Author Topic: Computer Terms Beginning with "T"  (Read 13631 times)

Offline MysteRy

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Computer Terms Beginning with "T"
« on: April 13, 2014, 07:16:35 AM »
Source : PC.net


T1

This is a data transfer system that transfers digital signals at 1.544 megabits per second (quite a bit faster than a 56K modem, which maxes out at around 0.056 Mbps). Most small to mid-sized colleges and business have T1 lines for their Internet connections. Because of the T1's large bandwidth, hundreds of people can be accessing the Internet from one T1 line. However, like all good things, too many people on one T1 line can cause dramatic decreases in data transfer speeds. For this reason, multiple T1s are often used.

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Re: Computer Terms Beginning with "T"
« Reply #1 on: April 13, 2014, 07:17:24 AM »
T3

What about T2, you ask? For some reason, there just is no such thing. (There was probably some legal dispute about it involving the name of a popular Arnold Schwarzenegger movie). If a T1 connection just isn't going to cut it for you, a T3 should do the trick. However, if you thought a T3 was 3 times faster than a T1 connection, you're slightly off. A T3 line actually 30 times faster, supporting data transfer rates of 44.736 megabits per second. What I wouldn't do to have one of those in my basement...

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Re: Computer Terms Beginning with "T"
« Reply #2 on: April 13, 2014, 07:18:08 AM »
Tablet

A tablet is a flat, portable computer with a touchscreen interface. Early tablets required a stylus or light pen, but most modern tablets allow you to perform actions by simply tapping or swiping the screen. Some tablets allow you to use either your finger or a stylus as an input device.

For several years, tablets had limited success. Then in 2007, the iPhone came along and popularized touchscreen devices. In 2010, Apple introduced the iPad, which brought tablets to the masses. Since then, other manufacturers have released several Android tablets and Microsoft has released their own "Surface" tablet.

While tablets appear similar to laptops, the software programs are different since they are typically designed for a touchscreen interface. Many tablet programs, called "apps," are more simplistic and lack the advanced functionality of their desktop counterparts. Additionally, most tablet software must be downloaded from an online store such as the App Store (iPad), the Windows Store (Surface), or Google Play (Android).

Important: The name "tablet" comes from the traditional definition of a tablet, which is a flat piece of stone or wood, typically used for inscribing words. To avoid ambiguity, tablets are often called tablet computers or tablet PCs.

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Re: Computer Terms Beginning with "T"
« Reply #3 on: April 13, 2014, 07:18:52 AM »
Tag

On clothes, tags usually indicate the brand, size of the garment, fabrics used, and the washing instructions. In Web pages, tags indicate what should be displayed on the screen when the page loads. Tags are the basic formatting tool used in HTML (hypertext markup language) and other markup languages, such as XML. For example, to create a table on a Web page, the <table> tag is used. The data that should be inside the table follows the <table> tag, and the table is closed with a </table> tag.

If you want something to show up in bold on a Web page, you would use the bold tag. For example, the line:

This site is the best website ever!

would show up as: This site is the best website ever!

Since there is often a need to format content within more general tags, the tags can be "nested," meaning one tag can enclose one or more other tags. For example:

<font="Times">This is the Times font, and this is in italics. Pretty exciting, huh?</font>

would should up as: This is the Times font, and this is in italics. Pretty exciting, huh?

Tags are a fundemental part of HTML and they are pretty simple to understand. If you want to build a Web site of your own, you can either create it from scratch (using a text editor and typing your own tags) or you can use a layout program like Macromedia Dreamweaver, which will generate the tags for you. Best of all, tags used in markup languages don't itch or chafe your neck.

