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Wednesday, December 30, 2009

New release Cell Phones information on 2010

There are many kind of High Tech Cell Phones will be released by many vendors to spoiling their costumers. All of the information you will can get in new release Cell Phones information on 2010. Hope these information can be one of your consideration to have a new ones.

Google Nexus One
The Nexus One supports UMTS 900 / 1700 / 2100 MHz network, this phone was cool before it was supported by T-mobile. I love google! I like everything they do, which they do it soo perfectly….It will be apparently be sold by Google for $529.99 unsubsidized. The Google Nexus One cell phone looks pretty cool. The Nexus One has a 3.7 inch WVGA display, a new UI with 3D elements, a 5MP camera and lots of Google services, but this phone doesn’t really bring anything new to the table besides the Snapdragon processor and being called the actualGoogle phone. Droid and Hero users aren’t missing out on anything at all. Android 2.0 is nice. More RAM, more ROM than my rooted G1. Better screen. better form factor.

Google Nexus One Specs

- Carrier: T-Mobile
- Available: January 2010
- Networks: GSM/EDGE 850, 900, 1800, 1900 MHz; UMTS 900 / 1700 / 2100 MHz
- Display: 3.7 inch WVGA AMOLED touchscreen display
- Camera: 5MP camera with autofocus, LED flash, geotagging and 2x digital zoom
- Operating system: Android 2.1
- Input: Touch Screen; 4 illuminated softkeys (Back, Menu, Home, Search)
- CPU: Qualcomm Snapdragon (QSD 8250) processor at 1GHz
- Memory: 512MB RAM, 512MB ROM, 4GB microSD in-box
- Memory card:
- Storage: supports cards up to 32GB)
- Connectivity: A-GPS, Wi-Fi, 3.5mm headset jack, Stereo Bluetooth 2.1 (A2DP, EDR), MicroUSB
- Misc: MP3, FM, RDS, Stereo
- Battery: 1400 mAh battery included
- Dimensions: 119 mm x 59.8 mm x 11.5 mm
- Weight: 130 grams

Motorola Motus cell phone

The Motorola Motus cell phone looks like a big flip phone, not a slider, the Motus will running Android 1.6 and has a 5 megapixel camera, a 3.1-inch with 480 x 320 pixels TFT touchscreen, Full QWERTY keyboard, WCDMA / HSDPA network, WLAN, GPS, a 3.5mm headphone jack and more features. that keyboard looks terrible, it is very Meh. I think the blurry pics are intentional to perhaps hide or disguise a few things. Most of the leaked shots are always blurry.

Motorola Motus cell phone Specifications:

- Carrier: Coming Soon
- Available: AT&T
- Networks: Quad-band GSM/GPRS/EDGE; Tri-band 7.2Mbps HSDPA (850, 1900, 2100MHz)
- Display: 3.1-inch capacitive 480×320 display
- Camera: 5 megapixel autofocus camera with LED flash
- Operating system: Android 1.6, MOTOBLUR interface
- Input:
- CPU: 528 MHz Qualcomm MSM7201A processor
- Memory: 256MB RAM
- Memory card: microSD slot
- Storage:
- Connectivity: Wi-Fi, aGPS, Bluetooth 2.0
- Misc:
- Media:
- Form factor:
- Battery: 1400mAh battery
- Talk Time:
- Standby Time:
- Dimensions:
- Weight: 133g
- Other:

Nokia 5330 Mobile TV Edition Cell Phone

Nokia today announced the Nokia 5330 Mobile TV Edition, an entertainment hub that combines mobile broadcast TV (DVB-H), social networking, music and gaming in one compact 3G device. With mobile broadcast TV consumption on the rise - by 2012 there will be over 300 million people worldwide watching TV on their mobile phones - this handset offers easy access to anyone wanting to enjoy an exceptional live, on-the-move TV experience. The Nokia 5330 Mobile TV Edition provides broadcast picture quality while the headset acts as an antenna for outstanding reception, so no blank screens or interference during those all important moments. Long battery life gives up to six hours of DVB-H usage; enough time to watch three football matches - or six episodes of a soap opera - before recharging. The Nokia 5330 Mobile TV Edition will retail for 155 Euros before taxes and subsidies.

