Explanation:

- Laser Printer

- Does not print one character at a time.

- Uses a laser beam to produce an entire page image on paper.

- Drum Printer

- Works as a line printer, not character-by-character.

- Uses a drum to print entire lines simultaneously.

- Chain Printer

- Also a line printer.

- Uses rotating chain elements for printing lines of text.

- Daisy Wheel Printer

- Correct Answer

- Prints one character at a time, like a typewriter.

- Known for high-quality printouts character-wise.