The advantages:
Fast or quick
Accurate
Saves on paper
The disadvantages:
Cannot be used to read text directly because only numbers can be coded.
Bar codes are relatively fixed and therefore unsuitable for recording items whose detail keep on changing.
Bar codes can only be read and interpreted by machines but not our naked eyes.
isaacmuthini answered the question on December 5, 2017 at 07:12
-
Define MICR and state its use.
(Solved)
Define MICR and state its use.
Date posted:
December 5, 2017
.
Answers (1)
-
What is a webcam?
(Solved)
What is a webcam?
Date posted:
December 4, 2017
.
Answers (1)
-
What is a digital camera?
(Solved)
What is a digital camera?
Date posted:
December 4, 2017
.
Answers (1)
-
Differentiate between OCR and OMR.
(Solved)
Differentiate between OCR and OMR.
Date posted:
December 4, 2017
.
Answers (1)
-
Distinguish between two main categories of scanning devices.
(Solved)
Distinguish between two main categories of scanning devices.
Date posted:
December 4, 2017
.
Answers (1)
-
Highlight 3 differences between a keyboard and a keypad.
(Solved)
Highlight 3 differences between a keyboard and a keypad.
Date posted:
December 4, 2017
.
Answers (1)
-
State the major classifications of input devices.
(Solved)
State the major classifications of input devices.
Date posted:
December 4, 2017
.
Answers (1)
-
What are input devices?
(Solved)
What are input devices?
Date posted:
December 4, 2017
.
Answers (1)
-
What is a computer system?
(Solved)
What is a computer system?
Date posted:
December 4, 2017
.
Answers (1)
-
Define the term system.
(Solved)
Define the term system.
Date posted:
December 4, 2017
.
Answers (1)
-
Describe what happens when the following key combination are pressed simultaneously: CTRL+ALT+DEL, SHIFT+ ?
(Solved)
Describe what happens when the following key combination are pressed simultaneously.
CTRL+ALT+DEL, SHIFT+ ?
Date posted:
December 4, 2017
.
Answers (1)
-
Outline the main steps that take place when one cold boots a computer
(Solved)
Outline the main steps that take place when one cold boots a computer.
Date posted:
December 4, 2017
.
Answers (1)
-
The mouse has two basic buttons.State the functions of each button
(Solved)
The mouse has two basic buttons.State the functions of each button
Date posted:
December 2, 2017
.
Answers (1)
-
Explain three ways on how you would open a folder or file located on the desktop
(Solved)
Explain three ways on how you would open a folder or file located on the desktop
Date posted:
December 2, 2017
.
Answers (1)
-
Define cursor and state its importance.
(Solved)
Define cursor and state its importance.
Date posted:
December 2, 2017
.
Answers (1)
-
In the context of selecting files or folders,differentiate between control key and shift key
(Solved)
In the context of selecting files or folders,differentiate between control key and shift key
Date posted:
December 2, 2017
.
Answers (1)
-
List down the functions of return key.
(Solved)
List down the functions of return key.
Date posted:
December 2, 2017
.
Answers (1)
-
List down two commonly confusing keyboard keys during typing
(Solved)
List down two commonly confusing keyboard keys during typing.
Date posted:
December 2, 2017
.
Answers (1)
-
State seven examples of cursor movement keys.
(Solved)
State seven examples of cursor movement keys.
Date posted:
December 2, 2017
.
Answers (1)
-
List down the correct steps to be followed when shutting down a computer
(Solved)
List down the correct steps to be followed when shutting down a computer
Date posted:
December 2, 2017
.
Answers (1)