The correct answer is: B. output controls
Output controls are used to ensure the high quality of computer output. They are used to check the accuracy and completeness of the output, and to make sure that it is formatted correctly. Output controls can be implemented in a variety of ways, such as using checksums, running validation checks, and generating reports.
Computer output microfilm (COM) is a technology that uses microfilm to store and display computer output. COM is used to create permanent records of computer output, and to distribute output to multiple locations. COM is not used to ensure the high quality of computer output.
Voice output systems are systems that produce spoken output from computers. Voice output systems are used to provide information to users who are unable to read or see the computer output. Voice output systems are not used to ensure the high quality of computer output.
Liquid crystal displays (LCDs) are a type of display that uses liquid crystals to create an image. LCDs are used in a variety of devices, such as computers, televisions, and cell phones. LCDs are not used to ensure the high quality of computer output.