartridge life. This number is sometimes printed on the toner packaging, but if not you can find it on the manufacturer's website. This will tell you how many pages you can expect to print from one toner cartridge. Compare this number across all the toners that you are thinking of buying.

Sunday, April 24, 2011

Format a Protected Disk


 
If you have forgotten your password to the disk and want to wipe it clean, work around the protection by using your Windows registry. The Windows registry logs all of the protection on disks and can also turn them off for editing and formatting.

1). Restart your computer and hold down the "F8" key. This will take you into Windows "Advanced Boot Options." Use the arrow keys on your keyboard to navigate to the "Safe Mode" option and then press the "Enter" button.

2). Click the "Start" button and then click the "Search" bar on the menu. Type "regedit" into the "Search" box and press the "Enter" button.

3). Follow this path in the registry from the icons on the left side of the window that appears: "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\StorageDevicePolicies."

Tuesday, April 12, 2011

Problems Installing GeForce 8400



GeForce 8400 is a high-performance video card used for video games and multi-media applications. It features 512MB of video memory, full DirectX 10 support, SLI technology and dual DVI outputs. The GeForce 8400 is also compatible with Windows, Macintosh and Linux operating systems. However, when installing the GeForce 8400, like any video card, problems can occur with compatibility and other factors.

Motherboard Incompatibility
Video cards come with a few different slot types. This includes PCI, AGP and PCI-Express. The GeForce 8400 uses PCI-Express technology specifically. If your motherboard is outdated, or does not contain a PCI-Express slot, the GeForce 8400 will not work. So before purchasing a video card it is important to refer to your motherboard specifications to check for compatibility.

Monday, April 11, 2011

Diagnose a Graphics Card Problem


Blank screens, display monitor flickering, squealing noises, incorrect text and monitor display sizes are all signs that require your graphics card settings to be adjusted. Thankfully, you can resolve many of these issues without having to dismantle your computer. By checking the connections and altering the refresh rate and resolution settings, your graphics card diagnosis will lead you to a fast and clearer visual repair.

1). Check the connections from the graphics card and video cable and verify that each one is securely attached if a blank or black screen is displayed. If your computer monitor does not work correctly, go to the next step.

2). Replace cables that have bent or damaged pins in the connector. If your computer monitor does not work correctly, go to the next step.

3). Change your display resolution if the text or monitor display size is incorrect. Click the "Start" button, click the "Control Panel" and then click "Adjust screen resolution" under "Appearance and Personalization."

4). Click the "Resolution" drop-down list and then move the slider to the "Recommended" resolution size for your monitor. Click "Apply." If your computer monitor does not work correctly, go to the next step.

Enable ATI Theater Mode


ATI Theater Mode is especially useful if your personal computer contains video files that cannot be played on your DVD player. For example, you may have home movies on your personal computer and no way to watch them on your TV. Theater mode is an effective way to send videos to your TV with minimal hassle.

1). Right-click the desktop. A context menu will appear.

2). Select "Catalyst Control Center" from the context menu. Catalyst Control Center will load.

3). Select the "Graphics Settings" tab.

Saturday, April 9, 2011

Ways to Save Printer Ink


When you purchase a printer for your computer, the price you pay for the device itself is only a fraction of the cost you incur over the life of the device. From time to time, you must replace your printer's ink cartridges. Lessen your ink consumption by developing wise printing habits.

Print Quality
Most printers have the option of printing documents and pictures at various quality levels -- and the lower the print quality, the less ink the printer uses. Except for "final draft" items you need to turn in to a supervisor or instructor at work or school, get into the habit of printing documents at low quality to save on ink.

Page Count
When you print a document, your computer will prompt you to enter the pages of the document you want to print. Look through your document before printing to verify that you need all its pages -- and if you don't, adjust the page range to reflect what you do need. If you print a receipt from a website, for example, the entire document may take up four pages, even though your receipt itself appears entirely within the second page.

Print Black & White on Canon MX850


 Multi-function and all-in-one printers such as the Canon Pixma MX850 have a lot of settings and capabilities. Printing in black and white, or grayscale, is easy to switch to depending on each print. Printing in grayscale can be useful if you want to print out draft copies of a document or photograph, or alternatively if you want to have black and white prints for aesthetic reasons.

