Tuesday, October 19, 2010
jobs in ksa
http://www.pak.jobs-career-employment.com/articles/4590/1/National-Company-in-the-Environmental-Field-Based-Jobs-in-Jeddah-Saudi-Arabia/Page1.html
jobs in KSA
http://www.pak.jobs-career-employment.com/articles/4592/1/Coca-Cola-Company-Jobs-in-Riyadh-Saudi-Arabia/Page1.html
Tuesday, September 21, 2010
Sn0wbreeze 2.0 To Jailbreak iOS 4.1 Will Be Released Soon
All of you eagerly waiting to jailbreak your iOS 4.1 device because you purposely or accidentally upgraded, you probably won’t be waiting for long. New version of sn0wbreeze will be released imminently to jailbreak iOS 4.1 — DinoD7 has published a video of jailbroken iPhone to prove that is is possible to jailbreak iOS 4.1 using the new version of Sn0wbreeze:
Hack your Apple iPhone
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Monday, September 20, 2010
Cell-phone Network Technologies: 3G
3G technology is the latest in mobile communications. 3G stands for "third generation" -- this makes analog cellular technology generation one and digital/PCS generation two. 3G technology is intended for the true multimedia cell phone -- typically called smartphones -- and features increased bandwidth and transfer rates to accommodate Web-based applications and phone-based audio and video files.
3G comprises several cellular access technologies. The three most common ones as of 2005 are:
- CDMA2000 - based on 2G Code Division Multiple Access (see Cellular Access Technologies)
- WCDMA (UMTS) - Wideband Code Division Multiple Access
- TD-SCDMA - Time-division Synchronous Code-division Multiple Access
3G networks have potential transfer speeds of up to 3 Mbps (about 15 seconds to download a 3-minuteMP3 song). For comparison, the fastest 2G phones can achieve up to 144Kbps (about 8 minutes to download a 3-minute song). 3G's high data rates are ideal for downloading information from the Internet and sending and receiving large, multimedia files. 3G phones are like mini-laptops and can accommodate broadband applications like video conferencing, receiving streaming video from the Web, sending and receiving faxes and instantly downloading e-mail messages with attachments.
Of course, none of this would be possible without those soaring towers that carry cell-phone signals from phone to phone.
3G is a cell phone network protocol. Click here to learn about network protocols for Smartphones
3G is a cell phone network protocol. Click here to learn about network protocols for Smartphones
"Third generation" redirects here. For third-generation immigrants, see Immigrant generations. International Mobile Telecommunications-2000 (IMT--2000)
"Third generation" redirects here. For third-generation immigrants, see Immigrant generations.
International Mobile Telecommunications-2000 (IMT--2000), better known as 3G or 3rd Generation, is a generation of standards for mobile phones and mobile telecommunicationsservices fulfilling specifications by the International Telecommunication Union.[1] Application services include wide-area wireless voice telephone, mobile Internet access, video calls andmobile TV, all in a mobile environment. Compared to the older 2G and 2.5G standards, a 3G system must allow simultaneous use of speech and data services, and provide peak data rates of at least 200 kbit/s according to the IMT-2000 specification. Recent 3G releases, often denoted 3.5G and 3.75G, also provide mobile broadband access of several Mbit/s to laptop computers and smartphones.
The following standards are typically branded 3G:
- the UMTS system, first offered in 2001, standardized by 3GPP, used primarily in Europe, Japan, China (however with a different radio interface) and other regions predominated byGSM 2G system infrastructure. The cell phones are typically UMTS and GSM hybrids. The original and most widespread radio interface is called W-CDMA. The latest release,HSPA+, can provide peak data rates up to 56 Mbit/s in the downlink in theory (28 Mbit/s in existing services) and 22 Mbit/s in the uplink.
- the CDMA2000 system, first offered in 2002, standardized by 3GPP2, used especially in North America and South Korea, sharing infrastructure with the IS-95 2G standard. The cell phones are typically CDMA2000 and IS-95 hybrids. The latest release EVDO Rev B offers peak rates of 14.7 Mbit/s downstreams.
The above systems and radio interfaces are based on kindred spread spectrum radio transmission technology. While the GSM EDGE standard ("2.9G"), DECT cordless phones andMobile WiMAX standards formally also fulfill the IMT-2000 requirements and are approved as 3G standards by ITU, these are typically not branded 3G, and are based on completely different technologies.
A new generation of cellular standards has appeared approximately every tenth year since 1G systems were introduced in 1981/1982. Each generation is characterized by new frequency bands, higher data rates and non backwards compatible transmission technology. 4G systems are expected to appear in 2011-2013 (pre-4G systems like LTE and mobile WiMAX have already appeared), and fifth generation systems after 2020. The first release of the 3GPP Long Term Evolution (LTE) standard does not completely fulfill the ITU 4G requirements called IMT-Advanced. First release LTE is not backwards compatible with 3G, but is a pre-4G or 3.9G technology, however sometimes branded "4G" by the service providers.
Definitions of 3G network on the Web:
- International Mobile Telecommunications-2000 (IMT-2000), better known as 3G or 3rd Generation', is a family of standards for mobile telecommunications defined by the International Telecommunication Union, which includes GSM EDGE, UMTS, and CDMA2000 as well as DECT and WiMAX. ...
