I. Introduction Touch screen technology enables direct interaction with devices through touch. Using either capacitive or resistive methods, these screens detect user input, translating it into commands. Widely used in smartphones, tablets, and kiosks, touch screens offer intuitive navigation, eliminating the need for physical buttons and enhancing user experience across various applications. Understanding how touch screens work is crucial for users and developers alike. It enhances user experience by ensuring effective interaction, informs choices in device selection, and guides troubleshooting. For developers, knowledge of touch technology is vital for creating intuitive applications and improving interface design, ultimately leading to greater user satisfaction. This blog aims to explore why touch screens predominantly respond to fingers, delving into the science behind touch sensitivity. By examining the principles of capacitive and resistive technology, we will uncover the
Difference between Barcode, QR code and RFID What Is A Barcode? Norman Joseph Woodland and Bernard Silver was the first to invent barcode, initially it was based on the dots and dashes of Morse Code. In the 1960s American Railroads started to use barcodes to identify trains, cars etc. It wasn’t until the 1970’s that The barcodes became commercially successful in 1970 and thereafter it has been taken up by supermarkets as a way to quick matching of items at the checkout point which is now universally used today. A barcode is nothing but a series of black and white lines, each representing a number and obviously each bar code is of different patterns. Once a product arrives at a store, the barcode is coded with a price for that particular product and when a purchase is made at the counter, a laser reads and decodes the code and the price is automatically added to the purchase receipt. This is just one simplest example of how barcodes is used popularly and it is the one we are famil