Computers use checksums to check for data transmission errors; basically, they count the bits in a block of data and compare the number to a previously generated sum. If the two match, all is well; if not, something's gone wrong and it's time to look for data errors. Checksum verifiers are handy utilities that can scan software to verify its integrity. Marxio File Checksum Verifier calculates and verifies the checksums of programs downloaded from the Internet. It's free, compact, and portable, making it especially useful to system administrators and others who manage more than one machine.
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