Choosing the best harware for my system Essay

      Paint Free with every computer The main use of paint is that you can create drawing on the computer and you can also design stuff as well. The advantage of paint is that you can actually draw your picture. The disadvantage of paint is that your drawing isn’t accurate if you have a steady hand. It is very easy and straight forward to use. You cannot use it in any advanced data. Every one can use paint to create4 anything. Some people may find it very childish and might not like it. Alternatives This table is about the application I am going to use and the alternative application I am going to use. Name of Application. Alternative Application The way it works Advantages Disadvantage Difference it would make if I used it Microsoft word Notepad The way it works is that it is special application that enables to write things and also you can write your work in such way that suits you best. The advantage of Microsoft is that you can do a publish your in various ways. The disadvantage of Microsoft word is that it takes quite a lot of space. The difference that it would make to use Microsoft word it would be much easier, better and more sufficient. Another advantage is that you can you can do your in such a way that it fit you best. The thing bad about notepad is that the entire font has to be the same type of font. Notepad takes very little space. You cannot put pictures in notepad which makes it look bad. Microsoft access Open office base The way it works is for creating switchboard and web pages. The advantages of Microsoft access is that there are so many ways of creating a switchboard and you can choose any way you like. The disadvantage of a Microsoft access is that it is made for small business and not for big business. The difference that it would make to use Microsoft access it would be much easier, better and more sufficient. It is very fast and reliable. It takes up a lot of memory. It is very easy and straight forward. Office has fewer tools than access and less professional. Internet explorer Mozilla Firefox This works by You clicking on the application then a page should appear on the screen and you can go on any website you want. Mozilla Firefox is very fast compared to internet explorer. It is more expensive than internet explorer because it is better than it. Mozilla Firefox is much better than internet explorer because it is the latest application out and though it takes more space on your memory but it is more secure. There is less chance you will get a virus when you download things. Mozilla Firefox takes time to load on websites that have viruses. It is more secure than internet explorer. Mozilla Firefox is more complicated because less tools. Paint Adobe Photoshop The main use of Paint is that you can create drawing on the computer and you can also design stuff as well. Paint is very simple and straight forward. The disadvantage of paint is that your drawing isn’t accurate if you have a steady hand. The difference it would make if I used paint is that it would be easy and also it comes free on the computer. Paint can be used by anyone even children. Another disadvantage is that people might think that paint is not suitable for them due to its childishness. Paint already comes with the computer. Also It is slow to use and the file document for paint looks too childish and also pictures cannot be uploaded on database. Input The input devices that I am going to use are keyboard, mouse and scanner because these help me to create a database. Device Speed Errors that can be made Way to correct errors Keyboard The keyboard doesn’t actually have a speed that it works it depends on how the fast the typist is. The errors that can be made is that when someone is typing too fast or normally then they can press the wrong buttons and then the word becomes the wrong spelling which can lead to problems such as, if you spell the name wrong then the ticket can be addressed to the wrong person and also if you enter the address wrong then the ticket will be sent to a different address. This will cause a lot of hassle. The ways to correct this is asking the customer what he has said and to reassure that he has said the right things and if the customer has said a letter then you can use phonetics like â€Å"a† for â€Å"apple. † Mouse The speed of the mouse depends on how fast the user actually moves the mouse. The errors that can be made with a mouse is that you click on the wrong thing and this could also lead to a lot of difficulties because if someone booking a ticket to a certain place then if an employee clicks on the wrong place or the wrong time it will cause a lot of havoc. The ways to prevent these mistakes is by when the employee is talking to a customer then he should double check that what he is clicking also another way you can prevent these thing is by having shortcuts and switchboard so that there is less chance of clicking the wrong thing. Scanner The speed of the scanner depends on how powerful the scanner is like if it is powerful then the scanner will be quick for scanning. The errors that can be made on a scanner is that if someone is accidentally put the paper the wrong way round then the picture that appears on the screen will be also the wrong way round this will be trouble for the company because if their logo is the wrong way round then the they will put their logo up and when they do that the customer will see that the company is not professionally trained and then customers might not join the company. The ways to prevent this is by double checking first if the paper is the right way round and that the lit of the scanner is shut properly and to see if you have typed in the right settings and that you give the scanner enough time to scan. Keyboard To detect errors in my work I used spelling and grammar checker, which showed me the errors that I had made in my work. I also proof read the work to make sure there were no errors. To correct errors in my work I used spelling and grammar checker which gave me suggestions for my errors. I corrected some errors manually by reading through the work and then correcting the errors and I also right-clicked on the mistake and chose from the matching/possible spellings. To prevent errors from happening in my work I checked and read everything whilst typing to make sure no errors were being made. To prevent