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Re: Computer Terms Beginning with "T"
« Reply #4 on: April 13, 2014, 07:19:41 AM »
Tape Drive

This is a removable storage device mainly used for backing up data. It is similar to a Zip Drive, but instead of Zip disks, it uses small tapes. The drive acts like a tape recorder, reading data from the computer and writing it onto the tape. Since tape drives have to scan through lots of tape to read small amounts of scattered data, they are not practical for most storage purposes. That is why they are used almost exclusively for data backup. The benefit of tape drives is that they typically have large capacities for storing data, for a lower cost than hard drives similar in size. Also, multiple tapes can be used to make incremental backups (daily, weekly, monthly, etc.), which is much cheaper than using multiple hard drives.

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Re: Computer Terms Beginning with "T"
« Reply #5 on: April 13, 2014, 07:20:47 AM »
Target Disk Mode

Target disk mode is a way of booting a Macintosh computer so that it acts as an external hard drive on another computer. When a Mac is booted in target disk mode, the typical boot sequence is bypassed and the operating system is not loaded. Instead, the computer's internal and external hard drives are simply mounted on a connected computer. Target disk mode can be used to manually transfer files between two machines or to copy data from one computer to another using Apple's Migration Assistant.

In order for target disk mode (TDM) to work, two Macintosh computers must be attached to each other via a Firewire cable. One computer should be on and the computer designated for TDM should be off. To boot into target disk mode, hold the "T" key on the keyboard immediately after turning on or restarting the computer. After a few seconds, the screen should display the Firewire icon, which will move around the screen as long as the machine is in target disk mode. You should then see the hard drive(s) of the computer in TDM appear on the Desktop of the connected computer.

Booting a computer in target disk mode makes it easy to transfer files between two machines. Since the hard drives of the computer in TDM automatically mount on the other Mac's desktop, you can simply drag and drop files between them. Also, the computer in target disk mode is not seen as a boot disk, so you don't have to worry about file permissions. You can also run more comprehensive disk diagnostics and repairs. Just be sure not to remove or copy over any important system files on the TDM hard drive(s), since there are no safeguards to protect you from doing so.

Since the hard drives of the TDM machine are mounted on the connected computer, you should make sure to unmount or "eject" the hard drives before you turn off the computer. This can be done by selecting the hard drive on the desktop and choosing "Eject" from the File menu. Once the hard drives are ejected, you can safely turn off the TDM computer. When you turn on the computer again, it should boot normally (as long as you don't hold down the "T" key). Any files you copied to the computer's hard drives should appear in the directories you copied them to.

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Re: Computer Terms Beginning with "T"
« Reply #6 on: April 13, 2014, 07:21:29 AM »
Task Bar

The task bar was introduced with Windows 95 and has been part of every version of Windows since then. It is the bar that spans the bottom of the screen and contains the Start button on the left side and the systray on the right. The task bar also includes the current time on the far right side and can hold shortcuts to programs directly to the right of the Start button.

Most of the task bar, however, contains shortcuts to open windows. Whenever you open a program or window, it shows up in the task bar. So if you have Internet Explorer and Microsoft Word open, there will be at least two items in the middle area of the task bar. Since each window gets its own location in the task bar, if there are two Microsoft Word documents open and three Internet Explorer windows open, there will be a total of five items in the task bar. When you click on a window title in the task bar, that window will become active and show up in front of other open windows. You can also cycle through the task bar items by holding the Alt key and pressing Tab a few times.

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Re: Computer Terms Beginning with "T"
« Reply #7 on: April 13, 2014, 07:22:09 AM »
TCP/IP

Stands for "Transmission Control Protocol/Internet Protocol." These two protocols were developed in the early days of the Internet by the U.S. military. The purpose was to allow computers to communicate over long distance networks. The TCP part has to do with the verifying delivery of the packets. The IP part refers to the moving of data packets between nodes. TCP/IP has since then become the foundation of the Internet. Therefore, TCP/IP software is built into all major operating systems, such as Unix, Windows, and the Mac OS.