1). Click "Start" then your username.

2). Browse through your computer until you reach the file you want to print.

3). Double-click it and then click "File" followed by "Print."

Friday, April 8, 2011

Replace Ink in Canon MP970


The Canon PIXMA MP970 Photo-All-in-One printer uses seven liquid ink tanks to produce photos and paper printouts. The printer will display a message on its LCD screen when an ink tank runs out of ink. Low ink levels in one or more ink tanks will cause diminished print quality, such as streaks or lines in the printouts. Replacing depleted ink tanks will correct these problems.

1). Push lightly on the center of the printer's output tray to fold it down. Press the printer's "Power" button to turn on the printer before continuing.

2). Lift up on the printer's top cover until the hinges prevent you from raising it further. Wait for the ink tanks to stop moving inside the printer before proceeding.

3). Press on the tab in front of the ink tank you wish to replace, and lift the ink tank up and out of the printer. Dispose of the old ink tank, making sure to not touch the bottom of the tank to avoid getting ink on you.

Clean the Rollers on a Phaser 6120



The Xerox Phaser 6120 uses laser printing technology to transfer digital images and text to paper, creating hard copies. In order to create the printouts, the Phaser 6120 uses a series of rollers to move the paper through the inside of the machine. The toner powder, or the ink used in the Phaser 6120, as well as paper dust can eventually build up on the rollers with continued use of the printer. You may notice more paper jams or even black or grey streaks on the paper as a result. Cleaning the rollers takes a few moments of your time.

1). Unplug the printer's power cord from the back of the printer, remove any paper left in the printer's output tray and fold the tray's extension. Pull up on the handle located at the front of the Phaser 6120's top cover, swinging the cover open and toward the rear of the machine.

2). Grab the handle on the top of the toner cartridge and pull up until the cartridge comes free from the printer. Place the toner cartridge on a scrap piece of paper in an area without direct sunlight.

3). Wipe the feed rollers clean using a dry and clean microfiber cloth, making sure to turn the wheels so you clean the entire surface. Reinsert the toner cartridge in the same direction it sat inside the printer before, then lower the top cover so that it snaps closed.

Thursday, April 7, 2011

How to Reset Getting Low Ink Messages for Refilling Dell Ink Cartridges


Dell computer printers use a variety of types and sizes of ink cartridges. These cartridges are designed to be used once and then replaced. Refilling the cartridges is a more cost-effective alternative to buying new cartridges. Most Dell printers track usage of each cartridge to determine when the ink is getting low. Resetting the low ink warning prevents the printer from displaying low ink messages.

1). Click the Windows "Start" button. Select the "Programs" menu.

2). Click "Dell Printers." Click your Dell printer model within the Printers menu.

3). Click the "Maintain/Troubleshoot" tab. Select the "Ink Level" option. Click the "Advanced" button. Select the "More Options" option.

Burn My Cassettes to CD?


Many older listeners still have storage-boxes full of the magnetic tapes. If you have a collection of cassette tapes you would like to digitize and protect, you can import the audio into your PC. Both Windows Vista and Windows 7 include all of the software you need to record songs from your cassette tapes and store them as digital audio files on your computer.

1). Connect the audio cable to the "line out" port on the cassette deck or recorder. Connect the 3.5-mm end of the cable to the "Audio In" or "Line In" port on the computer. In many cases, the "Line In" port has a small blue ring around it that differentiates it from other audio ports on the computer.

2). Power on the cassette deck and insert the tape you want to record. Fast-forward or rewind the tape to the song you want to transfer the PC. Leave a second or two of silence before the music begins. Press the "Play" button and then immediately push the "Pause" button to stop play back.

Wednesday, April 6, 2011

How to Write a Dual Layer DVD




A dual layer DVD features two thin layers that can hold double the data, video clips or other media that you may store on a DVD disc. This saves time, space and allows you to have fewer discs for the same amount of space. Burning these discs is a relatively easy process that only requires a few extra steps than a standard DVD.

1). Download and purchase Nero (see link in References). Nero offers easy-to-use programs for every type of CD/DVD disc. Click the "Photo/Video" icon beneath the program's main menu. Nero Burning Rom will load and present you with a new project.

