A thick client seldom has a hard drive installed

Charles Babbage designed a mechanical computer called the ________

Fill in the blank(s) with correct word

Which of the following statements about antivirus software is not true?

A) Antivirus software is 100 percent effective against malware intrusions. B) Antivirus software uses signature-based recognition and behavior-based recognition to detect malware. C) Antivirus software can detect various types of malware. D) Antivirus software can detect, contain, or eliminate malware.