9781422276020

T here have been many techno- logical developments in the past few centuries. Newer and better ways of communication and enter- tainment are being devised every day. The improvements in previous devices gradually paved the way for modern versions. In only a cen- tury, we have moved from pigeon posts , telegraphs, and letters to mo- bile phones, computers, and online social networks . History of Devices

INTRODUCTION T he world of technology is moving at a fast pace. Many different types of electronic machines (fun name: “gadgets”) have come to rule our lives. These devices perform a specific function for personal or office use. They are the latest and the most futuristic things in our lives. Gadgets may be small or large but each is able to perform a super task. They have the most recently introduced technologies. These innovative devices are likely to leave a huge impact on our future. Devices such as laptops, digital cameras, iPods, printers, scanners, card readers, and PlayStations are all examples of these inventions.

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SCIENCE & TECHNOLOGY