Nokia 5330 Mobile TV Edition Cell Phone Specifications:

- Carrier: International
- Available: Q4 2009
- Networks: GSM GPRS/EGPRS multislot class 32; WCDMA 850/1900/2100,WCDMA 900/1700/2100, EGSM 850/900/1800/1900; WCDMA max download/upload 384 kbps
- Display: 2.4 inch QVGA (320 x 240 pixels) with up to 16 million colors
- Camera: 3.2 megapixel camera with 4x digital zoom and flash
- Operating system: Symbian Series 40
- Memory: up to 70 MB internal memory
- Memory card: up to 16GB microSD memory card
- Connectivity: Bluetooth wireless technology 2.1 with A2DP & AVRCP; FM stereo radio
- Misc: AAC, AAC+, AMR-NB, AMR-WB, eAAC+, M4A, MIDI Tones (poly 64), Mobile XMF, MP3, MP4, SP-MIDI, True tones, WAV, WMA 10, WMA 10 Pro, WMA 9
- Media: H.263, MPEG-4
- Form factor:
- Battery: 1000 mAh Lion, Nokia Battery BL-4U
- Talk Time: Up to 7,7 hours
- Standby Time: Up to 350 hours
- Dimensions: 101 x 48 x 14 mm (L x W x T)
- Weight: 113 g
- Other: DVB-H, HTML over TCP/IP, WAP 2.0, Flash Lite 3.0

Sony Ericsson XPERIA X10

The new Sony Ericsson XPERIA X10 cell phone has a capacitive screen. It does not support multi-touch functionality at launch, but is considered for the future. New Sony Ericsson Cell Phones – XPERIA X10’s UI is going to evolve and adapt over time, so I would think or at least hope that Sony Ericsson will change the kinks and minor technicalities in future releases. It looks very nice but that UI is not doing anything for me. It’s very boring and blue, it doesn’t excite me in the least. Even the Facebook status on cards idea is just different, not better…and possibly worse depending on how it looks with real life pictures and not the stock ones SE is using. Watched video again. I think it looks great! Don’t know what some are complaining about.

Sony Ericsson XPERIA X10 Specs

- Carrier: Q1 2009
- Available: selected markets
- Networks: UMTS HSPA 900/1700/2100; GSM GPRS/EDGE 850/900/1800/1900; UMTS HSPA 800/1900/2100; GSM GPRS/EDGE 850/900/1800/1900
- Display: 4.0 inches, 480 x 854 pixels (WVGA), 262,144 colour TFT touchscreen
- Camera: 8.1 megapixel camera with Auto focus
- Operating system: Google Android Donut, version 1.6
- Input: Touch screen
- CPU: 1GHz Qualcomm Snapdragon QSD8250
- Memory: Up to 1 GB
- Memory card: microSD
- Storage: 8 GB microSD card
- Connectivity: A-GPS, WiFi, Bluetooth, 3.5 mm audio jack, FM Radio
- Misc: MP3/AAC
- Media: Media player, PlayNow
- Dimensions: 119 x 63 x 13 mm
- Weight: 135 grams
- Colour: Sensuous Black; Luster White; Legal

Many Sources

Thursday, October 15, 2009

What is video conference ?

What is Video Conference ? This is a common question that we don't know about something that we want to know it. And this is a question that we want to know the answer is which related to a technology. " what is the Video Conference?", according to the mean of Wikipedia site, A videoconference (also known as a videoteleconference) is a set of interactive telecommunication technologies which allow two or more locations to interact via two-way video and audio transmissions simultaneously. It has also been called visual collaboration and is a type of groupware. It differs from videophone in that it is designed to serve a conference rather than individuals. Or, another definition from, Video conference is a Video monitors connected by telephone wires, satellite technology, or ground wires which allow individuals to meet "face-to-face" from almost anywhere in the world. A videoconference can also include graphics, video clips, and transmission of data or documents. So, there are many definition about video conference that now definetly uses by the people in the entire world as one of solution to communicate to other person or place to another one.