any errors in typing I used the validation technique to ensure that the data entered was valid. I also used drop down boxes to limit the search to make it easier to find the data. Mouse To detect errors in my work I checked that there were no extra/unwanted lines or marking made and that no other program or tool was clicked besides the one that I wanted. I corrected the errors in my work by using the eraser to erase unwanted lines or markings and I closed the program that had opened accidentally and opened the one that I needed for my work. To prevent errors from happening in my work I drew everything carefully and slowly and did the drawing step by step to make sure no unwanted markings/lines were made. I also clicked items carefully to make sure that no other programs or tools were opened or clicked. I also used specific buttons to automatically draw a proper line or to direct me exactly to the location I wanted to reach. Scanner To detect errors in my work I used spelling and grammar checker and proof read the work to make sure there were no errors. I also checked that the scanned image/text was exactly the same way around as the original piece. To correct errors in my work I used spelling and grammar checker to correct the mistakes and rotated the image/text back to its original form if it had been scanned up side down. To prevent errors from happening in my work I made sure that the paper was put the right way around on the scanner glass and the cover was closed properly to prevent smudging of letters. Effects of Inaccurate Data If you have inaccurate data it will affect your system and may lead to customer leaving. Data Effect Way it can be prevented. Name spelt incorrectly The ticket could be given to the wrong person or else when the person calls in to book another flight the customer will be told that the staff member could not find his/her account this will result in wasting further time as employees will have to either create a new account or ask for further details. If the customer discovers that the company is not very professional as they make a lot of mistakes then this can result in the company losing important members and customers. The ways this problem can be prevented is that when the customer phones in, when the employee is speaking to the customer and the customer tells him his detail then when he says something the employee can use phonetics e. g. â€Å"a† for â€Å"apple† or other than that the employee can use headphones to hear the customer more clearly or use a webcam to see the actual customer and there will be less chance of the employee to make a mistake and these are they way it can be prevented. Address not correct, such as postcode The effect of the address not being type in correct is a great thing because when the company sends the ticket to the wrong household then when the customer asks when the ticket is going to arrive then there will be confusion and argument and by this the customer might leave or the will further wasted time by making a new one. The way to prevent this problem is that when the customer tells his detail and when the employee hears then there should be validation and verification then there will be less chance of misconception. Recommendations not checked correctly If the recommendation is not entered properly then what the customer would have wanted on the flight will not be there and if it is a old person that requires space then if the company entered the wrong recommendation then it will cause the old person a lot of trouble. To prevent the wrong recommendation then the company could put the right input mask in then there will be less chance of the recommendation being type incorrectly. Gender not entered correctly. If the gender is not entered in properly then when they are boarding or in the airport then there will think that the customer will be trying to fraud his passport and this will cause a great hassle. Also if the gender is entered wrong it can cause the customer a lot of embarrassment. To prevent this type of mistake then the company should put validation and verification and make it only they can enter the words â€Å"male† or â€Å"female† and by doing this will reduce the chance of making a mistake in writing whether male or female. Date of birth not entered in correct format. The problem if the date of birth is not typed correctly then when the customer goes to the airport it could can be very embarrassing and after the customer might chose to leave the company. To prevent this mistake the company when making the database they could put in the right ‘Input Mask’ and the right data type. Subscriptions not entered in correct format If the subscription is entered incorrectly then if like a fat person asked for 2 seats then if they get it wrong then when the fat person goes in the plane then it will cause him a lot of hassle. To prevent this mistake then the company should put in the correct input mask and the right data type and also use phonetics and this will lower the chance of making a mistake. The best method of getting the most accurate information is to re-check with the customers. Validation When someone is entering data into something it is very vital for you to enter it correctly. This is why validation comes in. The actual meaning of validation is to make sure the data is allowable like when you get a database and when it says enter gender and if you enter something besides â€Å"male† or â€Å"female† then it does not allow you this what validation it. I need validation for my database because when someone uses it then there is less chance that someone will make an error this is why I going to use validation. Verification (It was mentioned earlier that validation cannot make sure data that you enter is correct, it can only check that it is sensible, reasonable and allowable. However, it is important that the data in your database is as accurate as possible. Verification can be used to help make sure that the data in your database contains as few mistakes as possible. ) This is from Teach me ICT. Com by this you can see that when verification is the like the second step of validation that make sure that you most likely not to get a mistake and lowers the chance to get a mistake. Output This table is the output devices that I am going to use. Device Type The way it works Advantages Disadvantages Best place to use it Printer Laser The la.