2). Look in the bottom right-hand corner of the project for a drop-down menu. The menu should say "DVD." Click the drop-down menu, and select "DVD-9." This is the technical name for a double-layered DVD.

3). Drag and drop your media files into the project. The program will automatically analyze them and show how much space they take up on the DVD. When the blue progress bar has turned red, the DVD is full and has too much content on it.
Click "Next" to proceed to the menu editing process. Create customized menus for the DVD including your own background, font and preview screens. Press "Next" when you have finished editing the menu.
Watch a preview of the DVD menu and press "Next" when you have tested all the functions. The final screen will come up with the burning options.
Insert the double-layered DVD disc and press the "Burn" icon to let the burning process begin.

DVD Data Disc
1). Click the "Data" icon in the main Nero menu. Click "Make a Data DVD." Wait for the menu to load within the program.

2). Click the drop-down menu in the lower corner and select "DVD-9" option. This option may appear in the left-hand corner for some versions of the Nero program. Press "Next" when you have made all the selections.

Difference in DVD-R & DVD-RAM Discs


DVD-R and DVD-RAM are different formats of writable DVDs, discs you can use to store video, photos or data. While they're similar in their basic purpose, the two formats differ greatly in most aspects. Understanding these differences can help you determine which format is better suited for your needs.

Reuse and Longevity
One of the biggest differences between the DVD-R and DVD-RAM formats is that data stored on a DVD-RAM disc can be removed or written over, while a DVD-R disc can be burned only once. The similar format, DVD-RW, also features rerecording capabilities, but even DVD-RWs aren't as useful. DVD-RW discs can be rewritten only about 1,000 times, while DVD-RAM discs can see 100,000 rewrites. When it comes to overall longevity though, manufacturers estimate DVD-R discs have lifespans ranging from 30 to 100 years, while the DVD-RAM disc's lifespan is estimated to be a maximum of 30 years.

How to Unlock On Screen Display (OSD)


 The On-Screen Display (OSD) on your ViewSonic VA912b computer monitor has a feature that allows you to lock it. This gives users the security they need when leaving the monitor unattended. When the screen is locked, nobody will be able to see the screen unless they have the passcode. You don't have to take your screen to a ViewSonic retailer to get the screen unlocked. You can do it yourself with little hassle.

1). Press down and hold the "1" button on the front panel of the ViewSonic monitor.

2). Press down and hold the "Up" button on the front panel of the monitor.

3). Hold both of these keys down for around 10 seconds until you see "OSD Unlocked" on the screen.

Tuesday, April 5, 2011

Turn Off MagicColor



This feature collectively is known as "MagicTune," allow Samsung customers to optimize their monitors because Samsung monitors come with this feature. The "MagicZone" feature has settings that enhance the color and sharpness of multimedia content. "MagicColor" improves digital graphics by helping the monitor produce natural looking color. This feature has a demo mode. If enabled, the monitor demonstrates the feature by displaying before and after images showing how the screen looks with and without "MagicColor" enabled. You can turn the demo feature off by accessing the monitor's "Menu" panel.

1). Find the set of buttons on the monitor's front panel. These are in the bottom right corner of the panel.

2). Click the button labeled "Menu" to display the "Menu" screen. This menu contains several rows of items. Look for the "Magic" item. This item usually has the shape of a magic wand.

Connect LCD TV to Computer



Flat-screen LCD televisions are designed to accept numerous inputs. Depending on the model of the LCD television, it may accept the older analog RCA video connections, analog component video, analog VGA, digital DVI and digital HDMI. Most LCD TVs accept multiple HDMI connections. Computers typically have analog VGA connectors, and quite often, they have digital DVI connectors. Increasingly, computers are coming equipped with digital HDMI connectors that carry video and sound over a single cable, which is perfect for connecting to an LCD TV.

1). Examine the back of your computer and determine which outputs are available. Choices in order of preference are HDMI, DVI and VGA.

2). Determine which inputs are available on the LCD TV.

What Does a Uninterruptible Power Supply Do




An uninterruptible power supplies (UPS) serves as essential electrical backup to ensure that critical equipment stays running during power failures. When power is lost, the UPS automatically switches to its battery. Any electrical or electronic devices plugged into the UPS continue to work without a problem.