A video conference commonly uses for a long distance meeting or overseas in live channel. It uses from many work field and organizations especially in the government and the business sector. for an example in the business sector, Videoconferencing can enable individuals in faraway places to have meetings on short notice. Time and money that used to be spent in travelling can be used to have short meetings. Technology such as
VOIP can be used in conjunction with desktop videoconferencing to enable low-cost face-to-face business meetings without leaving the desk, especially for businesses with wide-spread offices. The technology is also used for telecommuting, in which employees work from home. Videoconferencing is now being introduced to online networking websites, in order to help businesses form profitable relationships quickly and efficiently without leaving their place of work.
Nowadays, the technology of videoconferencing has been implementing into mobile phone as a solution mobile communication. for the example, a videoconferencing with iPhone that was recently granted a gigantic patent covering everything that is the Apple
and a closer look reveals that serious video capabilities might be coming in the next iPhone. Apparently video recording is mentioned frequently throughout the entire document but a few images and sections explain a video conferencing capable phone. So, which one device that you want to use to communicate ? The answer is depent on your capability and telecommunication needs.

Sources : wikipedia,, crunchgear.

Sunday, March 29, 2009

Global Information Technology

What is Global IT?

The emerging sub-discipline of Global Information Technology (GIT) is also referred to within the Information Systems (IS) discipline as Global Information Technology Management, as International Information Systems, and as Global Management Information Systems.

GIT encompasses multiple levels of analysis:

  1. the nation(s), or international policy-making body.
  2. the firm(s), the MultiNational Enterprise (MNE) or the IT vendors
  3. the group(s) or team(s)
  4. the individual
  5. the technology overlay

Referent Disciplines: Clearly, these five levels of analysis look to numerous referent disciplines: Political Science, Economics, Law, Management, International Business, Human-computer interface, Cross-cultural studies, Sociology, Psychology, Telecommunications, Computer Science.

Sources :

Friday, February 27, 2009

notebook review : The new 17-inch MacBook Pro

notebook review : The new 17-inch MacBook Pro
Notebook review : The new 17-inch MacBook Pro. The World's Thinnest and Lightest 17 Inch Note book.

The battery in the new 17-inch MacBook Pro lasts up to 8 hours on a single charge and can be recharged up to 1000 times2 — compared with only 200 to 300 times for typical notebooks. To do this, Apple engineers custom-designed lithium-polymer cells to create the largest possible battery, then they went even further: They built the battery right into the computer, eliminating the space-consuming mechanisms and housings that standard removable batteries require. The result is a battery that’s 40 percent bigger than the previous generation and offers up to 8 hours of wireless productivity on a single charge — all in a notebook that’s less than an inch thin, weighs just 6.6 pounds,3 and remains the same price as the previous-generation model. But building a battery that lasts up to 8 hours is only part of the story. Giving it a lifespan of up to 1000 recharges required breakthroughs in battery technology. Apple electro-chemists developed advanced chemistry that maintains the battery’s charging capabilities longer than ever. And while most notebooks wear down their batteries by charging them at a constant rate, the 17-inch MacBook Pro takes a different approach. Using an Apple-developed technology called Adaptive Charging, a microchip on the battery constantly communicates with the computer to determine the optimal way to charge its cells, adjusting the current up and down depending on a variety of conditions. With the high-resolution LED-backlit widescreen display on the 17-inch MacBook Pro, you get desktop-quality color in an Apple notebook for the first time. The moment you open your MacBook Pro, you’re greeted instantly by full, corner-to-corner screen brightness. The 1920-by-1200-pixel resolution (133 pixels per inch) means you can view more palettes and windows or watch HD video in its native 1920-by-1080 resolution. Perfect whether you’re working in the studio or out in the field, the display offers a 60 percent greater color gamut than previous generations for richer, more vibrant colors and a 700:1 contrast ratio that makes whites brighter and blacks blacker.

Apple 17
The MacBook Pro reaches a new level of high-speed, high-end game-playing power. Not to mention pure performance for graphics-intensive applications like Aperture and Motion. Use the new NVIDIA GeForce 9400M integrated graphics processor for great everyday performance with up to 8 hours of battery life. Or switch to the discrete NVIDIA 9600M GT graphics processor for the fastest, smoothest, clearest graphics yet. Carved from a single block of aluminum, the new unibody enclosure is slim and streamlined, making this MacBook Pro the world’s thinnest and lightest 17-inch notebook — just 0.98 inch thin and 6.6 pounds. But it’s not just for looks. The rigid construction of the unibody also makes MacBook Pro more durable than ever. So you can throw it in your bag and pull it out at a photo shoot, in a hotel room, or on location without a second thought.

