direct input devices

Question 1

advantages of magnetic stripe readers

Answer 1

-faster data entry than a keyboard
-easily updated
- magnetic stripes are unaffected by water
-error free as no typing is required

Question 2

disadvantages of magnetic stripe readers

Answer 2

-stripe can be damaged and become unusable
-cant be used over long distances
-magnetic stripes are easily cloned

Question 3

advantages of magnetic ink character reader (MICR)

Answer 3

-Less error(no typing needed)
-characters cant be changed
-characters can be read even when written on

Question 4

disadvantages of magnetic ink character reader(MICR)

Answer 4

-more expensive than using a keyboard to type manually
-limited amount of characters can be read

Question 5

advantages of optical mark readers(OMR)

Answer 5

-quick method of inputting data
-less chance of errors

Question 6

disadvantages of optical mark readers(OMR)

Answer 6

-forms have to be completed correctly

Question 7

advantages of optical character reader(OCR)

Answer 7

-faster data entry method compared to typing
-less chance of errors compared to typing

Question 8

disadvantages of optical character reader (OCR)

Answer 8

-not as accurate as OMR
-cant read handwritting

Question 9

advantages of barcode readers

Answer 9

-faster than typing in codes using keypad
-databases can easily be updated

Question 10

disadvantages of barcode readers

Answer 10

-barcode can be unreadable or missing
-is an expensive system
-barcode can be swapped