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Binary files are used to store computer data and require a checksum algorithm for validation. This is used in business software, email attachments, and data entry. Hashing algorithms assign numerical values to files for error-checking. Checksum errors occur when file sizes differ. A checksum function is performed when a computer is turned on to compare BIOS values.
Computer data is usually stored in binary files, which are located on a computer file system. When data is saved to a computer, it is converted into a binary format. This conversion process requires validation of a file’s size to ensure that the entire file was saved correctly. A checksum algorithm is a mathematical function that checks files for corruption before they are saved.
Most business software applications allow users to create and save data files. This includes many Microsoft Office® products. When a Word® document file is saved to a computer, the Word document is converted into a binary file. This conversion process requires a checksum algorithm to verify that it worked correctly. If this function detects an error, the program prompts the user with an error message.
Many users share data files between computers using email. When a file is shared in an email, it is usually sent as an attachment. This attachment process uses a checksum algorithm to verify the successful transmission of the file. The email system will notify the user if an error is returned from the algorithm. This file transmission device ensures that a file is sent without errors.
Hashing algorithms are mathematical programs that convert data into a binary numeric value. This is similar to the checksum algorithm. The main purpose of the algorithm is to assign a numerical value to a file. The value is based on the size of the content within the file. This value is used as an error-checking device during the binary conversion process.
Data entry is another area where the checksum algorithm can be used. This feature provides data validation on specific data. This process will ensure that the correct format and data types have been entered into specific input fields on a screen. For example, the checksum algorithm can be used to validate a social security number.
A checksum error is the error that occurs when a checksum function fails. This usually occurs when a comparable file size value is different than expected. A checksum is typically used for data validation, storage, and file transmission.
When you turn on a computer, a checksum function is performed. This feature compares the BIOS (Basic Input-Output System) values of the booted computer with previously saved values. If the numbers are different, a warning message is presented to the user identifying a configuration change. This is an example of a checksum error.
