WHT IS DECODE and ENCODE?

Answer 1

It's a process of altering the parameters of something (encoding) for a specific reason (smaller size, easier to work with, fits in a given space) and then reconstituting it on the other end (decoding).

Most common examples include MPEG/JPEG compression for pictures, music files and videos. In the encoding process "redundant" information, such as an all blue sky of the same color, is turned into a map representing the boundaries and a single color sample. This way instead of saving millions of the same blue pixel color into a file you save one sample and an area map of where to place this one color, which is then reconstituted on the other end when the photo program opens the file and extracts this information to tune one blue pixel back into a million of them.

Dolby is also like this. High frequency sounds are made even louder during the encoding process and when you decode (play back with the Dolby switch on) they are reduced, along with the high hiss from the tape. Unfortunately most people like the billiance of this high recording so they turn their Dolby switch off and don't decode!

Analog video signals are also encoded and decoded, as are radio waves.

For VHS the picture image is stepped down from a very high frequecy to a very low frequence to save space. The color is then encoded on the sync signal as a different wave form. During decoding a filter strips this color information away, the picture is stepped back up to full wave strengh and all elements are combined.

Color TV is encoded on the back side of the black and white picture wave. A black and white TV set can't sense the color signals and sees only the black and white image. A color set uses filters to extract these signals and then uses a sample burst to set the intesity on the decoding side.

Answer 2

Encode puts a message into code so it can't be read except by people who know the code.
Decode puts a message into clear text so anyone can read it.

From Wikipedia: http://en.wikipedia.org/wiki/Encode
"In communications, a code is a rule for converting a piece of information (for example, a letter, word, or phrase) into another form or representation, not necessarily of the same type. In communications and information processing, encoding is the process by which a source (object) performs this conversion of information into data, which is then sent to a receiver (observer), such as a data processing system."

"Decoding is the reverse process of converting data, which has been sent by a source, into information understandable by a receiver."

Answer 3

Encode is to change data which might not be understandable to all. Decode is to doing the reverse to get actual information

Answer 4

decode is to convert a code into understandable language and encode is to convert in to a code form

Answer 5

To "decode" is to translate text out of code, to "encode" is to translate text into code.

Answer 6

Here is an example.. I will encode the word hello in binary

hello = 01101000 01100101 01101100 01101100 01101111

To decode it is just the reverse..
01101000 01100101 01101100 01101100 01101111 = hello

This is the easiest way to transfer information from one place or application to another.

Answer 7

TO DECODE IS TO DECYPHER,CHANGE FROM CODE TO NORMAL TEXT.
TO ENCODE IS TO (MAKE A) CYPHER, CHANGE FROM NORMAL TEXT TO CODE .