The rigid aluminum keyboard webbing has been cut precisely to hold the keys. And the keys are curved to perfectly fit fingers. The result? Pure typing bliss. The keyboard is also illuminated, so when you’re in low-light settings, such as airplanes or conference rooms, you can always see what you’re typing. The first thing you might notice — or not notice — is the button. The entire trackpad is the button, so you can click anywhere. Without a separate button, your hands have 39 percent more room to move on the large, silky glass surface. Use two fingers to scroll up and down a page. Pinch to zoom in and out. Rotate an image with your fingertips. Swipe with three fingers to flip through your photo libraries. Swipe with four fingers to show your desktop, view all open windows, or switch applications. If you’re coming from a right-click world, you can right-click with two fingers or configure a right-click area on the trackpad. The more you use the Multi-Touch trackpad, the more you’ll wonder what you ever did without it.

Source :

Tuesday, February 17, 2009

new information technology

type of new informations technologyNew information technology is a summaries about the latest information technology that I have compiled from many sources and links. Just stay at your seat and have a read !.

Microsoft Jumps Into Mobile Mall Melee

Photos courtesy :

Microsoft tooks the opportunity at the Mobile World Congress to
announce three new ventures the company will take in the smartphone space. Microsoft will offer a new, upgraded Windows Mobile 6.5 operating system, a new Windows Mobile application store, and a Web-based service for accessing, transferring and backing up smartphone-based information. Microsoft hardware partners LG and HTC also announced new phones that will run Windows Mobile 6.5 -- though Microsoft will de-emphasize the "6.5" version number and market the operating system to consumers simply as "Windows phones."

type of new information technologyLG will release its LG-GM7300, which will be available first on Windows Mobile 6.1 but will later run Windows Mobile 6.5. LG also announced that the company will make Windows its primary operating system for its smartphones, generating a tenfold increase in the volume of Windows-based phones in 2009. LG plans to bring 26 new Windows phones to market in 2012. HTC announced that its Touch Diamond 2 and Touch Pro 2 will be upgradeable to Windows Mobile 6.5. The Touch Diamond 2 features HTC's TouchFLO 3-D touchscreen interface on 3.2-inch high-resolution widescreen display. The HTC Touch Pro 2 introduces HTC's new Straight Talk technology for a new integrated e-mail, voice and speakerphone experience. The new phones will be available in the second half of 2009.
Microsoft has been playing in the smartphone game for ages, yet it's been overshadowed by the Apple (Nasdaq: AAPL) More about Apple iPhone, Research In Motion's (Nasdaq: RIMM) More about Research In Motion BlackBerry lineup, Google's (Nasdaq: GOOG) type of new information technology Android-based efforts, and even Palm (Nasdaq: PALM) type of new informations technology to some extent, with that company's upcoming Palm Pre. Windows Mobile 6.5 features Windows Marketplace for Mobile, where users can search, browse and purchase mobile applications for a Windows phones. The new store is also accessible via a PC by using a Windows Live ID. Microsoft says 20,000 applications have already been built for Windows Mobile-based phones, and developers will be able to offer their applications in the new store after a security and compatibility check from Microsoft. Microsoft also announced Microsoft Recite, a voice search technology for Windows phones version 6.0 or later, that lets users record, search, and retrieve spoken notes and reminders using just their voices. It's available as a free technology preview here.

Facebook backs down on privacy terms

Facing a federal complaint from a leading privacy advocacy organization and a revolt of tens of thousands of its users, Facebook on Tuesday night backed down from what many have seen as an onerous privacy policy. The policy had seemed to grant Facebook perpetual rights to users' uploaded content, and the threatened complaint from the Electronic Privacy Information Center (EPIC) had demanded, essentially, that the social-networking service return to its previous terms. Facebook CEO Mark Zuckerberg wrote in a blog post late Tuesday that the company had decided to do just that:

