Global System for Mobiles is the primary technology used globally for 3G mobile networks, with about a 73 percent market share. GSM competes primarily with Code Division Multiple Access technology, which is the technology used by five of the seven largest carriers in the United States. While GSM provides compatibility, multitasking and speed advantages over CDMA on a 3G network, most carriers around the world are switching to the Long Term Evolution standard for their 4G networks....

With more people dropping land lines and going mobile with their phones, the need for one cell phone to be able to handle two lines is becoming more pressing. Multi-line land lines are common, so why not multi-line cell phones? A business person who has gone mobile doesn’t want to juggle two phones for personal and business calls. While multi-line cell phones do exist, their availability and use in the United States is limited....

Google syncs all of your activity across its many platforms into one detailed user profile that shows who you are, what you do and what you like. It then uses this information to improve its services, along with targeting its advertising to your preferences. While Google does track quite a bit of your Web usage, your YouTube viewing history is not publicly available. If you work on a shared computer or let others use your PC, clearing your viewing history may be a good way to protect your privacy....

Facebook is a great way of keeping in touch with friends and family all over the world, but can also be used to keep tabs on those you don’t know quite as well. If you are curious about who has been looking at your profile, or concerned that whenever you view the profiles of others they will receive a record of your visit, be aware that Facebook does not allow its users access to this information....

There are the proverbial two sides to the “comparing an eye to a camera” coin. One side is merely factual – the human eye is like this, and the camera is like that. The other side is more metaphysical – and more controversial. But whatever side you’re most interested in, the eye-camera coin is an interesting feature in the progressing knowledge of optics and bionics. Writer Bio

A cookie, in computer terms, is a small data file that stores information on your computer. When this information is used to record the movements your computer makes throughout one or more websites, it is called a tracking cookie, because it tracks your pathways from one page to another. The tracking cookie file takes up very little space on your computer because it uses only text, no images or other data-heavy sources....

Car theft is one of the most common property crimes in America. Losing your car can be emotionally difficult and financially draining, and some car location systems, especially GPS-based systems, are easily anticipated by thieves. Fortunately, there are several systems available that will track down a car without using GPS signals. With a little forethought, you can secure your car against theft and catch criminals before they can cause any damage to your vehicle....

Spreadsheets and word processors were two of the earliest computer programs, but they vary significantly in terms of their design and purpose. A spreadsheet application is geared towards number crunching and data analysis; a word processor is primarily concerned with text and how this text appears on the page. Writer Bio

Internet Explorer and Mozilla Firefox are both popular and free Web browsers, so the one you use is matter of preference. While some may assume that all browsers are the same, there are some very specific differences between these two browsers. Writer Bio

From semaphore flags to smoke signals, ticker tape to the telegraph, carrier pigeons to carrier radio waves, human history has countless examples of technologies developed to help people communicate. Listing all the different kinds of communications devices would be problematic — if not impossible — but a brief review will provide some idea of the range of communication devices. Writer Bio

A text message is a brief exchange of written words between mobile phones over cell phone networks. Just like phone calls, a text message allows people over the world to communicate. Text messages are now more advanced, where customers can send videos, pictures, songs and other types of content along with a written message. Writer Bio

Not all Dell laptop chargers will work on all Dell laptops, because the individual models vary in power source requirements. The chargers, while paired with compatible models, are designed to work with all laptops that use the same type of connection and require the same power output. For example, some Dell laptops may only require 35 Watts to operate, whereas others may need over 100W. A Dell charger may work with a laptop that it wasn’t intended to work with, but the difference in power output may damage the laptop....

The original Kindle devices offered basic display options so you could read e-books, periodicals and other documents, and successive versions of the Kindle have added many features in addition to these. You can now browse the Internet, check your email and listen to books. Enabling text-to-speech takes only a moment or two on Kindle models that have this feature.

The Galaxy Note range from Samsung includes “full-size” tablet computers and three smartphones which have screens larger than five inches in diameter. As the screens are so large, the smartphones (Galaxy Note, Galaxy Note II and Galaxy Note 3) are sometimes categorized as a hybrid of smartphone and tablet. In addition to the screen size, one of the main selling points of the phones is the inclusion of a stylus pen, known as an S Pen....

To use many of the iPad’s features, such as email, iCloud or maps, you need access to Wi-Fi or 3G connectivity. Additionally, Wi-Fi could be required to download large documents, including movies, multimedia and other extremely large files. It’s possible to use your iPad only at a coffee shop, library, restaurant or other location that provides Wi-Fi and not purchase a plan, but you need to consider whether or not it’s worth the inconvenience....

Setting up guest Wi-Fi allows you to provide an Internet connection to devices through your wireless network, but without allowing those devices access to sensitive network resources such as shared folders or printers. Guest Wi-Fi is a particularly useful security measure if you regularly have visitors use your network. You can set up guest Wi-Fi on your Verizon FiOS Internet connection, even though the routers provided by Verizon do not include this feature....

Voice-over-Internet Protocol, also known as VoIP or voice-over IP, is the data transmission protocol allowing telephone calls across Internet-connected devices. VoIP services enable you to connect your home phone to a VoIP device or to existing home wiring connected to a VoIP device. Voice-over IP requires an Internet connection, such as DSL, to transmit the voice data to the receiving party. Telephone calls placed utilizing voice-over IP transmission may or may not require the receiving party to have VoIP installed to receive the phone call, depending on the VoIP service....

A computer hacker is somebody skilled at manipulating computers. Generally, the term hacker is used to refer to a person who breaks into computer systems. Hackers may do this for material gain, to harm another person or as a prank. A hacker may also have more positive motivations – some hackers aim to expose security flaws before other, less scrupulous people can exploit them. Some businesses hire hackers for this purpose....

Compact and relatively inexpensive, the Mac Mini computer does not ship with a monitor. You can connect it to an Apple monitor, but Apple does not offer a lot of selection in its monitors and the prices are often higher than those of other manufacturers. Using the right adapter, you can connect the Mac Mini to any computer screen with a VGA port. While the Mac Mini ships with an HDMI-to-DVI adapter for connecting to a monitor’s DVI port, few brands besides Apple use DVI....

Updated August 24, 2017 Choosing How to Watch Netflix is available on dozens of devices, including computers, smart TVs, smart phones, tablets, game consoles, Blu-ray players and streaming players. If your device can connect to the internet, either with a wired connection or via Wi-Fi, chances are you can watch Netflix on it. If your computer or device has an Ethernet port, you can connect a Cat5e or Cat6 cable directly from your device to your modem or router so it has an active connection to your AT&T Internet service....