The Cellphone: The History and Technology of the Gadget That Changed the World

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We wrote: "If you subscribe to cable TV, you are familiar with 'the box. It has 37 channel-selecting buttons that allow you to receive all your local channels and a few dozen other channels, too—all with crystal-clear reception. Although it seems as if everyone you knew had an NES in the late '80s, it's technically just the 10th-bestselling console of all time only 62 million sold. Yet all those that sit above it in the standings, from the No.

The First Ever Public Mobile Phone Call

Fire up the DeLorean: " Games Bounce Back ," October , in which Meigs reported on the revival of video games at the Consumer Electronics Show, back when Nintendo was "a company most Americans are just getting acquainted with. The 80s makes the point pretty plainly: In not really so long ago! By the end of the '80s, the world was in the midst of the PC revolution that's still changing our world.

That's about all that needs to be said. On April 12, , Columbia blasted into orbit to inaugurate STS-1, the maiden voyage of the space-shuttle program.

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Today we look back on the space-shuttle era with mixed feelings. As Meigs wrote on the occasion of the shuttle's retirement , the program racked up lofty statistics, carrying people into space and completing more than 20, orbits of Earth. Yet it also provided one of the traumatic national events of the '80s when the Challenger exploded and killed all seven astronauts on board seven more would be lost in the Columbia disaster of The shuttle was a delicate piece of hardware whose construction was overly politicized. But it also provided a passage to orbit for more than three decades—a pathway America doesn't have now, as new U.

It was time to let the shuttles go. But, like a lot of Americans, everyone here in the PopMech office gathered around the TV to watch that last launch two years ago.

A basic mobile phone is therefore little more than a combined radio transmitter and radio receiver, quite similar to a walkie-talkie or CB radio. In order to remain portal, mobile phones need to have relatively compact antennas and use a small amount of power. This allows you to talk to your friends regardless of how far away your friends are. The huge phone masts pick up the weak signal from your phone and relay it onwards to another phone mast nearer to your friend.

A Whole New World, Brought to Us by Gizmos and Gadgets

F igure 2. Cell network source: www. The Parts of Cell Phone If you take cell phone apart, you find out that it contains just few individual parts, such as, an antenna, a liquid crystal display LCD , a keyboard, a microphone, a speaker, and a battery. Inside the phone there is a circuit board. The circuit board is the heart of the system. The computer chips on the circuit board would consist of three divisions.

First, the analog-to-digital and digital-to-analog conversation chips which translate the out- going audio signal from analog to digital and the incoming signal from digital back to analog. It can process millions of calculations per seconds in order too compress and decompress the voice stream. F igure 8. Parts of cell phone source: www.

In this division, you would discover that the DSP is a highly customized processor designed to perform signal manipulation calculations at high speed. Then the third division is the microprocessor. This handles all the main functions for the key board and displays, deals with command and control signalling with the base station cell tower also coordinates the rest of the functions on the board.

The radio frequency RF and power section handles power management and recharging, and also deals with the hundreds of FM channel. Lastly, the RF amplifiers handle signal travelling to and from the antenna.

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How Cell Phone Changed the World The first major change that cell phone brought was that you can contact anyone everywhere at any time. The introduction of cell phone has made communication easy in such a way that a wife can teach her husband how to cook just through phone call. Before cell phones, for most people, if you left your house, you could not be reached. This is no longer the case. Not only can your friends and family reach you whenever, but your job can as well. This has resulted in increased productivity.

In Africa, most herdsmen can contact their families and friends no matter how far they take their cattle for grazing. And while there are people who think that this is a complete and utter breach of privacy and that the old way was better, we believe that this is a good thing as it allows friends and family to be able to communicate no matter where they are.

In addition, cell phone helps us to organize our daily activities more easily. For instance, business partners can make appointments through phone call, also business meetings could be held through conference phone call.

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Another exciting aspect is that plans could be changed by the use of cell phone; when you plan to meet a friend at a particular time and something comes up so you cannot meet or you want to change the time you can just do that with a phone call. Cell phone helps us to get easy access to knowledge; The Internet which was previously limited to a computer, then graced the laptop and now phones, has made spread of knowledge and information easy and quick.

Now who needs the newspapers to know about what's happening in the world? Your cell phone is your most trusted and portable encyclopedia. Now we hardly see writing of letters as people have joined the text message train; it will not be wrong to say that writing letters today has become an ancient practice. What people now do is to simply send texts or emails through their phones. In previous times, one would actually spend a day or two in structuring and completing a letter, then spend extra money on mailing it and finally waiting till the letter reaches the desired person.

