Author Topic: Computer Terms Beginning with "T"  (Read 2923 times)

Offline MysteRy

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Re: Computer Terms Beginning with "T"
« Reply #30 on: April 13, 2014, 10:07:47 AM »
Token

Example: "Computers on a token-ring network can only send data when they have the token."

A token is a group of bits that are transferred between computers on a token-ring network. Whichever computer has the token can send data to the other systems on the network. This ensures that only one computer can send data at a time.

A token may also refer to a network security card, also known as a hard token.

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Re: Computer Terms Beginning with "T"
« Reply #31 on: April 13, 2014, 10:09:07 AM »
Toolbar

A toolbar is a set of icons or buttons that are part of a software program's interface or an open window. When it is part of a program's interface, the toolbar typically sits directly under the menu bar. For example, Adobe Photoshop includes a toolbar that allows you to adjust settings for each selected tool. If the paintbrush is selected, the toolbar will provide options to change the brush size, opacity, and flow. Microsoft Word has a toolbar with icons that allow you to open, save, and print documents, as well as change the font, text size, and style of the text. Like many programs, the Word toolbar can be customized by adding or deleting options. It can even be moved to different parts of the screen.

The toolbar can also reside within an open window. For example, Web browsers, such as Internet Explorer, include a toolbar in each open window. These toolbars have items such as Back and Forward buttons, a Home button, and an address field. Some browsers allow you to customize the items in toolbar by right-clicking within the toolbar and choosing "Customize..." or selecting "Customize Toolbar" from the browser preferences. Open windows on the desktop may have toolbars as well. For example, in Mac OS X, each window has Back and Forward buttons, View Options, a Get Info button, and a New Folder button. You can customize the Mac OS X window toolbars as well.

Toolbars serve as an always-available, easy-to-use interface for performing common functions. So if you haven't made use of your programs' toolbar options or customization features in the past, now is a good time to start!

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Re: Computer Terms Beginning with "T"
« Reply #32 on: April 13, 2014, 10:10:13 AM »
Tooltip

As computer users, we have become accustomed to icons that represent files, folders, programs, and other objects on the computer. Many software programs also use icons to represent tools, which are often found in the program's toolbar.

While these icons can save screen space and make the program's interface more attractive, it can sometimes be difficult to tell what all the tool icons mean. While some tool icons are obvious (such as a printer icon to print and a scissors icon to cut a text selection), others are a bit more ambiguous. For this reason, programs often include tooltips that explain what each tool icon represents.

Tooltips are displayed when you roll over an icon with the cursor. It may take a second or two to display the tooltip, but when it does appear, it usually is a small box with a yellow background explaining what the icon represents. For example, in Microsoft Word, when you roll over the disk icon, the tooltip "Save" appears. This means clicking on the disk icon will save your document. In Photoshop, when you roll over the wand icon, the text "Magic Wand Tool (W)" appears. This indicates that clicking the the wand icon or pressing the W key will activate the magic wand selection tool.

Not all programs incorporate tooltips, but most modern programs include them as part of a user-friendly interface. Operating systems also support them in different ways. For example, Mac OS X will show the full text of a long filename when you place the cursor over the filename. Windows includes tooltips for the systray icons and also tells you information about each file and folder you place the cursor over. If you drag your cursor over different icons on your computer, you may find tooltips you never knew were there!

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Re: Computer Terms Beginning with "T"
« Reply #33 on: April 13, 2014, 10:11:34 AM »
Torrent

A torrent is a file sent via the BitTorrent protocol. It can be just about any type of file, such as a movie, song, game, or application. During the transmission, the file is incomplete and therefore is referred to as a torrent. Torrent downloads that have been paused or stopped cannot be opened as regular files, since they do not contain all the necessary data. However, they can often be resumed using a BitTorrent client, as long as the file is available from another server.

Torrents are different from regular downloads in that they are usually downloaded from more than one server at a time. The BitTorrent protocol uses multiple computers to transfer a single file, thereby reducing the bandwidth required by each server. When a torrent download is started, the BitTorrent system locates multiple computers with the file and downloads different parts of the file from each computer. Likewise, when sending a torrent, the server may send the file to multiple computers before it reaches the recipient. The result is a lower average bandwidth usage, which speeds up file transfers.

