Thursday, July 31, 2008

The Early Digital Camera

By: Roberto Sedycias

A digital camera is basically a digital device that enables images to be captured. Digital camera images are stored electronically rather than on film. This process involves converting light into electrical charges, and then translating this back into the image that was seen through the digital camera LCD. Although the digital camera is a recent addition to the world of photography, the concept of the possibility of a digital camera was begun in the 1950s.

The early concept of the digital camera was closely linked to television technology. It began with digital images being recorded on scanners and in the form of digital video signals. In 1951 broadcasting companies were recording images as electrical impulses and onto magnetic tape from their television cameras, and this paved the way for digital camera technology to begin. By 1956 electrical impulse recordings were common practise within film industry, and camera manufacturers began to dream of a digital camera device.

The first record of a patent for a type of digital camera was in 1972 when Texas Instruments patented a camera that did not require film. However, the patent revealed a more analog based design rather than a digital camera, and there is no record of whether the camera was actually created. What the patent does show, however, is that interest towards a digital camera was growing with the idea that the need for film could be removed. A pioneer in the history of digital camera was Steve Sasson, an engineer at Kodak. Digital images were of the moon were being transmitted via satellite by NASA, using a mosaic photo sensor, and he saw the possibility of a digital camera for commercial use. In 1972 he began to group together available equipment used within the film industry to create an image digitally rather than on film.

Central to this early concept of the digital camera, and still used by digital cameras today, is the Charged Coupled Device. The CCD detects light and colour intensity and then converts this information into electrons. The value of each cell in the image is then read, and converted to binary format to make the image computer compatible. Steve Sasson produced his first digital camera image in 1979. The image took a total of 23 seconds to take, and a further 23 seconds to read from the playback unit. Although the digital camera image was less than perfect, it showed that the digital camera was a possibility. Kodak had developed a camera that developed picture from light, but it was never manufactured for the public.

The first camera to be marketed was the Sony Mavica electronic still camera in 1981. It was not a true digital camera as the image was recorded on mini disc, and then attached to a television or video. It was more a freeze frame video camera but it greatly influenced people`s attitude to the recorded image. It made public the possibility of a camera that stored images using techniques other than film. It still used more television technology but was the first hand held with the general idea of digital camera usage. Cameras that could transmit images via satellite became popular, but were used by the media only due to the expense incurred. The possibilities were becoming apparent and images were used for news coverage. The first camera for general use with a computer was the Apple Quicktake 100 camera which appeared in1984. In 1986 the Canon RC-701 was used for coverage of the Olympics, with quality images printed in the newspaper. This showed the possible quality, and the desire for the digital camera was born.

The first mega pixel sensor was invented in 1986. It contained 1.4 million pixels and was suitable for a digital camera image measuring 5x7 inches. In 1987 accessories for storing, printing, manipulating, transmitting, and recording digital images came onto the market, with the Fuji DS-P1 arriving in 1988. This is arguably the first true digital camera as recognised today, boasting a 16MB memory card. With the arrival of JPEG and MPEG standards in the 1990´s, the face of the digital camera was changed for ever. Kodak marketed the first readily available digital camera that met all standards, with the Kodak DC40 in 1995.

This article is under GNU FDL license and can be distributed without any previous authorization from the author. However the author's name and all the URLs (links) mentioned in the article and biography must be kept.

Article Source: http://www.kokkada.com

This article can also be accessed in portuguese language from the Article section of page www.polomercantil.com.br/camera-digital.php
Roberto Sedycias works as IT consultant for www.PoloMercantil.com.br

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How To Obtain The Best In Recreational Vehicles

By: Chris Channing..

Purchasing an RV can be a difficult task. The average RV has so many different options to explore and make use of, that it can be tough to choose between the best RV for one's special needs. However, there are certain things to keep in mind when RV shopping that can help narrow down the possibilities.