People from our generation will consider this as a strenuous activity. Cell phones, especially Smart Phones have everything you need! You can listen to songs, read books, access news, social networking sites and play games - all on your phone. It has in fact changed our very ways of life. From paying your parking, food, shopping bills to credit card transactions, measuring temperature, checking the weather forecast to taking pictures and videos, painting, drawing, playing your favorite instrument virtually, all this and much more is what the capacity of that little gadget has.

Our cell phones have become essential source of spending downtown; Phones have practically become an essential source of spending time. When you have nothing to do or no one is with you, all you need is your phone to be your companion or the special unit you can do an activity with. Just pick up your phone and either listen to songs, watch movies, call up a friend, check your emails or your accounts, click photos, and play games. With all this and more why would one need anything else?

The phone numbers these days have become our personal identities; Companies, institutions, and organizations who once needed to take a customer's or a client's full address to communicate with them, now only need their phone numbers. They send greetings, invitations, meeting notifications and information directly on your phone. So, your mobile number is your identity. The cell phone introduction to the world is a blessing in disguise.

Below are the bad changes cell phone has brought to the world: Cell phones have almost replaced the need to be around people. It's not that you don't want people around you, but that you want to be alone so that you can browse or listen to songs or play games on your phone. We no longer need company, as long as we have our phones with us. A cultural shift has been observed in ethics, and the traditional ways followed. For example: talking while eating was considered as bad manners.

However, today it has become a common habit because so much is dependent on cell phones that its untimely and unrestricted use has been accepted worldwide. Talking in a cinema hall or at a funeral was once considered as a disturbance, but today it is overlooked. Mobiles have also replaced the age-old tradition of sending invites by an email or a text message. A recent survey has shown that cell phones are shifting the young minds away from reality.

This is because most of their time is spent in texting, chatting or talking on the phone, not allowing them to spend time with books, playing sports, with nature and with the real life. Now, we don't need to go out to buy groceries to pay our bills, and to go out and play. The Apple II not only changed the face of personal computing Now, it's time for an Apple computer to make our list.

The Apple II not only changed the face of personal computing, it ushered in other key transformations, like Visicalc , the first commercial spreadsheet program. While computerized mailing lists had existed for years on the Arpanet, it wasn't until that the precursor of our modern day forums and BBSs was created.

How mobile phones changed your world

There was only one phone line, so each participant had to wait until a previous user hung up to gain access. The importance of BBSs can both be mocked and celebrated.

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Without BBSs, we probably wouldn't have as many trolls as we do online. But BBSs were also the first social networks, a way for consumers and interested parties to gather together, magnify their influence, and share information. It's hard to believe now, but the idea of private, personal music didn't exist before Either you played albums on your home stereo or blared the music from cassette tapes to the entire neighborhood on your boombox.

Read also: Japanese tech that makes us jealous. But in , when Sony introduced the Walkman , you could finally listen to your choice of music, in private. This reduced family bickering, made it possible for workers to listen to their own music on the job when appropriate, of course , and gave a lift to the entire music business.

Next: The s.

The History and Evolution of Cell Phones

The new laptops are among the first products to support the USI standard, which will allow one digital stylus to be used with multiple compatible devices rather than being tied to a Facebook's 'mind-reading' tech startup deal could completely change how we control computers. Facebook's latest foray into brain computer interfaces is a reflection of the changing nature of hardware and how we interact with it. Amazon has a killer deal on Motorola smartphones right now.

Amazon is forming a template for its innovation cadence. Launch a slew of products for multiple use cases and see what ultimately takes off. Cisco warning: These routers running IOS have 9. Cisco is also telling customers to disable an L2 traceroute feature in IOS for which public exploit code exists. Worldwide smartphone, tablet, PC shipments slump in Gartner. Global shipment rates are expected to tank over the course of this year. Apple: You'll be warned if your iPhone 11 uses a non-genuine replacement screen. Apple is monitoring for non-genuine screen replacements.

It won't brick iPhones, but it could affect servicing. New Amazon Echo devices: Prices, release dates, and pre-order info. Here is everything Amazon announced during its hardware event in September, including how much each new Echo device and Amazon device costs, when it's up for pre-order or releasing, The s tech that changed us Take a journey with us back to the s. We're not just looking at technology year by year in this decade, we're looking at what had an impact on us and paved the way for the future. More tech nostalgia Say hello to the early days of web browsers Nokia handsets through the ages: Bricks, bananas, and back From paper tape to a patched-together Altair , the story of my first computers Best looking retro Bluetooth speakers 19 retro gadgets we think should get a reboot We are obsessed with these retro computer ads from the early s TechRepublic SNES Classic, Nokia and other retro tech done right CNET.

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