Direct Data Entry Devices

Question 1

What is a Magnetic Stripe Reader

Answer 1

• Magnetic Stripe Readers
  o Read information from magnetic stripes on cards.
  o Uses: ATMs, security access.
  o Advantages: Fast, error-free, secure, robust.
  o Disadvantages: Susceptible to magnetic damage, requires physical contact.

Question 2

What is a Contactless Card Reader

Answer 2

• Contactless Card Readers
  o Use radio waves to read card data from a short distance.
  o Advantages: Fast, secure, no physical contact needed.
  o Disadvantages: Expensive, vulnerable to unauthorized scanning, transaction limits.

Question 3

What are CHIP and PIN readers

Answer 3

• Chip and PIN Readers
  o Read chip cards; require PIN entry for security.
  o Advantages: Secure, robust.
  o Disadvantages: Risk of PIN exposure.

Question 4

What is MICR (Magnetic Ink Character

Answer 4

MICR (Magnetic Ink Character Recognition)
o Reads special ink characters, mainly on cheques.
o Advantages: Secure, reduces errors.
o Disadvantages: Limited characters, costly.

Question 5

What is OMR (Optical Mark Recognition)

Answer 5

• OMR (Optical Mark Recognition)
  o Reads marked areas on forms, e.g., exams.
  o Advantages: Fast, accurate.
  o Disadvantages: Requires carefully designed forms.

Question 6

What is OCR (Optical Character Recognition)

Answer 6

• OCR (Optical Character Recognition)
  o Scans text and converts to digital form.
  o Advantages: Fast, reduces manual errors.
  o Disadvantages: Poor with handwriting, accuracy varies.

Question 7

What are RFID (Radio Frequency Identification) Readers

Answer 7

RFID (Radio Frequency Identification) Readers
o Use radio waves to read data from tags.
o Advantages: No line-of-sight needed, can read from distance, fast.
o Disadvantages: Collisions, jamming, expensive, security risks.

Question 8

What are Barcode Readers

Answer 8

• Barcode Readers
  o Scan barcodes on items, commonly used in retail.
  o Advantages: Fast, improves data safety, reliable technology.
  o Disadvantages: Expensive, can be damaged, not foolproof.

Question 9

What are QR Code Readers

Answer 9

• QR Code Readers
  o Scan QR codes, which hold large amounts of data.
  o Advantages: Easy access to websites, effective advertising, stores more information.