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Touch Screen Technology. CONTENTS. INTRODUCTION DEFINITION TYPES OF TOUCH SCREEN HOW DOES IT WORK ? WHAT ARE TOUCH SCREEN USED FOR? ADVANTAGES OF TOUCH SCREEN DISADVANTAGES OF TOUCH SCREEN CONCLUSION. INTRODUCTION.
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CONTENTS • INTRODUCTION • DEFINITION • TYPES OF TOUCH SCREEN • HOW DOES IT WORK? • WHAT ARE TOUCH SCREEN USED FOR? • ADVANTAGES OF TOUCH SCREEN • DISADVANTAGES OF TOUCH SCREEN • CONCLUSION
INTRODUCTION • The first "touch sensor" was developed by Doctor Sam Hurst . • This sensor was called the "Elograph. • Elograph with transparent screen. • Changed of name from Elographics to EloTouchSystems.
DEFINITION • A touch screen is a computer display screen that is also an input device. • A user interacts with the computer by touching pictures or words on the screen.
TYPES OF TOUCH SCREEN • Resistive • Capacitive • Surface Wave
RESISTIVE • Resistive touchscreens are pressure sensitive, so they can be operated with any input device, including a gloved hand or stylus. • easily damaged by sharp objects. • they offer only 75% clarity.
CAPACITIVE • Capacitive screens are resistant to outside elements, making them very durable. • capacitive panels must be touched with a finger. • maintains high clarity.
SURFACE WAVE • Surface wave touch screen are more advanced technology that provides high durability and can be operated by either human touch or stylus. • offers highest clarity. • considerably more expensive.
USES OF TOUCH SCREEN • Public Information Displays: • Time saving: • Customer Self-Services: • Computer Based Training: • Assistive Technology:
ADVANTAGES • Ideal for web browsing, picture and movies. • Simple user interfaces, which are more intuitive (iPhone once again is a good example). • Touchscreen devices have fewer buttons .
DISADVANTAGES • Big screen leads to low battery life. • Touchscreen means screen can’t be read too well in direct sunlight as it applies an additional not 100% transparent. • Screens get very dirty. • These devices require massive computing power which leads to slow devices and low battery life. • Finger stress.
CONCLUSION • Though the touch screen technology contains some limitations it’s very user friendly, fast, accurate, easy for the novices & fun to operate.