Grandma & Grandpa's Farm
Showing posts with label Electronics. Show all posts
Showing posts with label Electronics. Show all posts

Tuesday, March 24, 2009

Need or Want :: Necessity or Luxury

When a Cellphone Stops Being a Luxury

There are many times I have heard on "The People's Court" where the judge has said that "a cellphone is a luxury and not a necessity." Now I do know where she is coming from and agree with what Judge Milian is saying. However sometimes we must lift the brush we are painting with and make sure we are not painting too broad a swath.

It might seem strange, but perhaps the truly needy are the ones who need the "luxury" of a cell phone the most?

The people who are homeless and living on the street are people, just like you and me, who have needs and desires — and I am not just speaking of a desire to chatter with someone a block away on a cellphone.

If you are homeless and manage to land an entry-level job, you will hit obstacles because there are no regular ways to contact you. After failing to contact you a number of times through numbers at soup kitchens or shelter switchboards, your employer is likely to label you "unreliable" — costing you that job.

A pay-as-you-go or "no contract" cellphone might not cost very much for an inexpensive model and if you do not use it much, might not cost much to operate each month. But, it does give that important contact number for employers, potential employers, future employers, social agencies, and family to keep in touch with you. Some of this can be very important so that you don't feel like you've fallen off the face of humanity.

Granted when you are on the street and near cashless, your calls on the cellphone are likely to be short and to the point: "Hello...I'm fine...I'll meet you at the coffee shop on first and main in half an hour... see you there, you have my number." A person wants to minimize the minutes on the phone if you watch all the minutes you pay for in advance on the phone. Better to make appointments to talk in person for sure.

(image to right from Computer Finance)

...and then there are emergencies... have you noticed how far and in between the pay phones are now? How many folk would let a homeless person use the phone in their business or their personal cellphone even if they said it was a "911 Emergency"? That phone in the pocket could be a life saver.

So while a cellphone might be a luxury for the working poor who have homes and can afford a home phone, for the homeless... that phone might actually represent their home.

Later!
~ Darrell

160.

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"On D.C. Streets, the Cellphone as Lifeline" The Washington Post.

"That Homeless Guy Outside Starbucks? He Probably Has a Cellphone [Cellphones]" 23 Mar 2009 by Gizmodo; Computer Finance.

"Homeless find cell phones no longer a luxury" 23 Mar 2009 CTIA; Smartbrief.

"In America, Even The Homeless Have Cell Phones (Michelle Obama Edition)" 24 Mar 2009 by Nick Gillespie; Reason Magazine, Hit & Run.

"30% to 40% of D.C's homeless use cellphones" 23 Mar 2009 by Conner Flynn; SlipperyBrick.


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Saturday, March 14, 2009

DWP - Futurist At Large

A Direction for Near Future Tech

With current technology there is a trend towards the combining of functions and technologies. Perhaps it is not a "Swiss Army Knife" of technology we are looking at, but when you look at all that is being included in some items like your typically carried Cell phones -- there is a lot there.

I believe that all Cell phones include a phone book in them to record the numbers of calls coming in or going out. This is of course more convenient when tied in with the service of call display which many if not most subscribe to or have included in their service. Most if not all the phones also have some sort of calendar function in addition to a watch function and at least rudimentary alarm function if not one that can be programmed in conjunction with the calendar. Combining these they often have a virtual appointment book ability which would have been the envy of any business executive 20 years ago.

Nearly everyone could if they wish, have access to voice mail as well for missed calls or be able to forward calls to or from a regular phone service to their mobile one. They also have options to send or receive text messages. The price for them of course varies depending on service contract and location. (Not to mention date, phase of the moon, tide, which direction the last dark bird flew past your gaze...)

Those are pretty well standard sorts of communication things you might expect.

A bit more than that are Internet capabilities including being able to access eMail, Internet Chat services, and actual World Wide Web access. You might pay a bit heftier dollar for that ability and even more if you would like to be able to plug your portable computer into your cell phone whether it is a Notebook or Net book computer.

Beyond that... many of not most cell phones have the ability to take digital photographs if not short digital videos. It seems to me that the 1 Megapixel resolution level is very common if not greater. That is a log greater than most people might need for use in digital images for the Internet. Of course we are not talking about the needs of photographers here.

The phones -- and we aren't talking about the expensive sort really -- very often include the ability to download and play games in addition to other things like "ring tones" and background art for the control screen that nearly all phones have. That is the same screen you screen your digital pictures and videos on as well as check your messages and everything on.

