Electronics Essay Example | Topics and Well Written Essays - 3000 words

Electronics - Essay Example The function of the electronic parts in these systems is to receive input information, to process this information and then to produce an output. For example, in a computer, the input information is provided by pressing the buttons on a keyboard, the processing may involve arithmetic or comparison with previous information in a memory and the output will be a print out or a display on a video display unit. In another example, both input and output of a communications system may be sound such as words or music. In other areas such as instrumentation and control, these are many non-electronic systems widely used. Both power steering and servo assisted brakes in automobiles are usually non-electronic and mechanical clocks and watches still have a share of the market. Electronic systems are required to process or react to information. The information may have many forms, including physical quantities such as temperatures, velocity or mass, simple on/off information resulting from a switch being operated, or the highly concentrated and detailed information in speech, music and pictures. All these different forms of information have one common factor i.e. both amplitude and frequency may vary with time. This means that they can be illustrated by means of graphs and in many cases they can be defined as functions of time with mathematical expressions. Electronic circuit's can only react to information in the form of time-varying voltages and currents. We can conveniently refer to these forms of information as signals. There must therefore be some form of interface or converter between the real world and the electronic world. The interface may simply be a transducer for example; a microphone converts sound energy containing information into electrical energy in the form of a signal which contains the same information. An electronic system will have input signals from transducers and output signals which are reconverted by other transducers to produce energy in various required forms. Between these two processes, within the system there will be other signal forms. Lets quickly look at the function of electronic circuit any systems. And the function is to process signal, many different processes are possible and useful but, before considering a wide range of processes, it will be helpful to examine some simple system and to consider what type of processes may be required. A radio communication system: requires transmitting speech and music from a concert Hall to a place 100 miles away while other similar transmission is occurring in the same area. While the problems are: Alternating signals (A.C.) can result in radiated electromagnetic waves (radio signals) but signals at audio frequencies do not radiate efficiently. Also, as there would be similar transmissions in the same area, there would be interference as all the radiated signals would be received more or less equality. The solution use higher frequencies which can be radiated readily, in order to carry the signal information on these higher frequencies, use different high frequency carriers for each separate transmission to avoid interferences. The process required is: The minimum needed for a simple radio communication system can be represented in the block system. Let's look at am automatic washing machine. The

Memos Personal Statement Example | Topics and Well Written Essays - 1000 words

Memos - Personal Statement Example The pros include having increased productivity due to speed and convenience. Reason being, sales executives will be able to travel in different places selling our furniture with their own devices. Management will also be able to keep in touch with them via emails so that they can be able to catch up on the important documents with their tablets (Theodoropoulos, 2013). The fact that the employees are working with devices that they are familiar with makes it easier for them to do a commendable job as opposed to working on new devices provided by the company. The other pro is that is saves on costs especially since the company is not the one providing the employees with the devices (Hinde, 2013). Should the employees need a device like an iPad, it is preferable that they use their own, as it will be cheaper. Many of the employees already have personal laptops and mobile devices and in many cases, they just use them for business reasons. The pro related to BYOD is that it improves employ ee’s morale to work. This is because employees have their own unique preference whether it is an Android, iPhone or other different apps. Therefore allowing them to come with their own personal devices will improve the satisfaction that they have at work (Hinde, 2013). When employees are satisfied with where they work, they tend to be more productive translating to great benefits for the company. The BYOD however does not lack some few cons starting with having challenges managing security. For instance if an employee loses their device in which she or he has saved sensitive company information, there is a risk that it might fall in the wrong hands and be used to destroy the company. Therefore as a way to curb this, the company should have controls that are taken before any employee gets access to company information. In addition, in the event that an employee no longer works for the company, being able to retrieve the data will prove difficult The other con involves the comp any not having total control of how the employee uses their personal devices. This is compared to devices supplied by the company whereby there is an acceptable policy of how to use the device particularly laptops (Theodoropoulos, 2013). The company has challenges managing what the employee’s uses the device for unlike when the company puts a work only restriction. Before the company decides to use the BYOD, both the pros and cons should be put into deep thought (Hinde, 2013). Also the company should ask itself some of these questions; how will it put back up data on their employees personal devices? Will the company have to pay for employees expenses like access of internet, phone bills? Moreover, will it be cost effective or another additional cost for the company? Lastly, will the BYOD devices be linked to the company devices? Other firms are taking these precautions to ensure they keep the BYOD under total control. In my opinion with the right strategy, the company can im plement the BYOD. Part B Question B4 From: To: Nick F. Thyne Re: it’s just like being there, only better It is true, virtual meetings can save the company from expensive travel expenses every year. The good thing is that implementing virtual meetings is quite a simple task to achieve. This is because the service is done electronically where users employ computers and other internet technology devices as a way to