Choosing hardware and input devices Essay

      Microsoft Publisher Microsoft Word Paint Internet Explorer This table shows all the applications I used to complete my coursework Name of Application Price Main Functions Advantages Disadvantages Microsoft Publisher i 49. 99 The main function of Microsoft publisher is to create websites, documents, cards, almost everything ETC. It is easy to create these kinds of things with Microsoft publisher. It is very easy to create websites cards etc. It takes a very long time to install on the computer. It runs in a very fast speed so it doesn’t need time to load up. It can be very confusing and you need to know how to use it. It has so many design options, about over 1,000 professionally designed templates. You can’t make very precise layouts because it doesn’t have the precise tools. Microsoft Word i 49. 99 The main function of Microsoft office word is to create and also edit text, graphics in letters, reports, and web pages and also email messages. For this it has different functions like formatting text into different styles and formatting the font. Data can be imported from a spreadsheet to this so that a mail merge can be created. It is quite difficult to store data like Microsoft Access. If you get any mistakes it can be corrected so easily. Not everyone will be able to purchase it because it costs too much. The work can be saved so that it could be done at another time. If people start relying on the spell checker they might lose their spelling skills. Internet Explorer You don’t need to purchase it because it is already installed on the operating software. The main function is that people have wide access to the information the want. The other function is that they can communicate, do a bit of shopping, and it can also be used for entertainment. Doesn’t need to be purchased because it’s already installed on the operating software. Some information can be biased and inaccurate. Used for a lot of things E. G. Communication, shopping, gaming E. T. C Surfing the internet too much, can be addictive. It can be accessed by anyone in the world. Illegal sites always occur even if you’re surfing the web carefully. Paint You don’t need to purchase it because it is already installed on the operating software. The main function is to create drawings and to display scanned photos. The other function is to create pictures and diagrams. Doesn’t need to be purchased because it’s already installed on the operating software. It can’t store information in a table like Microsoft Access. You can draw logos, pictures E. T. C Older versions of it cannot open files that are from a newer version. It has a special image function which allows you to edit or change photos. It cannot type in text in different forms like Microsoft Office Word. Alternatives This table show the alternatives of the table above Name of Application Alternative Application The way it works Advantages Disadvantage Difference it would make if I used it Microsoft Publisher Adobe Dreamweaver The main function of Adobe Dreamweaver is to create mainly websites but other things can be made such as cards, magazines etc. Websites can be made much more accurately and much more precise than Microsoft word. It is much more expensive than Microsoft word so it can’t be purchased by everyone. The main difference it makes is that I would be able to work more accurately and create better websites. However it is more complicated than Microsoft publisher so it will be hard to use. Website designers can make changes to the design of a website simply by editing the Dream Weaver template files. It is much more complicated than Microsoft word so it’ll be hard to use. Simple and complex websites can be designed using a point and click method. It takes much longer to install. Microsoft Word Open Office Writer The main function of is to create and edit text, reports, and web pages and email messages. For this it has different functions like formatting text into different styles. The wizard makes it easier for new beginners to use. The wizards appear too much which is distractible. The main difference is that I would be able to create and edit text, reports, web ages and email messages easier and much more accurate. It can connect to any existing database. It is less popular than Microsoft Office Access so not many people use it. You don’t have do buy this but you can get it for free. For some people this could be hard to use because of the extra functions. Internet Explorer Mozilla Firefox The main function is that people have wide access to the information the want. The other function is that they can communicate, do a bit of shopping, and it can also be used for entertainment. It is much quicker and faster than internet explorer. It is not supported by a small proportion of web sites. The main difference is that I would be able to gather information and surf the net much quicker than internet explorer. It has more security on it because it doesn’t let pop ups through at all. With Mozilla Firefox some websites do not display properly. It has more design and looks better than Internet Explorer. Fire fox has to be bought separately if it is to be installed in the computer. Paint Paint. net It works in the same way as paint. But this has extra special features and they work by having a user interface which can automatically know something new directly. There are different versions for different operating software’s. People could get wrong versions and so they wouldn’t work and they would have to buy new ones. The main difference is that I will be able to get help from the online forums If I did not no how to use it. Also if I make a mistake and I realise after a bit, then I will be able to go to that mistake because there is unlimited undos. It has online forums which makes it easy for members to get help from users. Some people won’t understand it because it looks very complicated. There is an unlimited amount of pressing undo. It doesn’t come supplied with computers from before so you have to buy it. Microsoft Publisher It is used for creating mainly websites. Microsoft Word It is used for typing in any kind of information. Internet Explorer It is used for getting information. Ismail Bismillah Paint It is used for creating pictures, drawings, logo E. T. C Input These are the input devices I used to make my work easy. Device Speed Errors that can be