What are recommended document/card reading devices for detecting shaded marks, storing student ID from cards, and ensuring secure authentication?

Here are the recommended document/card reading devices for the given scenario:

a) Recommend document/card reading devices for:

i. Detecting shaded marks * Recommendation: Optical Mark Recognition (OMR) Reader * Explanation: OMR readers are specifically designed to detect the presence or absence of marks in predefined positions on paper forms, making them ideal for automatically grading multiple-choice answer sheets.

ii. Storing student ID information from cards * Recommendation: Barcode Reader or QR Code Reader * Explanation: These devices can quickly scan and extract alphanumeric student ID information encoded in barcodes or QR codes printed on student cards, allowing for efficient data entry and retrieval.

iii. Ensuring secure authentication * Recommendation: Biometric Scanner (e.g., Fingerprint Scanner or Facial Recognition Scanner) * Explanation: Biometric scanners use unique physical characteristics (like fingerprints or facial features) to verify a student's identity, providing a high level of security and preventing impersonation for attendance or exam access.