Because fiber-optics are based entirely on beams of light, they are less susceptible to noise and interference than than other data-transfer mediums such as copper wires or telephone lines. However, the cables are fragile and are usually placed underground, which makes them difficult and expensive to install. Some fiber-optic cables are installed above ground, but if they break, they often need to be completely replaced, which is not cheap. While copper wires can be spliced and mended as many times as needed, it is much harder to fix glass fiber-optic cables.
Monday 10 October 2011
Fiber Optical Cable
Because fiber-optics are based entirely on beams of light, they are less susceptible to noise and interference than than other data-transfer mediums such as copper wires or telephone lines. However, the cables are fragile and are usually placed underground, which makes them difficult and expensive to install. Some fiber-optic cables are installed above ground, but if they break, they often need to be completely replaced, which is not cheap. While copper wires can be spliced and mended as many times as needed, it is much harder to fix glass fiber-optic cables.
Communication Devices
iPad (pronounced /ˈaɪpæd/ eye-pad) is a line of tablet computers designed, developed and marketed by Apple Inc. primarily as a platform for audio-visual media including books, periodicals, movies, music, games, and web content. Its size and weight fall between those of contemporary smartphones and laptop computers. The iPad runs the same operating system as the iPod Touch and iPhone—and can run its own applications as well as iPhone applications. Without modification, the iPad will only run programs approved by Apple and distributed via the Apple App Store (with the exception of programs that run inside the iPad's web browser).
Like iPhone and iPod Touch, the iPad is controlled by a multitouch display—a departure from most previous tablet computers, which used a pressure-triggered stylus—as well as a virtual onscreen keyboard in lieu of a physical keyboard. The iPad uses a wireless local area network ("Wi-Fi") connection to access local area networks and the Internet. Some models also have a 3G wireless network interface which can connect to HSPA or EV-DO data networks and on to the Internet. The device is managed and synced by iTunes running on a personal computer via USB cable.
Packet One Networks (P1) is a Malaysian converged telecommunications, broadband and Wimax service provider. The company was founded in 2002 and is a subsidiary of Green Packet Berhad. In March 2007, P1 was one of four companies awarded 2.3 GHz spectrum licenses by the Malaysian Government to deploy WiMAX services throughout Malaysia. In August 2008, P1 became the first company to launch commercial WiMAX services in Malaysia
Wi-Fi ( waɪfaɪ) is a mechanism for wirelessly connecting electronic devices. A device enabled with Wi-Fi, such as a personal computer, video game console, smartphone, or digital audio player, can connect to the Internet via a wireless network access point. An access point (or hotspot) has a range of about 20 meters (65 ft) indoors and a greater range outdoors. Multiple overlapping access points can cover large areas.
"Wi-Fi" is a trademark of the Wi-Fi Alliance and the brand name for products using the IEEE 802.11 family of standards. Wi-Fi is used by over 700 million people. There are over four million hotspots (places with Wi-Fi Internet connectivity) around the world, and about 800 million new Wi-Fi devices are sold every year. Wi-Fi products that complete Wi-Fi Alliance interoperability certification testing successfully may use the "Wi-Fi CERTIFIED" designation and trademark.
The Samsung Galaxy Tab is an Android-based tablet computer produced by Samsung introduced on 2 September 2010 at the IFA in Berlin.
The Galaxy Tab has a 7-inch (180 mm) TFT-LCD touchscreen, Wi-Fi capability, a 1.0 GHz ARM Cortex-A8 ("Hummingbird") processor, the Swype input system, a 3.2 MP rear-facing camera and a 1.3 MP front-facing camera for video calls. It runs the Android 2.2 (Froyo) operating system, and supports telephone functionality as speaker phone, via provided wired ear piece or Bluetooth earpieces (except models sold in the US). It can download videoconferencing apps such as Tango as alternative to telephone functionality.[
Sunday 9 October 2011
Internet Communication Tecnology
Knew if you that the lan ICTs are technologies offering new ways for communicating and exchanging information and knowledge. Information communication technologies is a term which is currently used to denote a wide range of services, applications, and technologies, using various types of equipment and software, often running over telecommunication network. The importance of ICTs is not the technology as such, but it’s enabling function in access to knowledge, information and communications, increasingly important elements in today’s economic and social interactions. ICT particularly the Internet are transforming all human activities dependent on Information, including rural development and in other areas. Internet communication networking sometimes is good for interacting with other people but some of internet social networks is not suitable for children because some of social network had things that children is not allow to see.
