Computing And System Development

Evaluate recent Touch Screen related developments and their application


Throughout the yesteryears, technology has improved in leaps and bounds. The biggest contributing factor of this advancement is the way humans interact with technology. Touch screen is one of the latest examples. With touch screen mode, user is able to operate in a digital environment by mere a touch of the finger tip on the screen. Introduced in 1971, touch screen technology has now achieved great heights. Today there are more compound and sophisticated touch screen devices available for mobile users. Undoubtedly, these are more accurate and inlaid with much advanced features.

There are several Touch screen technologies available these days. Let us put some light on the recent touch screen advancements:

1. INFRARED TOUCH SCREENS

Basically, there are two different types of infrared systems available. These are internal reflection system and a standard grid. Although these are very accurate systems but are more spacious than other types of touch screen technology. Infrared technology consists of infrared LED’s arranged in a specific pattern to read the strength of the beams whenever a finger comes in contact with the screen.

2. RESISTIVE TOUCH SCREENS

This is the simplest and the most common form of touch screen technology available in the market. Resistive touch screens are most widely used in GPS navigation systems, mobile phones and DG cameras. A conductive material, Indium Tin Oxide arranged in two different layers and separated by a reasonable gap for air constitutes a resistive touch screen.

3. CAPACITIVE TOUCH SCREEN

Introduced in the early 1990’s, capacitive touch screen technology has improved to a great extent today and has become one of the leading technologies in the world today. It has a very efficient design and a multi touch technology to better support the system. It is most widely used in MP3 players and smart phone devices. To sum up all, advancements in touch screen technology have made the life of people more enjoyable and easy. They have added a technical and sophisticated touch in the environment. The interface has improved a lot and so has the versatility of touch screen devices.

Discuss the impact of Touch Screen in the workplace. How Touch Screen has changed the working environment? Change on the type of tasks people perform in today’s workplace, etc?


These days touch screen play an extremely vital role in the workplace. More simpler and easy modes of touch screens have contributed towards portable computing. There is a touch on the screen and x and y plots detect the touch. It is found that 84% of tablets and 69% of ipad’s are used for business purposes. The revolution of touch technology based tablets has lead to some incredible consequences. More and more business men keep their business on their fingertips. There are even touch PC’s with excellent features designed to make operations easy and sound. Work can be easily shared among peers during conferences or in office halls. Some of the latest used touch devices include MSI wind top AE2210, Sony Vaio L series touch screen PC’s, Samsung Galaxy Tab2, Samsung S3 and HP Touch smart 610xt. In the not so distant future, touch screen will be there on every desk thus enabling effective interaction among people in business. Any empty space will be occupied by large touch screen devices and every hand will be seen working on touch screens using fingertips. In other words, both physical and technical environments will be best utilised.

Discuss the issues related to user characteristics for Touch Screen.


Although touch screen technology is a boon to the world, however there have been some issues in the limelight regarding this technology. The first and the most important is the finger touch. Finger tips may be large or small depending on the user so, this may lead to improper positioning. The user has to be somewhere near the screen to operate it. Depending upon the screen he has to sit and stand. Also, a lot of finger touches make the screen dirty. Fingers or usage of pointers like pen can even disrupt the screen totally.

References


Hill, Anthony. "Touch screen technologies: Their advantages and disadvantages; the guidelines offered will point you toward the best touch technology for your application needs." Control Solutions, September 2002: 24.

Hoggan, Eve, Topi Kaaresoja, Pauli Laitinen, and Stephen Brewster. "Crossmodal Congruence: The Look, Feel and Sound of Touchscreen Widgets." ICMI. 2008. 157-164

Mayhew, D. J. (1992). “Principles and guidelines insoftware user interface design”. Englewood Cliffs:Prentice Hall.

Minsky, M.R "Manipulating simulated objects with realworldgestures using a force and position sensitivescreen". Computer Graphics.

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