A dumb terminal can display how many lines of information?

• A. 100 to 200 lines
• B. 20 to 60 lines
• C. 5 to 15 lines
• D. 60 to 120 lines

Answer: (B)

A dumb terminal is just a display device with no processing power—the host computer does all the work. What shows on the screen is limited by the terminal’s own display hardware, not by any smart features. Historically, these terminals commonly displayed on the order of a couple dozen lines, with some models showing more and some a bit less. A range of about 20 to 60 lines covers these typical sizes, including the standard around 24 lines, while the other ranges are outside what classic dumb terminals could regularly display. So the option that fits the common capability of these devices is 20 to 60 lines.