Coding and implementation of a digital clock using andriod platform

CHAPTER ONE

INTRODUCTION

A digital clock is a type of clock that displays the time digitally i.e. in numerals or other symbols, as opposed to an analog clock, where the time is indicated by the positions of rotating hands. Digital clocks are often associated with electronic drives, but the digital description refers only to the display, not to the drive mechanism. Both analog and digital clocks can be driven either mechanically or electronically, but clockwork mechanisms with digital displays are rare. The biggest digital clock is the Lichtzeitpegel Light Time Level on the television tower Rheinturm Dsseldorf, Germany. Digital Clock Software is an application that displays the current time in your phone, tablet or computer. The application is not necessarily a screensaver even though it might look like one. Instead, Full Screen Digital Clock Software is a tool that takes over your gadget and displays the time for you. The time that the application displays is digital. The user can select a region where he/she lives for the application to display the current time. Moreover, Digital Clock Software will let you set the colour of the time. The font size of the clock can also be customized. The clock is one of the oldest human inventions, meeting the need to consistently measure intervals of time shorter than the natural units: the day, the lunar month, and the year. Devices operating on several physical processes have been used over the millennia. A sundial shows the time by displaying the position of a shadow on a flat surface. There are a range of duration timers, a well known example being the hour glass. Water clocks, along with the sundials, are possibly the oldest time measuring instruments. A major advance occurred in Europe around 1300 with the invention of the escapement, which allowed construction of the first mechanical clocks, which used oscillating timekeepers like balance wheels. Spring driven clocks appeared during the 15th century. During the 15th and 16th centuries, clock making flourished. The next development in accuracy occurred after 1656 with the invention of the pendulum clock. A major stimulus to improving the accuracy and reliability of clocks was the importance of precise timekeeping for navigation. The electric clock was patented in 1840. The development of electronics in the 20th century led to clocks with no clockwork parts at all. The timekeeping element in every modern clock is a harmonic oscillator, a physical object resonator that vibrates or oscillates repetitively at a precisely constant frequency. This object can be a pendulum, a tuning fork, a quartz crystal, or the vibration of electrons in atoms as they emit microwaves. Analog clocks usually indicate time using angles. Digital clocks display a numeric representation of time. Two numeric display formats are commonly used on digital clocks: 24hour notation and 12hour notation. Most digital clocks use electronic mechanisms and LCD, LED, or VFD displays. For convenience, distance, telephony or blindness, auditory clocks present the time as sounds. There are also clocks for the blind that have displays that can be read by using the sense of touch. Some of these are similar to normal analog displays, but are constructed so the hands can be felt without damaging them. The evolution of the technology of clocks continues today. Full Screen Digital Clock Software is a reliable application that has everything to be successful. It is small, customizable, and works well. After you try Full Screen Digital Clock Software, it will become one of your favourite.