First to decide is the size of RV needed. After all, buying an oversized RV would just be a waste of money- and buying one too small could make the purchase pointless. Most families will get by with the average RV, while larger families will need deluxe editions so as to accommodate the entire family. Larger options will require more money, on average, so it's best to get the smallest size possible.

Smaller RVs will almost always be absent of a motor, and in effect, they are much less expensive. TVs that include a motor are much more expensive- yet they are better for those who don't have a vehicle in order to tow the RV around. RVs with motors will also be able to be much larger in size than the average RV without a motor intact.

There are many different types of extras for those who do not have to worry about money. DVD players, entertainment centers, and gaming consoles are popular for these types of people. Microwaves, mini ovens, and other kitchen electronics are also quite popular. Lastly, a functional GPS device is quite nice to have.

Competitive pricing is something to seek out when obtaining an RV. Mentioning to dealers that one is planning on visiting other locations for RVs can slash off hundreds or thousands of dollars in the end. But just don't bluff- actually take the time to go around visiting multiple dealers so as to find the best deal, with the best payment options, and the best feature sets.

Another good way to get a great deal is to buy the RV used. Buying a used RV can be a tricky task, and will require much test driving to ensure there are no problems with it. Try to get as much testing time in, as RVs have many aspects that need to be tested in order to make a final decision. It's also possible to get a great deal over the Internet, where websites and auction resources commonly sell RVs for incredibly low prices.

In Conclusion

RVs are a sheer joy to have when looking to vacation somewhere. They can be rather pricey, but purchasing one can help cut out expensive hotel fees and other travel related fees. If one is looking for the ultimate getaway experience, shop around and find as many sources of RVs as possible before deciding on a final RV to opt for. Doing so will ensure that consumers get the best deal for the best benefit.

Article Source: http://www.rightarticle.com

Used RVs | RV Manufacturers


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Beaches – the best way to discover San Diego!

Submitted by David

One of the biggest attractions in San Diego is its sun kissed sandy beaches. We know that San Diego is home to many of the world’s most famous beaches but which ones are the best? Read on to find out more about the famous beaches of San Diego and all the exciting stuff you can do there. Also find out how to look for good quality budget hotels and motels in San Diego.

The sun-kissed breathtakingly beautiful white sandy beaches are perhaps the best known landmarks of San Diego. The dazzling stretch of sand, the open blue sky, and the rolling foaming waves of the ocean make San Diego a uniquely magnificent tourist attraction.

Some of the famous beaches in San Diego that you can’t afford to miss are:
- Blacks Beach
- Boneyard Beach
- Coronado Beach
- Cardiff State Beach
- Del Mar City Beach
- Imperial Beach
- La Jolla Cove
- Mission Beach
- Moonlight Beach
- Ocean Beach Dog Beach
- Windansea Beach

In any of these beaches of San Diego, you can relax in the picturesque surroundings and enjoy the salubrious climate year round. In fact, beaches are a source of pride and joy for both first-time visitors and life-long residents.

Apart from being the dividing line between land and sea, San Diego’s beaches offer much more excitement than merely swimming or sunbathing.

Major highlights of the beaches in San Diego:
Walking: If you enjoy walking on the sandy seashore, Mission Beach is the right choice. It is one of the beaches in San Diego
where you can experience the best of beach life. The paved boardwalk that runs
between the houses and the sandy seashore is the busiest during the afternoon.

Volleyball: An interesting volleyball match in a crowded beach is a common practice. No matter whether you want to play the game yourself or just want to watch others playing it, Mission Beach in San Diego is the place where you can enjoy both. At the southern part of Mission Beach, there are many well-maintained volleyball nets.

For Kids: Coronado Beach with its clean sand
and gentle ways is the favorite amongst kids. The place remains colorful all
throughout the year with various activities going around for kids. Parks like Glorietta Bay Park and Spreckels Park are quite popular among kids.

For Dogs: Most of the beaches don’t allow pets but there are some exceptions in San Diego. The Ocean Dog Beach and Del
Mar's Dog Beach are two popular beaches where dogs are allowed to run free the way they like. People love to come here with their pets.

