A Brief History Of Television

One of the most frequently asked questions related to television is, `Where`s the remote?` When the first simple television (televisores) was built in 1928, it did not come with a remote. The entire wonder consisted of a disk, a light (which tended to make the images orange in appearance) and a moderate need for electricity.

By the 1930`s, televisions (televisores) had evolved to all electrical components. The typical screen was about 6X8 inches and generally was mounted in a much larger cabinet. By the late 1930`s televisions were made by several manufacturers in the United States and throughout Europe and the Soviet Union.

World War II slowed recreational television progress while turning that technology to the necessary military communications. Many communication devices were made accessible using television cable. Unlike the Viet Nam War, civilians were not able to watch the battles that had been fought and radio was still highly sought for news and entertainment.

By 1945, many American families believed they had suffered enough hardship from the war and rewarded themselves with televisions (televisores). The pictures were of a better quality than in earlier televisions and only in black and white. Programming other than news had caught on and gradually, game shows, sports and other programs of interest were available.

Technically, the ability to produce programs in color occurred in the late 1940`s, however it was in the mid 1960`s that major broadcasters began to produce their programming in color. Early colored televisions did not provide exact color replication. One often noticed unnatural tint which was correctable by manipulating the `tint` dial on the television.

For those of us old enough to remember the assignation of John F. Kennedy, we will also remember his lying in state and his funeral and burial all shown on major broadcast stations. This was the first major event in American history that could be viewed by people all across the United States on television (televisores). Despite miles of separation, people in the USA felt more connected to one another because of this new technology.

The 1970`s brought about the greatest surge of television purchases. Major appliance stores (Sears and others) had banks of televisions on display. Daytime television and `Soap Operas` became favorites of many stay at home mothers. Game shows became more plentiful as did movies which introduced us to favorites such as John Waynne, Robert Young, `Beaver Cleaver` and many, many more. These were idyllic families, devoid of abuse, less than charitable language, arguments, and other behaviors evidenced in today`s homes and societies. Television commercials changed the `tools` of childhood which previously had been invented and make believe to Barbie and Ken dolls, talking bears, more sophisticated bicycles and wagons and the like.

Satellites influenced further changes in television (televisores) in the mid 1980`s. Pay for view programming became possible through the encryption of programming and transmitting via cable and only to viewers who had the additional equipment to view such programs.

Today, digital and satellite television (televisores) deliver the clearest images to the viewer and provide several hundred channels from which to choose. Televisions have grown from 6x8 picture tubes in huge cabinets to slim instruments sitting atop pedestals. Large screen television gives the appearance of football players kicking off in one`s living room and monster trucks driving directly at the viewer. Television today may be accessed from one`s computer as well as by cell phone.

The Advantages Of Digital Camera

The digital camera has totally changed the way we take photographs; it has made the greatest impact in the world of photography since the Polaroid Instamatic camera. It is a great accessory to the present day computer; photographs can be taken in an instant and loaded on to the computer, and emailed to a friend or a relative in the space of a few minutes. If you add a photo quality ink jet printer to your computer, you will not need to develop a roll of film ever again.

The digital camera started out from a single 1 mega pixel quality photo; now they come in over 10 mega pixels with huge print sizes, with amazing photo quality.

You may find it tough to decide which digital camera will fulfill your needs the best. You will have to undertake a bit of research, to help you to find the best camera, with the proper lenses, filters, external flash, tripods - everything you need so that you can start taking photographs, like a professional! Just spend a little time and figure out how you will be really using your digital camera, before you purchase one. Will it be for daily use, for special occasions like birthdays, family reunions? Will the price of the digital camera make a lot of difference?

The digital camera is also part of a new field of photography, in which you use a green or a blue background, and with special software like Corel Paint or PhotoShop, you can do wonders and create a new imaginative background. You can edit out the background and put in its place any of thousands of prepared indoors or outdoors backgrounds. There are multifunctional digital cameras that can take not only photographs but also video and sound. Digital cameras can be categorized as still cameras, video cameras and professional modular digital camera.

Since the market is so full of different models of digital cameras, you have to select a digital camera that will suit your needs. They come in different price ranges, so you will not have any difficulty selecting one that will fit into your budget. Before buying a digital camera, your first consideration has to be the resolution. A digital camera with a higher resolution than what you require can prove to be a waste of money, processing power and storage. A large number of pixels do not necessarily mean a superior image, so be cautious. A lower resolution digital camera is the best for posting images to the web, to view images on your computer, or to email files. You don`t always need a high capacity memory card, a small capacity memory card can also give high quality performance.

