Which is a con of display devices?

• A. Not permanent output
• B. Immediate feedback to user
• C. Easy to update content
• D. Can be formatted for visually impaired

Answer: (A)

The main drawback of display devices is that their output is not permanent. Information shown on a screen is temporary and can disappear when you change the display or power is turned off, so it isn’t suitable for long-term storage or reference unless you save or print it. This contrasts with advantages like immediate feedback—where the display instantly shows responses to user actions—easy content updates, and accessibility formatting for visually impaired users, all of which are strengths of display technologies. So, the downside is the lack of permanence: you generally need to rely on saving to storage or printing to keep a record.