Amusements: At the Belmont Park located in Mission Beach, one can enjoy thrilling rides at Great Dipper which is a classic carousel . Here one can enjoy swimming in the largest indoor heated swimming pool of Southern California.

Sandcastles: At the Imperial
Beach, sand castle competition is a common practice. However, it need not be only a child’s sport. It is fun and interesting to see the “experts” build sand castles in San Diego’s Imperial Beach. There are many people who come here to try their hands at sand castle building.

Surfing: For visitors who are quite acquainted with surfing tactics, they would love to be at Windansea, which is one of the best surfing beaches in San Diego.

This is just a glimpse of the famous beaches in San Diego. Apart from these beaches, San Diego has dozens of attractions, activities and things to do. So, it’s obvious that to discover and enjoy San Diego one needs a leisurely holiday.

However, it is always important to stay at a San Diego hotel from where commuting
to to the beaches and of course, San Diego’s various other tourist attractions is easy. There are plenty of budget hotels and motels in San Diego, California.

Tourists who would like to keep within a budget need not hunt for cheap motels here. The budget hotels in San Diego provide world-class services at budget rates and also offer attractive vacation rentals and packages. It is better to look up a good quality budget hotel in San Diego which is within a few minutes of distance from its white sandy beaches.

Article Source: http://www.bigarticle.com/

About the Author : David Miller is a well-known travel writer who also travels a lot. He writes articles on san diego lodging and san diego vacation rentals which were published on various journals and magazines. Many of his writings have already been published online and offline.

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Camping Stores

By: Monica Weise

It is a special camps offered during summer for kids, children and adults. Summer camps satisfy the requirements of the people around the world. Summer camp come up with special and different kinds of summer programs and the people seems to enjoying the special programs offered. Overnight camps, children camps will be very interesting and almost every student participating will be enjoying. Overnight adventures can be enjoyed by girls, boys and teens and coed camps are also offered in the summer camps. Children camps are special camps which should be taken by the children during their holidays.
If you are into camping, then Camping World is a store that you would be familiar with. If you are not, then you are missing out big time. Simply put, camping World is in our opinion the worlds best and largest camping store. Camping World is privately owned with its head office based in Kentucky and boasts a chain of 70 stores right around the US and has a commanding presence online as well. They claim that they are the biggest trader of parts for RVS and who could argue with them. If camping is your thing, then you owe it to yourself to visit one of their stores. People from all over the US have reported that once they have been to one of the Camping World stores, they usually do not have to go anywhere else as the store meets all their shopping requirements for camping.
The Beginning
The first Camping World store opened for business in 1966 at Beech Bend Park. A very popular camping site at the time, it was also used as an amusement park. David Garvin, who was the son of the original owner, took a gamble by opening the store fully stocked with camping equipment and other general camping gears. The store was an instant success and with David Garvins strong marketing skills, the store began to grow each and every year. Finally in 1997 Camping World was bought over by its current owners, Affinity Group Inc.
Camping World Today
Camping World today has a huge presence both online and offline and has also become one of Americas biggest if not the biggest supplier of camping equipment. If you would like to make your purchase online, take a quick cyber visit to their website. You will find every product related to camping each listed under their respective category.
Everybody that loves camping has his or her own individual story to tell. Choosing camping equipment is also a somewhat personal exercise and no matter what you have planned, you can probably do with all the suggestions and help from the friendly staff at Camping World to make you camping experience even more special. Even if you were planning your very first camping trip, the wealth of camping knowledge from everyone at Camping World would surely be great help to any novice.
Outdoors Section
Camping World also has an outdoors section where several different products for your RV can be found. RV steps, mats, ladders, chains and every other piece of equipment that is RV related right down to flotation devices can be found in that section. They also cater for your pet by stocking different pet carriers. You name it they have it.
Camping Accessories
If any item is camping based or to be used outdoors, then Camping World will have it. If you are planning to build a campfire, then Camping World has got the items to make that happen for you. If you were worried that you will be bitten to bits by insects then you would be able to choose from a wide range of insect repellents. You name it they stock it. It also goes without saying that you will find your multitude of tents to choose from, countless shades of all shapes and sizes, first aid kits and even wireless weather stations. All you need to do is find a perfect camping spot and pay a visit to Camping World and let one of their friendly staff assist you.
Different programs will be available in the overnight camps and the camps will be more exciting, educative and more useful for children, kids and adults. Educational camps, outdoor camps are offered for reasonable and competitive price consideration and with the help of the experience and knowledgeable professionals and experts. The main purpose of creating summer camps is to develop the creativity and extra activity of the kids, children and adults and to learn skills and knowledge in the field. This kind of activity develops self confidence, friendly relationship among the people.