The phone as well can often be used to play music on and can do well as an mp3 player with only the addition of decent headphones or earbuds.

All those things on fairly normal cell phones.

Then we get to the "smart phones" which are virtually tiny computers with complete keyboards or alternate methods for data entry. Some have nearly gone away from keys completely opting for total touch screen control -- that allows for the entire top surface of the device to be used as the device screen. Those can act as total digital assistants... or PDA -- Pocket Digital Assistants -- like the Palm Pilots of all. They seem to have superceded the Palm Pilots if you ever try go shopping for them.

The mp3 player has expanded as well to include the abilities to record sound like a portable voice recorder. The mp players also routinely include FM radio recievers and have enough memory to allow them to carry digital computer files within -- thus acting as "pen drives" or "memory sticks". Of course the mp3 players themself can use memory cards which gets sorta circular. The mp3 player also expanded into playing video and being an mp4 player. This is where they overlapped or became or inspired or...(?) the portable video player. The really nice ones also forgo the buttons for touch screens... and are nearly identical to the cell phones with the same screens. They just don't have the cell phone function. Though the mp3/video player ones did gain the wireless networking capability tha allows them to comunicate wirelessly and hence the good ones can access the Internet and do everything else those cell phone ones can do. They even play the same games in the same ways... and I believe from the same sources. Did I mention the phones can download and play the same videos the video players can?

Then there are the portable game players -- they have gotten more and more powerful and gained the ability to network wirelessly as well, and you can access the Internet as well as computers with them. Many of them have touch screens and they can be used to play videos or watch pictures on -- much like the mp3/video playes I have mentioned and the cell phones.

There are also eBook players out there whose purpose is to hold and display eBooks in various formats. They connect either through networking cables or more commonly now through wireless networking.

I might finally mention the digital picture frames which are very limited and the PDAs that I think morphed into the "smart phones" and mostly disappeared.

Perhaps the edges between these things are very much blurring -- especially if you take into account the notebook/laptop computers and their slightly smaller cousin the net book. I do see a direction that things might take with this blurry tech fog.

I think that people will start thinking of what their primary focus is and then go for the device that handles that best. Then they will purchase a device that does that best -- meaning with all the features of that dedicated device -- and have that device fitted with all the other features that would be convenient not to have to carry as separate devices.

Here is an example of what I am speaking:

Let's say I have a hobby that is photography. I would go to a camera shop and purchase a nice camera. It would have the lenses or a lens system that I would want. (I am not a photographer, so please bear with me as I am not so conversant with the terms and stuff.) Having chosen the camera I would also have a camera that would have digital memory for digitally recording the images as well as recording them on film. (Providing it took film photographs as well as digital ones.) It would be able to record sound and some video as well. The camera would be able to play mp3 files as a music player through headphones or ear buds although they might be bluetooth wireless ones. I would also be able to watch video content on the display screen of the camera if I should so choose. The camera would also have wireless networking to connect with WiFi hotspots or my computer and if I should choose I should be able to activate it to a cell phone plan and use it as a cell phone with a handy blue tooth headset. Not to mention using the camera for "texting" messages or as an address or date book.

Conversely if my prime usage were as a student, perhaps all of these functions might take place through a portable computer -- probably a net book for portability -- that I would use for all those functions.

I guess the idea sort of falls apart if you don't want to carry the large item everywhere, like when you don't want to carry the net book to everything, or the camera, or the digital tape recorder, or the electric guitar (with the phone etc. built in...)... But for the photographer, videographer, reporter, author, or other person who always carries their tools around with them...

Hmm, I guess they aren't building them into paint brushes or pens quite yet... but how about those scientific or engineering calculators... they still make calculators don't they?

Later!
~ Darrell

158.


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Friday, September 26, 2008

Electronic Coveralls

Why I Want a Cellphone

I have told many of my friends and my relatives in the past that I really do not need a cellphone. I still really do not need one, but I think I want one and I have my reasons. It isn't really to chatter with to friends, relatives, business contacts, or even enemies. I want one to reduce clutter. Just the way a pair of coveralls will cover and protect both your pants and shirt with one garment instead of a work smock and work pants, I want a cellphone to cover a few bases.

