ASCII=American Standard Code for Information InterchangekassaD said:Presentation layer
The Presentation Layer is responsible for the delivery and formatting of information to the application layer(upper layer we discussed before)for further processing or display. It relieves the application layer of concern regarding syntactical* differences in Data representation within the end-user systems.
1.data format and display
e.g. Fonts, tabs and line and page breaks
2.Code
e.g. ASCII*, EBCDIC*, Unicode, HTML
3.code conversion
e.g. HTML to ASCII*
4.text compression and decompression
e.g. WinZip
The presentation layer is also concerned with data encryption and data security.
*ASCII=American Standers Code for Information Exchange
*syntax=Software related to this layer perform
*EBCDIC=Extended Binary Corded Decimal Interchange Core
EBCDIC=Extended Binary Coded Decimal Interchange Core
Edit:just wanted to correct kassaD.
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siravatama.