An electronic file can be compressed so that it takes up less disk space for easier sharing by using one of several file compression softwares. WinZip, WinRAR, 7-Zip, PKZip, StuffIt are some of the most common softwares. The procedure for compressing a file depends on the software used but generally it is menu driven from the software and is done just by the click of the computer's mouse.
Yes, it will compress files, by how much depends on the file type and structure.
You must first compress the files as a .ZIP file. When you compress the file, under the security tab, you can password protect it.
A compress information
A compress information
Text, or .txt
text or .txt
merg,splitting,compress,decompress the file
It is called Compress.
gzip filename ...
i believe (not quite sure) that it is at the application layer (layer 1)
The usual approach is to create a 'tar' file first of the directory and then compress the tar file. This is also safer because it leaves the original directory intact.
Just compress it by right clicking on the item you want to be a zip file