Consider the security cards of hotel rooms to gain access to rooms. Which one of the following input/output devices (I/O devices) is used for this purpose?
[amp_mcq option1=”Optical mark reader” option2=”Scanner” option3=”Magnetic stripe reader” option4=”Cathode ray tube” correct=”option3″]
This question was previously asked in
UPSC CBI DSP LDCE – 2023
Hotel security cards typically use a magnetic stripe on the back which stores information like room number, check-in/check-out dates, etc. The device used to read this information and grant access is a magnetic stripe reader.
Different I/O devices are designed for specific types of data input/output. Magnetic stripe readers are used to read data encoded on magnetic stripes found on cards.