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Re: Computer Terms Beginning with "T"
« Reply #8 on: April 13, 2014, 07:22:53 AM »
Tebibyte

A tebibyte is a unit of data storage that equals 2 to the 40th power, or 1,099,511,627,776 bytes.

While a terabyte can be estimated as 10^12 or 1,000,000,000,000 bytes, a tebibyte is exactly 1,099,511,627,776 bytes. This is to avoid the ambiguity associated with the size of terabytes. A tebibyte is 1,024 gibibytes and precedes the pebibyte unit of measurement.

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Re: Computer Terms Beginning with "T"
« Reply #9 on: April 13, 2014, 07:23:49 AM »
Technology Services

Example: "The school library provides multiple technology services that allow students to access information."

Technology services are services that make use of modern technology. Examples include Internet service providers (ISPs), Web hosts, and technical support companies. Since many technology services are related to information technology, they are sometimes called "information technology services," or ITS. However, other services like graphic design, audio/video production, and scientific engineering also fall under the scope of technology services. Therefore, while technology services are often related to IT, they may be associated with other forms of technology as well.

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Re: Computer Terms Beginning with "T"
« Reply #10 on: April 13, 2014, 07:24:42 AM »
Telecommunications

Example: "Mobile phones are one of the most modern forms of telecommunications."

Telecommunications is the transmission of analog or digital signals over a long distance. This includes telephone calls, radio and television broadcasts, and data transfers over the Internet. Thanks to telecommunications, people can communicate instantly regardless of where they are located.

The term "telecom" may also refer to a telecommunications company.

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Re: Computer Terms Beginning with "T"
« Reply #11 on: April 13, 2014, 07:25:30 AM »
Telnet

This is a program that allows you log in to a Unix computer via a text-based interface. If you have an account on a Telnet server, you can access certain resources on the system such your home directory, your e-mail account, FTP files, etc. The downside of Telnet is that, to use it, you need to use Unix commands, which can be a challenge.

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Re: Computer Terms Beginning with "T"
« Reply #12 on: April 13, 2014, 07:30:38 AM »
Template

A template is a file that serves as a starting point for a new document. When you open a template, it is pre-formatted in some way. For example, you might use template in Microsoft Word that is formatted as a business letter. The template would likely have a space for your name and address in the upper left corner, an area for the recipient's address a little below that on the left site, an area for the message body below that, and a spot for your signature at the bottom.

When you save a file created with a template, you are usually prompted to save a copy of the file, so that you don't save over the template. Templates can either come with a program or be created by the user. Most major programs support templates, so if you find yourself creating similar documents over and over again, it might be a good idea to save one of them as a template. Then you won't have to format your documents each time you want to make a new one. Just open the template and start from there.

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Re: Computer Terms Beginning with "T"
« Reply #13 on: April 13, 2014, 07:31:19 AM »
Terabyte

A terabyte is 2 to the 40th power, or 1,099,511,627,776 bytes.

It can be estimated as 10 to the 12th power, or 1,000,000,000,000 bytes. A terabyte is 1,024 gigabytes and precedes the petabyte unit of measurement. While today's consumer hard drives are typically measured in gigabytes, Web servers and file servers may have several terabytes of space. A single 500GB hard drive can also be called a half-terabyte drive.

The prefix "tera" comes from the Greek word meaning "monster." So, if you have a 500GB hard drive, you could say you have half a monsterbyte of disk space. If nothing else, it sure sounds impressive.

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Re: Computer Terms Beginning with "T"
« Reply #14 on: April 13, 2014, 07:32:03 AM »
Teraflops

Example: "Supercomputing performance is often measured in teraflops."

Teraflops (also TFLOPS) is used to measure the performance of a computer's floating point unit (FPU). One teraflops equals 1,000 gigaflops, or 1,000,000,000,000 FLOPS. The term "teraflops" may be singular or plural because FLOPS is short for "Floating Point Operations Per Second." Teraflops is often used to measure scientific computing performance, since most scientific calculations use floating point operations.