INTORDUCTION:
A touch screen is an input device that allows users to operate a PC simply, its technology is based on CRT(Cathode Tay tube) Technology, that accepts direct screen input.
HISTORY:
Historians consider the first touch screen to be capacitive touch screen invented by E.A Johnson in the Uk around 1965. The inventor initially developed this technology for air traffic control.USES:
It allows user to interact directly with what is being displayed, rather than indirectly using a mouse or keyboard.
It is used in smartphones, tablets etc.
It is used in smartphones, tablets etc.
Nowadays touch screen lcd's and laptops are getting famous.
ADVANTAGES:
Touchscreens provide end users on opportunity to interact with the computer, improving the human-computer interface and improving the user's experience.
Touchscreens are easy to use, and relatively easy to understand.
It saves alot of time.
Touchscreens are easy to use, and relatively easy to understand.
It saves alot of time.
DISADVANTAGES:
It is difficult to select small items.
It causes little schock when touched with wet hands.
They are very costly.
Screen becomes untidy due to usage of fingers.
User must be in range of screen so he could might touch it.
It causes little schock when touched with wet hands.
They are very costly.
Screen becomes untidy due to usage of fingers.
User must be in range of screen so he could might touch it.
No comments:
Post a Comment