Mobile
A:
The positive effects of cellphones include the essential role the device plays in emergencies, and the opportunity the device allows for convenient communication; the top negative effects of cellphone use include the distracting role cellphone use plays in education and automobile accidents. The cellphone is becoming a necessary component of modern civilization.
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Q: Can restricted numbers be traced?
A: It is entirely possible, though not always free or easy, to trace restricted phone calls. The first point of contact should always be the phone carrier because the carrier may have security measures in place or functions available which can stop or track down the source of these calls. -
Q: What is a personal hot spot?
A: A personal hotspot is a function of many smartphones and portable devices enabling them to connect the Internet to a local wireless network. This creates a small area of Wi-Fi coverage that allows other devices to connect to the Internet. The smartphone or other device essentially serves as a router. -
Q: Why is the telephone so important?
A: The telephone is an important invention that expanded and simplified communication. This invention sped and increased global communication, increasing the capacity for real-time interaction at a distance. The telephone also changed how people communicate with each other on a daily basis. -
Q: How do you block outgoing numbers on a land line?
A: Outgoing calls are blocked using the star (*) 67 feature. Dialing *67 prior to inputting telephone numbers prevents the caller's number from being viewed on the receiving end. -
Q: What are all of the active cell phone companies in the U.S.?
A: There are 85 cellular providers in the U.S. However, only 10 of these providers are well-known and used by the majority of the population. -
Q: What is the difference between a locked and unlocked cell phone?
A: When someone purchases a cell phone from his wireless provider, the phone is almost always considered to be locked. This means that it only works on the wireless provider's network. An unlocked cell phone works on any network. -
Q: How do you make a reverse charge call?
A: To place a reverse-charge call, also known as a collect call, you must first call a company that offers this service. AT&T, 1-800-COLLECT and Skype are companies that offer reverse-charge calling. -
Q: What is Boingo Wireless?
A: Boingo Wireless is a company that provides wireless Internet connectivity for a variety of customer types. Consumers, businesses and government entities can all make use of Boingo's products. -
Q: What are smartphone widgets?
A: Widgets are elements in the smartphone's home screen that offer a quick preview of an installed app's contents. Widgets can also act as a shortcut to an app or one of the smartphone's settings or features. -
Q: Who invented the Kindle?
A: If any one person can be credited with the invention of the Amazon Kindle it's Gregg Zehr, head of the Amazon Lab126 product development team. So although the creation of the first generation Kindle device was a collaborative effort, Zehr can claim credit for being the father of eBook readers. -
Q: Does South Korea use a CDMA or GSM phone network?
A: South Korea uses the code division multiple access standard for its mobile phone network. Along with the United States and Japan, South Korea is among the few countries in the world that use CDMA. -
Q: What are the advantages and disadvantages of mobile computing?
A: Mobile computing allows a user to take her office with her anywhere she goes, but it also gives thieves more of an opportunity to steal files and other sensitive information. This is accomplished by hacking a user's device or Internet access point. The latter is especially risky if the user is using a public Internet access point such as a wireless hot spot at a coffee shop. -
Q: What are some repair options for a broken iPhone 5s screen?
A: Apple offers screen damage repair in-store and by mail with cost depending on if the owner has Apple Care or not. There are also third-party screen repair shops available. -
Q: Can you use a phone for the Internet without Wi-Fi?
A: Smartphones are designed to access the Internet and download information using cellular service towers, just like voice and text messages. However, using Wi-Fi for data won't impact the monthly usage costs. -
Q: What does a fast busy signal mean on a cellphone?
A: A fast busy signal on a cellphone means that all of the cellular circuits are tied up by other users, and the call cannot go through to the intended person. In these instances, a caller must hang up and redial until the cellular circuits can transfer the call to the intended person. -
Q: What materials are mobile phones made from?
A: Mobile phone parts are made from a combination of rare earth elements and plastics. Rare earth elements are used to create the glass display, magnets in speakers, headphones and vibrating motors in cell phones, according to PBS. -
Q: What are some reasons an iPhone won't connect to the Internet?
A: Some reasons that an iPhone won't connect to the Internet include the airplane mode being turned on, the phone having out-of-date software or difficulty in locating or connecting to a network. In most cases, it is an easy fix to resolve these issues. -
Q: When was the SIM card invented?
A: The first SIM card was produced in 1991 by Giesecke & Devrient in Munich. Giesecke & Devrient sold the first 300 SIM cards to the Finnish wireless network operator Radiolinja. -
Q: What does SMH mean in texting?
A: SMH is an acronym for “shake my head” or “shaking my head”. In addition to being used when texting, SMH is also used on social networking websites and similar venues. Some people occasionally use SMH and similar abbreviations in email communications. -
Q: What is the symbol for a smiley face when texting?
A: The symbol for a smiley face when texting is a colon followed by a parenthesis sign that opens to the left. In practice, the symbol looks like this :) -
Q: How do communication satellites work?
A: Communication satellites work by sending signals and transmissions down to Earth stronger than the signals received by the satellites. These Earth-orbiting devices convert transmissions from one frequency to another, so signals are not confused between transmission and reception. Communications satellites contain antennas, transponders, power sources and propulsion systems.
