Software
Software is something that runs on our computer which makes it work. Without a software then your computer can’t work.
There are two main types of software: Operating software and Application software.
Operating Software (O.S)
Operating software is a programme that allows application software communicates with hardware; here are few of operating software: Window Vista, Window XP, Unix etc.
Application Software
Application software is a programme that lets you create graphs, letters etc. Application can be classed into three main categories.
There are two types of operating software that makes your computer run, these are GUI (graphical user interface) and CLI (command line interface)
- CLI – CLI stands for command line interface.
- GUI – GUI stands for graphical user interface.
The operating system I used is the GUI because it has colours and it very easy to use.
The difference that the window vista would make is that is would have more upgrades, the internet would be faster and that it would have the latest things would be on vista and would be faster. If you use an old window then the speed would much slower and it would crash more often.
If I used CLI then the computer would be faster but then it has no colour and when people do their work it puts them off and also if you make one spelling mistake then you have to type the whole thing again therefore more time wasting.
Application Software
- List all the applications that you used
Microsoft Word
Microsoft Access
Internet explorer
Paint
This table shows the application that I am going to use the main function and their advantage and disadvantage.
Alternatives
This table is about the application I am going to use and the alternative application I am going to use.
Input
The input devices that I am going to use are keyboard, mouse and scanner because these help me to create a database.
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.
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 “male” or “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.
After I had been looking at the output devices my work hasn’t actually been affected that much but I have used the best output devices that I can and the devices I was used very good and I can now do my work easily.
Conclusion
The system that I used was the right one for this task because I was able to do my work quickly, and efficiently, and I think the company would need one more hardware, which is a headphone for every employee so when they talk to the customers it would be more easier to talk and type.
Also, all the hardware I used was the right one as it made me finish my task on time, and it was the right, or quicker time to finish on.. Also I do not think I will need anymore other hard wares because I used the most appropriate hard ware that I can.
Choosing and Describing Applications =3
Describing using Hardware =3
Describing using Software = 3
Characteristics, Benefits, and drawback of each system = 6
Demonstrate use of Input Methods = 1
Comment on their speed, accuracy and validation = 4
Describe your system outputs = 1
Comparing Output devices Alternative outputs and drawbacks to your system= 4