Voltage Monitor
Electronic circuits in the UPS continually monitor the power line's voltage. Normally, the alternating current (AC) power runs at 110 to 120 volts. If the voltage sags more than a few percent, for even a few thousandths of a second, the UPS switches over to battery power. The switching action is so fast that even sensitive equipment never registers a problem. When the AC line voltage returns to normal, the UPS switches the battery off, providing power straight from the outlet. The UPS uses the battery only when needed.

Monday, April 4, 2011

Enable Power Management in the BIOS


 
The BIOS controls the basic functioning of the various input/output devices connected or integrated within the system. Without the BIOS, the computer's main processor would not have the ability to communicate with or operate other pertinent components of the system. Enabling and adjusting the power management settings within the BIOS reduces power consumption and gives you control regarding how the computer operates when not in use.

1). Turn the computer on and enter the BIOS menu. Depending upon your particular computer or BIOS version, you have to press a certain key to gain access to the BIOS menu. Pay close attention to the display screen during the startup process, to determine the correct key. Alternately, consult your user manual or see Resources for a link of key combinations by manufacturer.

2). Enter the system password, if applicable.

Upgrade Power Supplies in Computers


 
Power supplies are needed because your computer needs different voltages than what comes straight from the outlet. Disconnecting and replacing a power supply is simple because it's just piece of hardware.

1). Shut down your computer and unplug the cable from the wall and the back of your computer. Open the computer case. This may involve unscrewing the access door from the back of the computer, pushing a lever or just sliding the door off.

2). Unplug the power connectors from all of the drives and the motherboard. The connectors can be removed by either pulling them straight out or by pushing a release button first and then pulling the connector out. Some motherboards have two sockets where the power supply is plugged in.

Saturday, April 2, 2011

Membrane Keypads Tutorial



 Unlike traditional keypads with moving keys, membrane keypads are pressure sensitive, with key outlines or symbols printed on a flat waterproof surface. A wide variety of products employ membrane keypads, such as remote controls and microwave ovens, printers and switches.

Industrial Uses
Membrane keypads are a part of many consumer products, but you can also find them in industries where hygiene is important or where systems are exposed to extreme environments. For example, medical technology, the automotive industry and the disposal and recycling industry use membrane keypads.

Friday, April 1, 2011

Replace LED Bulb in a Compaq Presario F500


The LED screen in your Compaq Presario laptop is powered by a bulb that is located directly behind the screen. If your screen is dark or is generally not functioning properly, it is likely the result of a blown backlight bulb. The good news is that you don't need to pay a computer tech to fix the problem for you, as you can replace the backlight yourself.

1). Power off your F500 and unplug the AC adapter power cable.

2). Slide the rectangular battery out of its compartment located on the underside of the computer.

3). Open the display screen and use your Phillips screwdriver to remove all screws on the sides and corners of the plastic frame that surrounds the display screen.

Replace Batteries in a 1500 Rack Mount


 A 1500 Rack mount power supplies contain batteries that provide a continuous power source to the computer systems connected to them (most likely a server bank), so that should a building's power fail the computers will still be able to function. If the batteries in the 1500 fail, the power supply won't work, leaving the computers vulnerable. Replacing the batteries in a 1500 Rack mount takes about 30 minutes.

1). Look on the front of the 1500 mounted in the rack and locate the battery pack cover, on the right side of the assembly. Using a screwdriver, take off the screws holding the cover to the assembly. Place the cover and the screws in a safe place.

Benefits of a Glossy Laptop Screen



While traditional desktop computers afford users the option of installing a wide variety of monitors, your laptop computer displays its graphical user interface on its built-in screen, one whose size corresponds to that of the computer itself. Among the options you have when you purchase a laptop is the choice between a glossy or matte screen.

Glossy vs Matte Screens
When you order prints of photographs, you have the option to choose between glossy or matte finishing; in other words, photos that either have or lack sheen. Similarly, laptop screens can be either shiny, like the body of a car, or matte, like a piece of paper. If you're unsure as to whether a given laptop screen is glossy or matte, turn the computer off and look into the screen.

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