This document provides an overview of digital clocks, including their history, components, and uses. It discusses how the first digital pocket watch was invented in 1883 and the first digital alarm clock was patented in 1956. The main components of a digital clock are described as the 74LS47 IC, 74LS90 IC, 74HC32 IC, function generator, push button DPST, and 7 segment display. Digital clocks are widely used in devices like cars, radios, TVs, microwaves, ovens, computers, and cell phones to display the time digitally. The advantages of digital clocks are noted as being less expensive, easier to read accurately, and simpler to understand than analog clocks.

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Name: khadija tul Kubra
Name: Amina Ikram
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Name: Farzana Kousar

4. Contents
 Introduction.
- About Digital Clock.
- History of Digital Clock.
 Equipments.
 Implementation In android studio.
 Uses Of Digital Clock.
 Conclusion.
- Advantage of Digital Clock.
- Future plan.

5. INTRODUCTION OF
DIGITAL CLOCK

6. About Digital Clock
 What Is Digital Clock?
- A digital clock is a type
of clock that displays
time digitally.

7. History Of Digital Clock
 The first digital pocket watch was the invention of Austrian
engineer Josef Pallweber who created his "jump-hour"
mechanism in 1883.
 The earliest patent for a digital alarm clock was registered by
D.E Protzmann and others on October 23, 1956, in the United
States.
 The Hamilton Watch Company introduced the first digital
wristwatch that included an LED display in 1970.

8. EQUIPMENTS OF
DIGITAL CLOCK

9. Used Equipments
 74LS47 IC
 74LS90 IC
 74HC32 IC
 Function Generator
 Push Button DPST
 7 Segment Display

10. Description
>> 74LS47 IC

11. Continued…
>> 74LS90 IC

12. Continued…
>> 74HC32 >> Function Generator

13. Continued…
>> DPST >> 7 Segment Display

14. IMPLEMENTATION IN
MULTISIM

15. USES OF DIGITAL CLOCK IN
REAL LIFE

16. Uses Of Digital Clock
Digital Clocks are used in different
kinds of devices such as cars,
radios, televisions, microwave
ovens, standard ovens, computers
and cell phones.

17. CONCLUSION OF DIGITAL
CLOCK

18. Result and conclusion

19. Advantage of Digital Clock
 Less expensive.
 Easy to understand time concept.
 Give time more accurately than analog clock.
 Easier to read time.

20. Digital clock in java
public class clock extends java.saving.jframe{
/**create new form clock**/
public clock(){
initComponents();
current time();
celender cal=new Gregorian Calender();
int second=cal.get(calender.SECONDE);
int minute=cal.get(calender.MINUTE);
int hour=cal.get(calender.HOUR);
jLabell.setText{“Time::“+hour+” “+minute+” “+second};
}
}

21. Future Plan
 Set Time setting , off and on
system.
 Set Date system.
 Set Alarm system.

24. Any Question Please??