Analog and Digital Comparison Report

Digital and Analogue Devices

Analogue Clock

The analogue clock is a time indicator device that uses pointers that are well known as hands (Henzinger & Pnueli, 2010). These pointers are three in number and are rotating around fixed numbers ranging from1 to 12. The device indicates time depending on the number with which each hand points. The hands are identified by their size . The shortest hand is the hour hand; the medium one is the minute hand and the longest is the hand that indicates seconds. The hour hand makes a twin revolution each day as there are 12 hours around the clock face. The minute hand, on the other hand, indicates a current minute within the same hour and an hour has a total of Sixty complete minutes. The second's hand indicates seconds in the current minute indicated by the minute hand. It makes a complete revolution within one minute.

The analog clock device was commonly used (and is still used) in offices, homes and business organizations (Lewis & Gray, 2011). Just like most devices, this device needs electric power to function. The three hands are made to revolve mechanically by the help of wheels of different sizes that makes the second's hand to revolve fastest, and the minute hand revolves a bit slow whereas the hour hand revolve the slowest. It can also be read through an even number system that records 2, 4, six all the way to 24. Most of these analog clocks revolved by striking on the circular orbit 24 times a day.

It is advantageous in an aspect that through the striking of the different time-hand indicators, one can describe the change of time on the sun's position. It is disadvantageous from the fact that there is difficulty in taking a 24-hour clock system. Besides, it is difficult to tell time at a glance. Since the pointers just point to the numbers or the spaces between the numbers, it is quite difficult to tell the actual time at once.

Digital Clock

After the development of analog clocks, through to the industrial revolution, the digital clock developed (Henzinger & Pnueli, 2010). This clock system uses numeric figures to give an indication of time more accurately and quick to translate at a glance. This clock system can have two settings that include; 24 and 12-hour clock systems. The numerical figures for the 12-hour clock range from1 to 12 as that of the 24-hour clock system ranges from 00 to 24. With the digital clock system, there is an improvement with the advancing technology that allows an indication of whether the time is in AM or PM. This is possible in the 12-hour clock system. For instance, if one's watch indicates 6:00, there is a reasonable inclusion of whether it is 6:00 am or 6:00 pm.

Since the entry of the digital clocks, temporal phenomena have been made easier to evaluate. Some of these phenomena include quick time scale measurements that need timing. A great example is in sports that include racing. Digital clock system can indicate the exact time in hours, minutes, seconds and micro-seconds. With the digital clocks, there is a development of perfect temporal measurements. This is made possible through a programme system that is instructed to provide temporal variations.

With the endorsement of digital Clocks, there has been the development of more related devices that indicate various phenomena in different grounds (Lewis & Gray, 2011). It has brought the idea of digitized speedometers in motor vehicles and large city clock displays. The evaluation of the display of digital clocks is achieved through blinking as the figures are separated by the blinking point often separating hour figures from the minute figures. A good example of a digital clock is shown in the figure below:

Comparison between Digital and Analogue Clocks

One sure thing between the digital and the analog clock is that they are used to indicate the time. Though one could find it difficult to tell the exact time using the analog clock system, a closer look would work better. This is where the digital clock has the advantage as one does not require straining to be able to tell the exact time. The numerical figure display gives this advantage. Both of these time indicators are subject to two different mechanisms to be able to achieve time objective. The analog clock system uses mechanical means where the turning of the pointers is made possible. On the other hand, the digital clock system is achieved through an electric mechanism. The variation of time is possible through the programmed software that has the directives of a temporal factor.

There are several differences between the digital and the analog clock systems. The digital clock does not provide an indication of the day, month or even year with which the time is indicated. This has been made possible in digital clocks through a computer programming system that is made possible through fitting the instructions into a chip or a software component. Besides, there has been the possibility of analyzing temporal factors and intervals through the digital clocks. One, therefore, can be able to set a reminder of an event that is yet to happen in the near future; a procedure that is impossible in the analog clock system. Some kind of digital Clocks can, therefore, be used as to indicate time and date at the same time. This then reduces the expense of acquiring a calendar.

The analog clock system is researched to use much power compared to digital clocks. Since the analog clock uses a mechanical mechanism, the influence of a frictional force that is applied requires a little more electric energy as opposed to the digital clocks. This makes the digital clocks more efficient. Besides, the analog clock system is subjected to a higher percentage of temporal errors due to the influence of friction as already seen herein. This means that for every turn that a pointer makes, there is a substantive drag that delays the next turn hence time error. Digital clocks do not face such challenges as the figures are digitally displayed.

Generally, for these many reasons, a number of people have evolved to the use of digital time system that is more accurate and economical as well. With the advancing technology, much more means and measures of displaying time have been developed. Despite the advantages that the digital clock system has over the analog system, the analog clock system is still used in the current society for a reason or the other and is referred to as a classical display of time.

References

Henzinger, T. A., Manna, Z., & Pnueli, A. (2010). What good are digital clocks?. In International Colloquium on Automata, Languages, and Programming (pp. 545-558). Springer Berlin Heidelberg.

Boulton-Lewis, G., Wilss, L., & Mutch, S. (2009). Analysis of primary school children’s abilities and strategies for reading and recording time from analogue and digital clocks. Mathematics education research journal, 9(2), 136-151.

Abo, A. M., & Gray, P. R. (2011). A 1.5-V, 10-bit, 14.3-MS/s CMOS pipeline analog-to-digital converter. IEEE Journal of Solid-State Circuits, 34(5), 599-606.

Lewis, S. H., & Gray, P. R. (2011). A pipelined 5-Msample/s 9-bit analog-to-digital converter. IEEE Journal of Solid-State Circuits, 22(6), 954-961.

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