Sunday, September 19, 2010
A mobile phone (also called mobile, cellular phone, cell phone or handphone
)[1] is an electronic device used for full duplex two-way radio telecommunications over a cellular network of base stations known as cell sites. Mobile phones differ from cordless telephones, which only offer telephone service within limited range through a single base station attached to a fixed land line, for example within a home or an office.
A mobile phone allows its user to make and receive telephone calls to and from the public telephone network which includes other mobiles and fixed line phones across the world. It does this by connecting to a cellular network owned by a mobile network operator. A key feature of the cellular network is that it enables seamless telephone calls even when the user is moving around wide areas via a process known ashandoff or handover.
In addition to being a telephone, modern mobile phones also support many additional services, and accessories, such as SMS (or text) messages, email, Internet access, gaming, Bluetooth, infrared, camera, MMS messaging, MP3 player, radio and GPS. Low-end mobile phones are often referred to as feature phones, whereas high-end mobile phones that offer more advanced computing ability are referred to assmartphones.
The first handheld cellular phone was demonstrated by Martin Cooper of Motorola in 1973, using a handset weighing in at two kilos.[2] In the year 1990, 12.4 million people worldwide had cellular subscriptions.[3] By the end of 2009, only 20 years later, the number of mobile cellular subscriptions worldwide reached approximately 4.6 billion, 370 times the 1990 number, penetrating the developing economies and reaching the bottom of the economic pyramid.[4]
Definitions of mobile phone on the Web:
- cellular telephone: a hand-held mobile radiotelephone for use in an area divided into small sections, each with its own short-range transmitter/receiver
wordnetweb.princeton.edu/perl/webwn - A mobile phone or mobile (also called cellphone and handphone) is an electronic device used for mobile telecommunications (mobile telephone, text messaging or data transmission) over a cellular network of specialized base stations known as cell sites. ...
en.wikipedia.org/wiki/Mobile_phone - Attributive form of mobile phone, noun
en.wiktionary.org/wiki/mobile-phone - A portable telephone that connects with the telephone network over radio wave transmission
en.wiktionary.org/wiki/mobile_phone - A cellular telephone that is permanently installed and integrated into the wiring of a motor vehicle. May be either hands free or hand held models. Also called a car phone.
www.nhtsa.dot.gov/people/injury/research/wireless/append.htm - The type of cellular phone that is installed in a motor vehicle. There are three main types of cellular phones mobile, transportable, and portable. A mobile unit is attached to the vehicle, draws its power from the vehicles battery and has an external antenna.
www.college-finances.com/cell-phone.html - The term that can be inter-changed with cellular phone or wireless phone.
www.gpsanywhere.net/cellular_glossary.html - This is a portable phone that usually the cellular or satellite networks to transmit data such as a voice conversation or SMS.
www.digital10.com/index.php - enter mobile phone number information (xxx-xxx-xxxx)
www.bedbathandbeyond.com/bridalToolKit/btUploadDef.asp
4g phones
4G refers to the fourth generation of cellular wireless standards. It is a successor to 3G and 2G families of standards. The nomenclature of the generations generally refers to a change in the fundamental nature of the service, non-backwards compatible transmission technology, and new frequency bands. The first was the move from 1981 analog (1G) to digital (2G) transmission in 1992. This was followed, in 2002, by 3G multi-media support, spread spectrum transmission and at least 200 kbit/s, soon expected to be followed by 4G, which refers to all-IP packet-switched networks, mobile ultra-broadband (gigabit speed) access and multi-carrier transmission.[citation needed] Pre-4G technologies such as mobile WiMAX and first-release 3G Long term evolution (LTE) have been available on the market since 2006[1] and 2009[2][3][4] respectively.
Google Phone Going to be 3G?
The Google Phone (gPhone) is the most hotly awaited mobile phone since, well… the iPhone, which is going to be released in the UK on the 9th Nov 2007. Every other week a new “leaked” story comes about the Google phone sayingthat is will be released within the next two weeks. All of these stories have been wrong, but now the sources are getting better and Google’s share price went up by over $3 billion following the latest “leaked” story in the Wall Street Journal. They are even some saying that there will never be a google phone, only a google mobile platform.
Part of the latest rumours have said that the Google phone could be 3G and could avaPart of the latest rumours have said that the Google phone could be 3G and could available one Three. This would great news for users and the network alike. The iPhone a very sexy gadget but Apple want to squeeze the last drop of money out of users, so they locked it to one network (O2) and slapped on a £269 price tag. Google’s main revenue stream is advertising, so a high price for the handset is not expected. I’m forecasting that the Google phone will be free, Google want the phone in as many people’s hands are they can get.
Google’s company motto is “do no evil”, while Apple’s is “high, high prices”. Come on Apple, you make some great products but your prices are simply too high for the general public.
http://three-uk.com/blog/wp-content/uploads/2007/11/google_phone.jpg
5 reasons to avoid iPhone 3G by John Sullivan
The 5 real reasons to avoid iPhone 3G:
- iPhone completely blocks free software. Developers must pay a tax to Apple, who becomes the sole authority over what can and can't be on everyone's phones.
- iPhone endorses and supports Digital Restrictions Management (DRM) technology.
- iPhone exposes your whereabouts and provides ways for others to track you without your knowledge.
- iPhone won't play patent- and DRM-free formats like Ogg Vorbis and Theora.
- iPhone is not the only option. There are better alternatives on the horizon that respect your freedom, don't spy on you, play free media formats, and let you use free software -- like the FreeRunner.
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