You see with my writing I like to have a camera at hand. I also want to have a source of radio-music and other audio at hand including a voice recorder. I use an mp3 player for voice recording, FM radio access, and for listening to audio books and music as well as for using as a USB flash drive. It would also be nice to carry a digital phone book, date book, and calculator. I could carry a digital camera, mp3 player, and some sort of PDA. But considering I would probably be content to be carrying around a digital camera that was 1 or 2 Megapixels, a halfway decent cellphone might cluster all those functions into one device.

I really don't want to make many calls... even a low minute regular plan is a bit extravagant to me so I am looking at pay-as-you-go or "no contract" cellphone plans. I don't need to web surf, though it would be nice to make the odd emergency call and to be able to text message the transit info for the schedule of the next 6 buses to come through at the stop I am standing at. I think it also would be neat to be able to read eBooks on.

I know I'll probably pay between $100 and $200 for the phone instead of getting it "free" on a 3 year plan, but I'll also probably only be paying $10-$15 per month if that... Hmm... now how soon 'til it balances out?

Later!
~ Darrell

141

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Unattributed images are from Image*After.


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Sunday, August 24, 2008

Surge's Up!

Look Ma! No Wires!

Something I have just come across on the technology news is something demonstrated by Intel -- a wireless power system!

Their demonstration involved a stand with a 60-Watt light bulb powered by their magnetic resonance technique. This technique uses a tuned coil to resonate with the same frequency as that of the oscillating magnetic field in the power source. (image to left -- image from Daily Tech¹)

Intel demonstrated the system August 22, 2008² with the 60-Watt bulb possibly because it "...uses more power than a typical laptop computer."² While transmitting power has been possible with different technologies since the times of Nikola Tesla -- back before power-lines crossed the countryside. ...Tesla came up with the technique of AC power.

Nikola Tesla was looking for ways to transmit power over long distances; thinking that nobody would be interested in laying grids of power lines across city and countryside. Of course we now now different with our cities and countrysides criss-crossed with networks of powerlines carrying Tesla's multi-phased AC current. Image to right of Nikola Tesla demostrating wireless power transmission. (image to right -- image from Serbia the Golden Apple³)

The Intel demonstration however was of shorter range and not intended for sending power across the city, rather its intent is to power devices within the home or office without wires. It might only mean not having to plug in your cell phone, but it charging whenever at home or in the office -- or perhaps being able to use your notebook computer anywhere in the house or office without draining the battery and without needing to plug in... ever.

Another area is peripherals for the computer. Consider wireless keyboard and mouse which will never need you to replace or recharge a battery. I have been writing about cell phones and computer stuff -- perhaps focusing on it because I am writing this article on a computer and that was what they talked about in the article. Perhaps this is also because Intel is aiming in this direction. There are likely many other applications that you and I can discover.

I wonder if there are medical possibilities for keeping artificial hearts and other devices charged and running? The main power-source kept outside transmitting power to the device - magnetically coupled to the source outside?


MIT team and their setup to power 60 Watt bulb. (image to left - image from MIT News Officeª)

The efficiency of the demonstration system with the light bulb was only 75% efficiency at around a metre distance so you might not want to think about tossing away every power-cord. On the other hand, you might be able to have power stations for certain tasks... like for instance your desk might have one and all the computer equipment and peripherals might be powered by a local station in the desk. That might include charging your PDA, cellphone, mp3 player, notebook computer, portable hard drive and similar equipment as well as powering the mouse, keyboard, and other equipment without any cords crisscrossing the desk.

Still I think you might have some resonant frequencies for the desk, kitchen, entertainment unit, and...

Of course... there are always the spectres of health issues. They say that the interaction at the frequencies used with biological materials is minimal... but how minimal is minimal and what effects might there be? People are starting to consider the growing background of microwave radiation we are being bathed with even if we don't use cellphones, cordless phones, or wireless networking. Perhaps those people who line their hats with tin foil might have a good idea.

Later!
~ Darrell

125.

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¹ "Intel Demos Bizarre Tesla-esque Wireless Power Transmission System" Jason Mick (blog) August 22, 2008 - Daily Tech.

² "Intel demos wireless power system" AFP August 22, 2008 - Canada.com.

³ "Genius From Smiljan" Serbia the Golden Apple - Nikola Tesla (Serbia).

ª "Goodbye Wires... - MIT News Office" MIT news.

Other links: "Travelling magnetic field for homogeneous wireless power transmission"; "Technology Review: TR10: Wireless Power".

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