A checksum is a string of characters which uniquely identifies afile, a digital fingerprint. Change even a few bytes of a file–forexample, by infecting it with a virus or replacing an old ...

Checksum [via Wikipedia.org]<BR><BR>Essentially, a checksum is a marker that allows you to determine the integrity of a file or piece of data in some context.<BR><BR>For example, if you have a ...

PS Hash is a free tool that calculates, compares and verifies the checksums, content and hashes of .md5, .sha1, .sha256, etc, files using an algorithm.

When you download application installers and other files from the Internet, you may see a verification checksum associated with it. Here is how to use that number.