Many of us at Facebook spent most of today discussing how best to move forward. One approach would have been to quickly amend the new terms with new language to clarify our positions further. Another approach was simply to revert to our old terms while we begin working on our next version. As we thought through this, we reached out to respected organizations to get their input. Going forward, we've decided to take a new approach towards developing our terms. We concluded that returning to our previous terms was the right thing for now. As I said yesterday, we think that a lot of the language in our terms is overly formal and protective so we don't plan to leave it there for long. More than 175 million people use Facebook. If it were a country, it would be the sixth most populated country in the world. Our terms aren't just a document that protect our rights; it's the governing document for how the service is used by everyone across the world. Given its importance, we need to make sure the terms reflect the principles and values of the people using the service. Our next version will be a substantial revision from where we are now. It will reflect the principles I described yesterday around how people share and control their information, and it will be written clearly in language everyone can understand. Since this will be the governing document that we'll all live by, Facebook users will have a lot of input in crafting these terms. "If you'd like to get involved in crafting our new terms," Zuckerberg wrote, "you can start posting your questions, comments and requests in the group we've created--Facebook Bill of Rights and Responsibilities. I'm looking forward to reading your input." Certainly, we'll have more on this as it develops.

Google's newest Android prepares to battle Apple

Google launched the latest salvo in the cellphone wars Tuesday with the unveiling of the newest handset to carry its Android platform. Unveiled at the Mobile World Congress in Barcelona, Vodafone's HTC Magic smartphone will make its European bow in the UK, Spain, France and Germany in the coming months. In Italy it will be available under a non-exclusive contract.

The Google-run handsets are regarded as the chief rivals to Apple's iPhones in the battle for the next generation of mobile devices. Google's latest foray into the cell phone market is seen by many as the beginnings of the Internet giant's attempts to dominate the industry. Some have expressed concerns that cell phone manufacturers, network operators and users will have little control over what data Google will be able to utilise from its software. Among critics is the LiMo Foundation, representing Linux-based operating system LiMo, which has launched its own cell phone platform, according to Congress organizer Groupe Speciale Mobile Association's daily newsletter.

"A lot of operators still harbor some questions over whether they will have the control over services and how much of the data that is going out and coming from a Google device goes to Google and how much to you [the operator]," LiMo's Andrew Shikiar told Mobile Business Briefing.

Users of both the Apple and Google models can download applications developed by third-parties from open-source software, potentially giving them the capability of small handheld computers. The first Android-capable handset, the G1, was launched last year. It partnered with T-Mobile for its UK launch, its first foray into the European market.

25 Best Blogs 2009 consider to
Wednesday, February 18, 2009

Talking Points Memo : Political Blog
2. the Huffington Post : Political Blog
3. Lifehacker : digital devices
4. Metafilter ( MeFi ) : community weblog
5. The Daily Dish
6. The Freakonomics blog : economic
7. BoingBoing : Directory of Wonderful Things
8. Got2BeGreen : economic
9. Zen Habits : blog about personal productivity, organization, living frugally, eliminating debt,
and cultivating good habits.
10. The Conscience of a Liberal: Paul Krugman : economic
11. Crooks and Liars : political blog
12. Generacion Y : political blog
13. Mashable : social networking
14. Slashfood : food
15. The official Google blog
16. synthesis : Opinion & Ideas
17. bleat : daily diary
18. /Film (pronounced Slashfilm) : alternative movie news and review blog
19. Seth Godin's Blog : Marketing diary's
20. Deadspin : Sports News without Access, Favor, or Discretion
21. : pregnancy
22. Drummond's blog : Confessions of a Pioneer Woman
23. Said the Gramophone : Music
24. Detention Slip : education
25. Bad Astronomy : Astronomy

Sources :

Tuesday, February 3, 2009

Understanding Cellular network technology.

How the mobile phones works ?
Understanding Cellular network technology.
Understanding Cellular network technology. I think this topic can be useful for the people who wants to know about Cellular network technology. and here are the articles :

A cellular network is a radio network made up of a number of radio cells (or just cells) each served by a fixed transmitter, known as a cell site or base station. These cells are used to cover different areas in order to provide radio coverage over a wider area than the area of one cell. Cellular networks are inherently asymmetric with a set of fixed main transceivers each serving a cell and a set of distributed (generally, but not always, mobile) transceivers which provide services to the network's users.
( photo courtesy : Wikipedia )

Cellular networks offer a number of advantages over alternative solutions:

  • increased capacity
  • reduced power usage
  • better coverage
A good (and simple) example of a cellular system is an old taxi driver's radio system where the taxi company will have several transmitters based around a city each operated by an individual operator. The primary requirement for a network to succeed as a cellular network is for it to have developed a standardised method for each distributed station to distinguish the signal emanating from its own transmitter from the signals received from other transmitters. Presently, there are two standardised solutions to this issue, frequency division multiple accesscode division multiple access (CDMA).