The examples of internet social networking is:
- -Myspace is a social networking service owned by Specific Media LLC and pop star Justin Timberlake. Myspace launched in August 2003 and is headquartered in Beverly Hills, California. In August 2011, Myspace had 33.1 million unique U.S. visitors. In July 2005, News Corporation acquired Myspace and its parent company Intermix Media for $580 million. From 2005 until early 2008, Myspace was the most visited social networking site in the world, and in June 2006 surpassed Google as the most visited website in the United States. In April 2008, Myspace was overtaken by Facebook in the number of unique worldwide visitors, and was surpassed in the number of unique U.S. visitors in May 2009.
-Facebook is a social networking service and Web site launched in February 2004, operated and privately owned by Facebook, Inc.[As of July 2011, Facebook has more than 800 million active users. Users may create a personal profile, add other users as friends, and exchange messages, including automatic notifications when they update their profile. Facebook users must register before using the site. Additionally, users may join common-interest user groups, organized by workplace, school or college, or other characteristics, and categorize their friends into lists, e.g. "People From Work", or "Really Good Friends". The name of the service stems from the colloquial name for the book given to students at the start of the academic year by university administrations in the United States to help students get to know each other. Facebook allows any users who declare themselves to be at least 13 years old to become registered users of the Web site.
Facebook was founded by Mark Zuckerberg with his college roommates and fellow computer science students Eduardo Saverin, Dustin Moskovitz and Chris Hughes. The Web site's membership was initially limited by the founders to Harvard students, but was expanded to other colleges in the Boston area, the Ivy League, and Stanford University. It gradually added support for students at various other universities before opening to high school students, and, finally, to anyone aged 13 and over. However, based on ConsumersReports.org on May 2011, there are 7.5 million children under 13 with accounts, violating the site's terms.
-Blogger is a blog-publishing service that allows private or multi-user blogs with time-stamped entries. It was created by Pyra Labs, which was bought by Google in 2003. Generally, the blogs are hosted by Google at a sub domain of blogspot.com. Up until May 1, 2010 Blogger allowed users to publish blogs on other hosts, via FTP. All such blogs had (or still have) to be moved to Google's own servers, with domains other than blogspot.com allowed via Custom URLs. In July of 2011 a news outlet announced that Google intends to change the name of the service from "Blogger" to "Google Blogs," as part of a larger plan to re-brand or retire all non-Google brands in its portfolio of products and services.
-Twitter is an online social networking and micro blogging service that enables its users to send and read text-based posts of up to 140 characters, informally known as "tweets".
Twitter was created in March 2006 by Jack Dorsey and launched that July. Twitter rapidly gained worldwide popularity, with 200 million users as of 2011, generating over 200 million tweets and handling over 1.6 billion search queries per day. It is sometimes described as the "SMS of the Internet."
Twitter Inc., the company that operates the service and associated website, is based in San Francisco, with additional servers and offices in San Antonio, Boston, and New York City.
-Formspring (formerly known by its full URL formspring.me) is a social website, launched in November 2009. The site allows its users to set up a profile page, follow other users and ask questions from other users. The questions and their given responses are then published on the user's profile page. It is operated by Formspring.me, Inc., a company headquartered in San Francisco.
-Tagged is a social networking site based in San Francisco, California, United States, founded in 2004 by Greg Tseng, Johann Schleier-Smith. Tagged allows members to browse the profiles of other members, play games,and share tags and virtual gifts. Tagged says it has 100 million members. As of 28 September 2011, Quantcast reports Tagged monthly unique users at 5.9 million U.S., and 18.6 million globally. Tagged has acquired the social and instant messaging client Digsby and the gaming application WeGame.
Tuesday 23 August 2011
MY NEW BLOGGER!!!
Just started my new blogger,it's quite hard to make this.It need all my information to complete this, even my phone number also they wanted..huuuuuuu...so tired...huhuhuhuhu...
Subscribe to:
Posts (Atom)