Question

Q1.(a) Write down the most appropriate input device which matches the

following descriptions:
[4]
(a) This is provided with a laptop to imitate the functions of a mouse.
(b) This is not a mouse but is used to manoeuvre objects around the screen in computer video
(c) This is used to type in text.
(d) This is used for direct input of hard copy images
(b) Tick whether the following statements are true or false
a) Answers to multiple choice examination papers can be read using an
b) Optical Mark Reader.
c) MICR reads the information on a credit card.
d) The chip on a credit card is read by a PIN reader
e) An RFID chip can be used to track stock.
1
Q2. When a person buys goods in a supermarket they have to pay at the
checkout.
[2]
(a) Identify two input devices used at the checkout.
(b) Identify two output devices used at the checkout
Q3. State what is meant by OCR and OMR. Give their example of uses. [4]
Q4.List some advantages of Magnetic stripe reader.
[3]
Q5. Write some advantages and disadvantages of touchscreen over keyboard.
[3]
[4]

Answer 1

This response covers various aspects of input and output devices in computers and technology.

Step-by-step explanation:

Q1.(a) Input Devices:

1. (a) Trackpad
2. (b) Touchscreen
3. (c) Keyboard
4. (d) Scanner

Q1.(b) True or False:

1. a) True
2. b) False
3. c) True
4. d) False
5. e) True

Q2. Input and Output at Checkout:

1. (a) Barcode Scanner, Cash Register
2. (b) Receipt Printer, Customer Display

Q3. OCR and OMR:

OCR stands for Optical Character Recognition, which is used to convert printed or handwritten text into digital text. An example of OCR is the process of scanning a printed document and then editing it on a computer. OMR stands for Optical Mark Recognition, which is used to detect and analyze marks made on specially designed forms, such as multiple choice answer sheets.

Q4. Advantages of Magnetic Stripe Reader:

• Easy to use and understand
• Widely accepted and compatible with various systems
• Relatively inexpensive

Q5. Touchscreen vs. Keyboard:

• Advantages of touchscreen: intuitive, faster input, interactive
• Disadvantages of touchscreen: prone to fingerprints, limited tactile feedback, may require larger screen size

Learn more about Input and Output Devices