Article Directory Source: http://www.1articleworld.com

For more info on camping checklist, go to www.MiserlyMonkey.com.

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Luggage, Travel Accessories and Other Holiday Essentials

By: Matt Franks

Ok, so you’ve booked your two weeks holiday. You’ve confirmed your hire car collection from the airport, your boss has confirmed your annual leave and you’ve arranged for your neighbor to feed your cat and water your plant. Now all you need is to sort out your luggage, travel accessories and other holiday essentials. An enterprising company could use travel accessories to their advantage. Why not look into the different types of travel accessories available, and choose one to promote your business? They make great gifts, and anyone would appreciate getting some.

It is a good idea to make a list of all the possible things you will need for your trip, including your luggage and travel accessories. This will obviously depend on where you are planning to go, the weather at your destination, and what you are planning to do while you are away. Two weeks lazing on the beach is going to require very different travel accessories from a winter sports holiday or two weeks backpacking in the Andes.

The luggage you take with you will also be different depending on if you’re going to need a suitcase or backpack, for example. There are hundreds of different luggage solutions available to buy now. And, as many people are travelling more often, businesses are using travel related pieces as promotional tools.

A good choice for the holiday traveller is the new type of hard suitcases with wheels. Despite the large sizes that you can buy them in, they are easy to transport due to their wheels. So if you’re the kind of person who always packs enough for two months away when you’re just going for a couple of weeks, then these could save your back from a lot of damage! They are also very sturdy, which is good news when they are being thrown around by airport baggage handlers.Luggage and travel accessories are all great branding tools for businesses, as they are commonly used and many pieces are highly visible by others.

You can often buy matching travel accessories to go with your luggage, including whole sets of hand luggage, a wash bag, comb, brush and toothbrush. You may also need to take travel accessories such as a travel iron, electric plug adaptors for the country that you are visiting and an inflatable pillow and eye mask for the journey. If you fly a lot then it might also be worth investing in some travel scales to weigh your luggage so you can avoid the fear of extra baggage fees.

Other travel accessories that are real holiday essentials are items such as insect repellent, sun tan lotion, after sun lotion, lip balm, mosquito nets, luggage tags and straps and waterproof clothing.

With the rules on safety and security on aircrafts and at airports constantly being reviewed and updated it is always wise to check with the airport that you are flying to and from regarding their current rules on permitted luggage and travel accessories. This includes the size and weight of your luggage in both the cabin and the hold and permitted travel accessories.

One final tip is when packing your travel accessories into your luggage think about what you will need for your journey and put it in your hand luggage. Also think about what you are permitted to take into the cabin with you and pack accordingly. For example, if you have your wash bag in your hand luggage then remember to check the rules on allowed travel accessories and items such as scissors and tweezers, and put them into your hold luggage.

Author Resource:- Matt Franks is director of Fluid Branding (http://www.fluidbranding.com), the UK's largest supplier of Promotional Travel Accessories and Branded Items. For Eco Friendly promotional products, including Recycled, Organic and Sustainable items visit Eco Incentives at http://www.ecoincentives.com

Article From Content Edge | Article Directory

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