Technology of 3D TV

The technology is moving at a very fast pace and changing its façade day by the day, getting revolutionized day by day in service of mankind. Hence when it comes to the entertainment aspects, the pace of technology is exponentially high due to the lust of mankind to be entertained, and therefore the advancement in digital displays has seen tremendous pace in the past decades in the quest of jumping to the higher step of possibilities and perfection. By all means the present day 3D TV is the result of the aforesaid phenomenon. The humans have been able to witness the revolution from the 2 dimensional displays to 3 dimensional. Also the research is underway which has partially been successful where 3D display can be enjoyed without glasses and wide variety of angles, though until now 3D TV technology without glasses are still a dream.

How 3D TV Works ?

The principle behind the 3D tv technology is based on a biological phenomenon pertaining to eyes known as the parallax. Human eyes are placed at a distance on the face and they receive different visuals and the inherent distance between the eyes is covered by the slight overlap though different images received by the two eyes due to difference in angle of reception of the two eyes. Hence the human brain then establishes the link between the images received by the two eyes, joins them into one single image.

This is a natural phenomenon, but normal tv was a two dimensional display and converting that two dimensional display into an artificial 3d display needed a trick to be played with the mother nature and that trick was to present a bit different image to each of both human eyes  and that is achieved by the use of 3d TV glasses, where the signals of the images are displayed in all directions and the 3d TV glasses thus play their part by presenting only the wanted signals to each eye, and eventually a 3d image is perceived in the brain. This kind of 3d TV technology is known as the passive 3d TV technology. This is how 3d TV works.

3d Images Without Glasses

On the other hand in order to achieve the 3d display without glasses, the glasses free 3d TV technology is being worked upon where control of the light will be directed from each pixel of display, in order to achieve different patterns of light to be received by each eye and ultimately the humans can see an active 3d TV.

Advantages of TCP over UDP

I earlier explained advantages of UDP over TCP, find out below the advantages of TCP over UDP.

1. Data packets which get lost during transmission are sent again, thus ensuring complete information is sent.

2. TCP ensures no duplicate data is sent, hence also saves bandwidth.

3. Data is sent in the same order in which it is sent.

4. TCP breaks up data into Packets automatically for you.

Recommended Use of TCP

TCP is best used for sending emails (IMPAP/POP/SMTP) where every letter and word of the message must be sent and received. TCP is also important to use for FTP where file downloading and uploading requires every information of the file to be completely sent/received. In a secure connection, like SSH, TCP is also necessary where acknowledgement of sensitive information being fully sent and received is required.

These were the advantages of TCP over UDP. Also read:

Tags: Advantages of using TCP protocol over UDP, advantages of TCP over UDP

Earlier I explained functions of TCP/IPadvantages of UDP over TCP, and advantages of TCP over UDP. Find here the real life uses of both TCP and UDP.

Example Uses of TCP Protocol:

  • Internet (HTTP)
  • Secure Shell (SSH)
  • Email (SMTP/IMAP/POP)
  • File transfer (FTP)
  • Internet banking
  • Remote access to network devices
  • SMS

Uses of UDP protocol:

  • Audio and video streaming
  • Voice over IP (VoIP)
  • Online gaming
  • Trivial File Transfer Protocol (TFTP)
  • Domain Name System (DNS)
  • Radio (AM)
  • WiFi
  • Video conference

These were the real life uses of UDP and TCP. There may be more uses of TCP and UDP, but with the examples above, I hope you now have understood the role of TCP and UDP well.

A keyboard acts as a mandatory hardware component in the computer system. In the earlier times when a device like a mouse or light pen was not present, keyword was the only source available to input data. Different types of keyboards are available that are chosen by users according to their preferences and requirements. These are mentioned below:

Lightened Keyboards
These key boards are very helpful when there is lack or no availability of light. As the user presses each key, a light glows that makes the particular key apparent. For instance if the user presses the letter “A”, a light will glow at the base of the keyboard. These key boards are very attractive and are mostly preferred by teenagers and students.

Wireless Keyboards
These keyboards provide the factors of convenience and compatibility to the users as no wires are required. Wireless key boards work with the help sensors instead of wires and the users can sit on a comfortable couch instead of a hard chair facing the computer screen. The duration required to display the entered data on the computer screen is much shorter in these key boards as compared to the traditional ones.

QWERTY keyboards
Using keyboards on continuous basis can be damaging to the human wrists and finger joints. The bone joints loose calcium content and become brittle with the passage of time. QWERTY key boards are designed to minimize this effect. The layout of these keyboards is such that minimum stress is exerted on the hand joints. According to medical researches, QWERTY keyboards and quite effective in preventing the weakening of hand joints.

MINI keyboards
These keyboards are smaller as well as lighter than a normal keyboard. They are similar to a laptop keyboard in terms of appearance and are preferred by laptop users mostly. It is hard for frequent laptop users to work on a desktop system. However a MINI keyboard makes the task comparatively easy. These keyboards are mostly wireless to provide a higher level of comfort.