A digital camera can use its own battery and charger, or it can use double A size batteries. A digital camera may connect to a computer for data transmission. The most usual method of connectivity is USB, but Fire wire port or Blue Tooth are also used. Some digital cameras can connect to computer networks wirelessly.

One of the good things about a digital camera is that you do not have to spend anything on developing the film at a local store, nor do you have to drive to the store and back. A digital camera gives you an instant feeling of gratification when you view the pictures you have taken on the viewfinder or on your personal computer. You also have the full freedom of editing your photographs until you are fully satisfied with them!

You can select, save or delete photographs without any cost involved. The photos are stored hundreds of media cards, so you can take as many pictures as you wish before you run out of space.

LCD TV - The Latest In Viewing

Liquid Crystal Display is all about flat panel television technology. The technology of liquid crystal display has penetrated our everyday life in everyday things like wristwatches, mobile phones, calculators, computer monitors and high definition television. The use is growing rapidly and sales of LCD TV are expected to exceed 4 million in America alone.

There are some distinct advantages of LCD panels over other kinds of display technologies. They are slimmer and hardly go beyond 3.5`` in depth. These are lighter also and best of all they draw less power - only about 60% of the power consumed by plasma displays. LCD televisions do not spew electromagnetic waves that are harmful.

There are drawbacks of course - viewing angle is restricted, contrast ratio is limited and time of display response may cause concern. The biggest frown of all is caused by the price. Although it is falling but still it is considerably higher than its plasma counterpart.

LCD displays comprises mainly of sheets of polarized glass sheets - two in number. A liquid crystal solution is sandwiched between these. These liquid crystals are very specific that causes them to act as shutters that open or shut out entry of light as the need arises depending upon flow of electric current. This current passing through the liquid crystals is regulated by voltage that is applied between the glass sheets through the electrodes that are transparent. These form a network having rows on one direction of the panel and columns on the other side representing the pixels or picture elements.

What are these liquid crystals? Matter can be found in three states - solid, liquid and gas. Nevertheless there are substances that exist in a state that is neither liquid nor solid at any one point of time. The behaviour of these molecules is also peculiar. They keep to their orientation like those in a solid and yet they shuffle around taking up various positions like the molecules of a liquid. Thus these liquid crystals can be termed neither solid nor liquid though they have more of an affinity for the latter - that is the liquid state.

There are various types of liquid crystals with each having its distinct properties. Those used in LCD panels are termed nematic-phase liquid crystals. The molecules are arranged in a particular fashion having distinctive pattern.

LCD display systems are of two types - passive and active matrix. The former is more complicated, produces the best pictures and consequently the price also goes up. During the manufacturing stage bad-pixels pose a serious problem. Innumerable controlling transistors are required on the glass substrata to control each sub-pixel. A typical wide screen panel will require 3.1 million transistors. Any one faulty transistor cannot be replaced and are known as dead or stuck pixels. If one is permanently off then a black spot will show and if it is on then a white spot will show. If it crosses a certain number the whole unit will have to be discarded.

It was during the early 2000`s that LCD flat panels took over the television market from the typical CRT`s. The basis of the technology is founded on the characteristics of polarized light. The thin semi liquid crystal gel trapped between two slim polarized sheets is divided into pixels.

There is hectic activity to overcome the technological difficulties to make the set affordable. So the LCD TV has to be made affordable to hit the headlines of success.

Mp3 Player, Mp4 Player And Ipod

The invention of the MP3 player, with MP4 player and iPod following it, has revolutionized the music industry. These lightweight, reasonably priced, portable music gadgets are almost everywhere you look. Earlier they used to be the obsession of the geeks, nerds and the electronic enthusiasts but today these players are a must have consumer electronic item for almost everyone whether it is the stay at house mom, working business executive, fitness freak joggers, teenagers or even the bored granddad.

MP3 player has personalized music like never before. The MP3 craze has reached its peak with people wanting more and more features in their players. What they want is to download their complete collection of music in their player. You can download and store more than thousands of songs inexpensively into your device and listen to it whenever you want; whether at office or at home or tolerating a boring lecture or even struggling past a heavy traffic jam. A music player seems to be in every hand nowadays. These are wireless, portable, wonders of music and entertainment that can store, systematize and play music on demand.

The three main types of digital audio players are MP3 CD Players that can play both data CDs and audio CDs with MP3 format files, Flash-based Players that are solid state devices with internal media or memory cards type external media and Digital Jukeboxes like the apple iPod and Creative Zen which can read digital audio files from a hard drive. These types of players are the most advanced in technology and have high memory ranging from 1.5 GigaByte to 100 GigaByte.