made Way to correct errors Keyboard The speed of the keyboard is measured in form of words per minute. It depends if you are a fast typist or a slow one. Many errors can be done whilst typing. For example, when you’re typing very quickly, you can press the wrong key which will change the spelling of a word. Also when you’re typing numbers you can make mistakes. E. g. if you want to type in 786 and your in a rush you can make mistakes like pressing the wrong numbers. (768) The way to correct these errors is to type a lot and you will get use to it so much that you wont get any mistakes. Another easier method is to click on â€Å"tools† then click on â€Å"spelling and grammar†. This will show you all the mistakes and you can easily correct it later. Mouse The speed of the mouse also is measured in the similar way. (Clicks per minute) It depends if you are fast or slow on using the mouse. Many errors can also be made whilst using the mouse. The main error that can be made is that when you are in a rush, you can easily click on something wrong which will take you to a different place. Also the mouse can easily slip when you’re moving it. The way to correct these errors is to use a mouse pad which is especially designed/made for mice. Another way to correct this error is to use the mouse a bit slower and not in a rush. Scanner The speed of the scanner depends on how much data is being scanned. It also depends on what type of scanner it is. Errors can be made using the scanner as well. The main error that can be made is that the paper can be put the wrong way (upside down). Also the paper can sometimes be inserted half way inside. The way to correct these errors is to check carefully which way the paper should be put in. Also the paper should be put in straight and not bent. Keyboard I detected errors in my work by using the spelling and grammar checker to check any spelling mistakes and any punctuation mistakes. To correct the errors in my work I would use the proof reader to correct mistakes that are done in my work. To prevent errors from happening, I typed a bit slower and much more carefully and I carried on looking at the screen to see if there were any mistakes I made. Mouse I detected errors in my work by checking manually if I made any clicking mistakes. To correct the errors in my work I would check manually and make sure that I would click the right thing if something unwanted had been clicked by going back and clicking the right thing. To prevent errors from happening in my work I would make sure that I would buy a mouse pad so that the mouse doesn’t slip and so the wrong thing doesn’t be clicked. Scanner I detected errors in my work by checking manually if all the information has been scanned and also that it is the right way round but not upside down. To correct the errors in my work I would check manually and make sure that if the data is scanned upside down than I would delete that data and I would than scan the data again by moving the data on the scanner the other way round. To prevent errors from happening in my work I would make sure that the data is the right way round in the first place and also make sure that no part of it is covered up. Effects of Inaccurate Data Inaccurate data will affect the system in many ways. Data Effect Way it can be prevented Spelling mistakes (website). If spelling mistakes are made then wrong information might be given out and also the customers will think this agency is not a professional one. To prevent this I spell checker can be used. I can also tell someone to go through it and look at my mistakes. Hyperlinks not linked correctly If hyperlinks are not linked properly then the business will become low because when you click on the link it’ll send you somewhere else or not take you anywhere. This can be prevented by checking the hyperlinks properly and making sure there are no mistakes. Also makes sure checking takes place before advertising. Not changing the colour of hyperlinks If hyperlinks do not change colour then the customer will not no which site he has been to so he will go on that website repeatedly. The way this can be sorted out is that when a customer clicks on the hyper link then it should change colour so the customer does not go on it repeatedly. The best way to stop all the problems is to keep on checking if you have made mistakes. This way all your mistakes will be sorted out. And there won’t be any inaccurate data Validation Validation is to make sure that data which is being entered should be reasonable and allowable meaning that it is something possible but it doesn’t have to be correct. There are a few different types of validations to help reduce the number of errors made by a user: Type check, range check, picture or format check, check digit, field length checks etc. Verification The validation can be used to make sure that when a user types data in the computer and if there are any errors made in the typing then they are reduced. For example if a database was going to be made with mistakes like if a 1993 date of birth was typed and was not true, the computer will not take it as an error if was programmed to let in anything between 1990 and1994. So the results would be incorrect and full of mistakes. This could also be known as Garbage In, Garbage out (GIGO). So that is why validations are important to help make sure that the user knows if there are any errors that have been made when typing data into the computer but it does not help in telling if the data is true or false. Output This table shows the outputs I used. Device Type The way it works Advantages Disadvantages Best place to use it Printers Laser A mirror reflects a beam of laser, and then lays them. A toner is then sprayed onto it. A paper is now pressed onto the toner and is slightly heated so that it sticks firmly on the paper. It prints out very quickly compared to ink-jet and dot-matrix printers It is the most expensive printer especially the colour lasers. The best place to use this laser printer is an office because an office requires a large amount of papers printed in small amount of time and with less noise as possible. It prints out very fast compared to ink-jet and dot-matrix printers Because it is so big it takes up more space than ink-jet printers. It has a high quality compared to ink-jet and dot-matrix printers It is very expensive to repair because of the complex parts inside.