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Re: Computer Terms Beginning with "T"
« Reply #34 on: April 13, 2014, 10:12:33 AM »
Toslink

Toslink is a type of digital audio connection developed by Toshiba Corporation. It uses a fiber optic cable to transmit an audio signal in the form of pulses of light. A single Toslink cable can be used to carry a mono, stereo, or even a surround audio signal.

Toslink is similar to the Sony/Philips Digital Interfance, known as S/PDIF. It provides the same digital audio data as S/PDIF, but uses a light beam instead of an electrical current to send the data. Because the Toslink cable does not use electrical currents, the connection is immune to electrical or magnetic interference. Toslink connections are most commonly found on high-end home theater receivers, MiniDisc players, and professional audio equipment, as well as Power Mac G5 computers.

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Re: Computer Terms Beginning with "T"
« Reply #35 on: April 13, 2014, 10:13:27 AM »
Traceroute

When computers communicate over the Internet, there are often many connections made along the way. This is because the Internet is made up of a network of networks, and two different computers may be on two separate networks in different parts of the world. Therefore, if a computer is to communicate with another system on the Internet, it must send data through a series of small networks, eventually getting to the Internet backbone, and then again traveling to a smaller network where the destination computer resides.

These individual network connections, called "hops," typically go unnoticed by the average user. After all, why bother tracking all the various connections when you are only interested in communicating with the destination computer? However, if a connection cannot be made or is taking a unusually long time, tracing the path of connections along the way can prove to be helpful. This is exactly what the traceroute command does.

Traceroute is a TCP/IP utility that allows a user to trace a network connection from one location to another, recording every hop along the way. The command can be run from a Unix or DOS command line by typing tracert [domain name], where [domain name] is either the domain name or the IP address of the system you are trying to reach. A traceroute can also be done using various networking utilities, such as Apple's Network Utility for Mac OS X.

When a traceroute is run, it returns a list of network hops and displays the host name and IP address of each connection. It also returns the amount of time it took for each connection to take place (usually in milliseconds). This shows if there were any delays in establishing the connection. Therefore, if a network connection is slow or unresponsive, a traceroute can often explain why the problem exists and also show the location of the problem.

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Re: Computer Terms Beginning with "T"
« Reply #36 on: April 13, 2014, 10:14:51 AM »
Trackback

Example: "The blog entry currently has five trackbacks that link to it."

Trackback is a protocol for notifying websites that other websites have linked to it. When a trackback link is added to a Web page, the linked website is notified that the link has been added. However, both websites must support the trackback protocol in order for the system to work. For this reason, trackback is most commonly used by blogging websites to share links and responses to blog entries.

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Re: Computer Terms Beginning with "T"
« Reply #37 on: April 13, 2014, 10:15:28 AM »
Trackball

Example: "Some people prefer trackballs over mice since they feel trackballs offers more accuracy."

A trackball is an input device that has a ball which is held in a socket and can be rolled in any direction. Most trackballs perform the same functions as a mouse and are used primarily to control the cursor on a computer screen. However, unlike a mouse, a trackball device remains stationary when the user move the ball. This makes trackballs ideal for areas with limited space.

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Re: Computer Terms Beginning with "T"
« Reply #38 on: April 13, 2014, 10:32:37 AM »
Trash

Example: "When you want to delete a file on a Macintosh, drag it to the Trash."

The Trash is used by Macintosh computers to store deleted items. It serves as a safety net, which provides an extra step before items are permanently deleted from the computer. Items can be moved to the Trash by dragging them to the Trash icon in the Dock or by selecting them and pressing Command-Delete.

You can view the items in the Trash by clicking the Trash icon. If you wish to save any of the items, you can drag them out of the Trash folder. If you are sure you no longer need the items in the Trash, you can select "Empty Trash..." from the Finder menu. This will permanently delete all the items stored in the Trash and will free up the disk space the items had been using.

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Re: Computer Terms Beginning with "T"
« Reply #39 on: April 13, 2014, 10:36:40 AM »
Trinitron

Trinitron is arguably the best consumer CRT (Cathode Ray Tube) technology available. The technology was developed by Sony Corporation, who owns complete rights to it. The Trinitron design has helped the company lead the market in the manufacturing of TVs and monitors for many years. The difference between a Trinitron tube and most other tubes is that the Trinitron uses an aperture grille instead of a shadow mask for creating the image on the screen.