FDMA works by using varying frequencies for each neighbouring cell. By tuning to the frequency of a chosen cell the distributed stations can avoid the signal from other cells. The principle of CDMA is more complex, but achieves the same result; the distributed transceivers can select one cell and listen to it. Other available methods of multiplexing such as polarization division multiple access (PDMA) and time division multiple access (TDMA) cannot be used to separate signals from one cell to the next since the effects of both vary with position and this would make signal separation practically impossible. Time division multiple access, however, is used in combination with either FDMA or CDMA in a number of systems to give multiple channels within the coverage area of a single cell.

Practically every cellular system has some kind of broadcast mechanism. This can be used directly for distributing information to multiple mobiles, commonly, for example in mobile telephony systems, the most important use of broadcast information is to set up channels for one to one communication between the mobile transreceiver and the base station. This is called paging. The details of the process of paging vary somewhat from network to network, but normally we know a limited number of cells where the phone is located (this group of cells is called a Location Area in the GSM or UMTS system, or Routing Area if a data packet session is involved). Paging takes place by sending the broadcast message to all of those cells. Paging messages can be used for information transfer. This happens in pagers, in CDMA systems for sending SMS messages, and in the UMTS system where it allows for low downlink latency in packet-based connections.

The increased capacity in a cellular network, compared with a network with a single transmitter, comes from the fact that the same radio frequency can be reused in a different area for a completely different transmission. If there is a single plain transmitter, only one transmission can be used on any given frequency. Unfortunately, there is inevitably some level of interference from the signal from the other cells which use the same frequency. This means that, in a standard FDMA system, there must be at least a one cell gap between cells which reuse the same frequency. The frequency reuse factor is the rate at which the same frequency can be used in the network. It is 1/K (or K according to some books) where K is the number of cells which cannot use the same frequencies for transmission. Common values for the frequency reuse factor are 1/3, 1/4, 1/7, 1/9 and 1/12 (or 3, 4, 7, 9 and 12 depending on notation). Code division multiple access-based systems use a wider frequency band to achieve the same rate of transmission as FDMA, but this is compensated for by the ability to use a frequency reuse factor of 1, for example using a reuse pattern of 1/1. In other words, adjacent base station sites use the same frequencies, and the different base stations and users are separated by codes rather than frequencies. While N is shown as 1 in this example, that does not mean the CDMA cell has only one sector, but rather that the entire cell bandwidth is also available to each sector individually. Depending on the size of the city, a taxi system may not have any frequency-reuse in its own city, but certainly in other nearby cities, the same frequency can be used. In a big city, on the other hand, frequency-reuse could certainly be in use.

With CDMA, multiple CDMA handsets share a specific radio channel; the signals are separated by using a pseudonoise code (PN code) specific to each phone. As the user moves from one cell to another, the handset sets up radio links with multiple cell sites (or sectors of the same site) simultaneously. This is known as "soft handoff" because, unlike with traditional cellular technology, there is no one defined point where the phone switches to the new cell. Modern mobile phones use cells because radio frequencies are a limited, shared resource. Cell-sites and handsets change frequency under computer control and use low power transmitters so that a limited number of radio frequencies can be reused by many callers with less interference. Since almost all mobile phones use cellular technology, including GSM, CDMA, and AMPS (analog), the term "cell phone" is used interchangeably with "mobile phone"; however, an exception of mobile phones not using cellular technology is satellite phones. There are a number of different digital cellular technologies, including: Global System for Mobile Communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Evolution-Data Optimized (EV-DO), Enhanced Data Rates for GSM Evolution (EDGE), 3GSM, Digital Enhanced Cordless Telecommunications (DECT), Digital AMPS (IS-136/TDMA), and Integrated Digital Enhanced Network (iDEN).
(FDMA) and