There is a myth regarding MP3 and MP4 player as Mp4 being a successor of Mp3 player, but these two are different things. Fundamentally, Mp3 is a specific category of audio format while Mp4 is actually a container format. But an Mp4 player can also play Mp3 files besides MP4 format files with complete clarity just like the original player.

The iPod was introduced by Apple Inc. and was launched in October 2001. The varieties of iPod available today include video fifth generation iPod, the small iPod nano and the display free iPod shuffle. You can use Apple`s iTunes software to transfer music of your choice to the devices. An iPod supports and plays MP3, AAC, AIFF, Protected AAC, WAV and some other audio file formats. The Apple iPod also has some additional features like displaying text files, viewing contacts and synchronizing it with the host computer, gaming facilities like the Brick, solitaire, Parachute and Music Quiz. A lot of accessories have been made for the iPod such as sound recorders, wired remote control, FM radio tuners, and cables for enabling TV connections.

iPods have often been criticized due to their short life-span, delicate hard drives.There are also some health risks associated with frequent use of these players which can lead to loss in audio capacity and can also lead to absent mindedness.

All of these music players are portable and use either a semi-permanent rechargeable battery or conventional batteries that can be disposed or recharged. Some MP3 / MP4 players also have additional features like playing FM stations, games, microphone for voice recording, address storage book and etc.

The MP3 player have created a huge mass hysteria amongst some age groups leading to many companies joining the bandwagon to design and market different types of MP3, MP4 players and iPods. It has also given rise to an entirely new industry of downloading sites. This heavy competition has forced companies to find new and innovative use of these players like incorporating features like camera, mobile and etc.

Important Facts About Mp3 And Mp4 Players

Mpeg-1 Audio Layer 3, more commonly referred to as mp3, is a popular digital audio encoding format. A device that is designed to greatly reduce the amount of data required to represent the audio recording, by retaining the sound from the original uncompressed state. Mp3 is an audio-specific compression format. By compressing, certain sounds that cannot be heard by the listener outside the normal human hearing range, are removed. This makes the sound clearly audible to the listener.

The mp3 players have changed the evolution of music. The good old records, eight-track tapes, cassette tapes and CDs no doubt gave the music lovers a good time but none of these earlier music formats provided the convenience and control that mp3 players provide. It is as convenient as keeping it in your hand or pocketing it. You can create personalized music lists and carry thousands of songs wherever you go. Mp3 players are offered in different shapes and sizes.

For those who want to be with the time by possessing the latest gadgets or be the first ones to have them, here is a list of some popular mp3 player brands: Apple, Archos, Creative, Olympus, RCA, Rio, Samsung, SanDisk, Sony and iRiver. Most of these have good amount of storage capacity, screen size, compatable to Apple MacOS X 10.3.4 or later, Microsoft Windows XP SP2 or later, Microsoft Windows 2000 SP4 or later.

Mpeg-4 Part 14, a multimedia container format commonly known as Mpeg-4. It is a device that stores digital audio and digital video streams, especially those defined by mpeg. Subtitles and still images are also stored. Mpeg-4 Part 14 allows streaming over the Internet. The filename extension for Mpeg-4 Part 14 files is .mp4, thus the name mp4. Devices that play .mp4 files are referred to as mp4 players.

The evolution of mp4 player devices has lead to providing more features such as fm tuner, voice recorder, email, and Internet browser capability. As it is capable of delivering audio and video at the same time, mp4 devices can offer a wide range of interesting features, such as web browsing, email, instant messaging, video and music download, Bluetooth wireless technology, digital camera and others. Not to forget the game capability, voice recording and multiple language options. The storage capacity is amazing which can start from 256 mega bites up to 40, 60 and up giga bites.

Mp4 is the next step in the evolution of music after mp3. The difference between mp4 and mp3 formats is that, mp4 devices hold both audio and video files. As for the mp3 it only holds the audio type file.

iPod is a brand of portable media players designed and marketed by Apple. The iPod name has become synonymous with mp3 or mp4 players as it is the most popular brand and holds the biggest share of the market. Devices in the iPod range are primarily digital audio players. These devices can be used to store an entire music library. This is not all, it can also be used to view and transfer photos, videos, games, and calendars to the models that support them.

With PDA-like functionality, text files can be displayed, while contacts and schedules can be viewed and synchronized with the host computer. It comes with built-in games like Brick, Parachute, Solitaire, and Music Quiz. It is condensed, brawny and frivolous, and is easy enough to carry along in your palm, in your pocket, or purse.

The storage capacity varies from 512 mb to 80+ gb. It has a powerful 60 mw amplifier so it can deliver audio as loud as you want. It also has a 20 MZ to 20 khz frequency responses. This means, you can hear distortion free music at the least pitches. iPod is a very handy mp3 mp4 player indeed!