An aperature grille consists of wires stretched vertically down the screen (allowing for a vertically flat screen). A shadow mask is basically a metal plate with holes in it, where light can pass through. Because Trinitron monitors are vertically flat, they have less image distortion and less glare than most other monitors. If you look very closey at a Trinitron screen, you should see one or two very thin dark horizontal lines that span the width of the screen. These lines are small wires that support the aperture grille.

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Re: Computer Terms Beginning with "T"
« Reply #40 on: April 13, 2014, 10:38:05 AM »
Trojan Horse

In Greek mythology, there is a story about the Trojan War. This war lasted many years, as the Greeks could not penetrate the heavily barricaded city of Troy. So one day, a few of the Greek soldiers brought the people of Troy a large wooden horse, which they accepted as a peace offering. The horse was moved inside the city walls, where it sat until the night. After the people of the city had fallen asleep, Greek soldiers jumped out of the wooden horse, opened the gates to let their fellow soldiers in, and took over the city.

So what is the moral of this story? Mainly, beware of Trojan horses. But how does that relate to computers? That's a good question. In the computing world, Trojan horses are more than just a myth. They really exist and can cause damage to your computer. Trojan horses are software programs that masquerade as regular programs, such as games, disk utilities, and even antivirus programs. But if they are run, these programs can do malicious things to your computer.

For example, a Trojan horse might appear to be a computer game, but once you double-click it, the program starts writing over certain parts of your hard drive, corrupting your data. While this is certainly something you want to avoid, it is good to know that these malicious programs are only dangerous if they are given a chance to run. Also, most antivirus programs can catch Trojan horses when scanning for viruses. Unlike viruses, however, Trojan horses don't replicate themselves. Though it is possible for a Trojan horse to be attached to a virus file that spreads to multiple computers.

So as a general rule, don't open a program unless you know it is legitimate. This applies especially to e-mail attachments that are executable files. Even if you are pretty sure the attachment is OK, it is still a good idea to run it through your virus scan program (with the latest virus definitions) just to be safe. Remember what happened to the people of Troy -- don't let a Trojan horse catch you off guard.

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Re: Computer Terms Beginning with "T"
« Reply #41 on: April 13, 2014, 10:39:28 AM »
Troll

Example: "I wish trolls would stop posting off-topic comments in this thread."

In Internet terminology, a troll is a person who posts offensive or off-topic comments online. These comments are often made to incite arguments or emotional responses from other users. Trolling, as it is called, may take place in Web forums, in blog comment sections, and in social networking websites.

Usernames provide trolls with hidden identities, and therefore a sense of anonymity online. Therefore, trolls often type things they would not actually say in person. The anonymous nature of the Internet gives trolls the capacity to post offensive comments without being held responsible. Fortunately, webmasters can typically delete unwanted posts and remove the accounts of the trolls that invade Web forums and other online communities.

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Re: Computer Terms Beginning with "T"
« Reply #42 on: April 13, 2014, 10:40:15 AM »
Troubleshooting

Example: "Many product manuals include a list of troubleshooting steps near the back of the manual."

Troubleshooting is the process or identifying and fixing problems. Computer troubleshooting may involve hardware or software and can sometimes involve both at the same time. The basic process of troubleshooting is to check the most general possible problems first, and then gradually check for more specific problems. This provides a logical approach to problem solving and can apply to multiple types of products.

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Re: Computer Terms Beginning with "T"
« Reply #43 on: April 13, 2014, 10:53:29 AM »
Truncate

To truncate something is to shorten it, or cut part of it off. In computer science, the term is often used in reference to data types or variables, such as floating point numbers and strings.

For example, a function may truncate the decimal portion of a floating point number to make it an integer. If the number 3.875 is truncated, it becomes 3. Note that this is different than if the number had been rounded to the nearest integer, which would be 4. Strings may also be truncated, which can be useful if a string exceeds the maximum character limit for a certain application.

Several programming languages use the function trunc() to truncate a variable. PHP uses strlen() to truncate a string to a set limit of characters.

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Re: Computer Terms Beginning with "T"
« Reply #44 on: April 13, 2014, 11:03:23 AM »
TTL

Stands for "Time To Live." Pretty intense for a computer term, huh? It refers an aspect of the Internet Protocol. TTL is used when a "ping," or a request for a response, is sent to another computer, such as a server. The TTL represents the number of hops, or servers in different locations, the request can travel to before returning a failed attempt message.

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