Mobile phone
A mobile phone (also known as a wireless phone, cell phone, or cellular telephone) is a long-range, electronic device used for mobile voice or data communication over a network of specialized base stations known as cell sites. In addition to the standard voice function of a mobile phone, telephone, current mobile phones may support many additional services, and accessories, such as SMS for text messaging, email, packet switching for access to the Internet, gaming, Bluetooth, infrared, camera with video recorder and MMS for sending and receiving photos and video, MP3 player, radio and GPS. Most current mobile phones connect to a cellular network of base stations (cell sites), which is in turn interconnected to the public switched telephone network (PSTN) (the exception is satellite phones). Mobile phones send and receive radio signals with any number of cell site base stations fitted with microwave antennas. These sites are usually mounted on a tower, pole or building, located throughout populated areas, then connected to a cabled communication network and switching system. The phones have a low-power transceiver that transmits voice and data to the nearest cell sites, normally not more than 8 to 13 km (approximately 5 to 8 miles) away. When the mobile phone or data device is turned on, it registers with the mobile telephone exchange, or switch, with its unique identifiers, and can then be alerted by the mobile switch when there is an incoming telephone call. The handset constantly listens for the strongest signal being received from the surrounding base stations, and is able to switch seamlessly between sites. As the user moves around the network, the "handoffs" are performed to allow the device to switch sites without interrupting the call.

Hand phones: what is a hand phone?

A hand phone contains its own battery power source and relies on radio waves for "wireless" communication to the Telephone Service Provider. From the service provider your call is routed to its destination with the same or another service provider. Hand phones are usually more expensive than fixed line telephones. GSM hand phones usually offer more services, smaller size, and longer standby and talk times than other hand phones. GSM telephones (900) are more common in other countries and therefore easier to connect for service, or resell, than are the GSM 1800 telephones. There are also Dual Band phones that work on GSM or GSM 1800 systems. Before buying a hand phone you should decide which service provider you are going to use. Your telephone needs to be compatible with the provider that you use. In buying a hand phone you should look at its features, the size, the amount of battery stand-by and talk time, and the warranty provided by the seller. The following features are provided by most GSM telephone companies, some of the features are provided by other types of telephones as well:

Memory for frequently called phone numbers stored in the telephone
Voice mail - for callers to leave messages when you are not available
Call waiting and call diverting to manage incoming calls
Caller identification shows the number of an incoming call and allows screening of calls
Alarm, calculator, exchange conversion and games
Voice recognition dialing
One-touch dialing
Data transmission via PC of fax, e-mail, or the Internet for GSM telephones
Changeable phone ring tones

Sources : Wikipedia

Friday, January 23, 2009

Offeral new download tool for Web developers.

Microsoft offers download tool for Web developers. Microsoft is offering a free download manager, Web Platform Installer (PI) 1.0, intended to make it simpler to install Microsoft Web developer technologies ranging from .Net Framework 3.5 to ASP.Net to Silverlight and more, the company said this week. The tool installs Microsoft's entire Web Platform, including Internet Information Server, Visual Web Developer 2008 Express Edition and SQL Server 2008 Express Edition. With the installer interface, developers can install either specific products or the entire Web Platform. Web PI also offers the latest editions of the platform. The tool provides an almost one-click download install of Microsoft's free Web products, saving developers from having to go to different Web sites to install and configure these products.

The Web Platform Installer (Web PI) is a simple tool that installs Microsoft's entire Web Platform, including IIS, Visual Web Developer 2008 Express Edition, SQL Server 2008 Express Edition and the .NET Framework. Using the Web Platform Installer’s user interface, you can choose to install either specific products or the entire Microsoft Web Platform onto your computer. The Web PI also helps keep your products up to date by always offering the latest additions to the Web Platform.

System requirements

  • Supported Operating Systems are: Windows Vista RTM, Windows Vista SP1, Windows XP, Windows Server 2003, Windows Server 2008.
  • You must have a live Internet connection.
  • You must have administrator privileges on your computer to run Web Platform Installer.
  • .NET 2.0 Framework
  • Supported Architectures: x86 and 64-bit
Source : Microsoft


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