Computer Studies Notes + Tips + Queries

[Suchal Riaz]

http://mattg99.wordpress.com/2011/0...sion-types-of-testing-and-types-of-test-data/

ok. thnx.

 

[Saad Mughal]

Found these in May June 2011 ATC mark scheme.

One mark per point
Test data max 2
- use of test data sets
- normal test data has known outcomes
- extreme test data checks validation rules
- abnormal test data should produce error messages
- mention of normal, abnormal, and extreme data (all 3 with no valid expansions, one
mark if above not given)
Types of testing max 2
- Black box
- White box
- System
- Alpha
- Beta
- User etc
Other
- testing that the stock control system meets the requirements for the showroom
- volume testing

I don't quite agree with CIE here, since all these testing types are inter-related. It's not like a White box and Alpha testing are completely different, in fact, Alpha testing is done in various ways and it is similar to many types of tests as well. Still, this is the maximum they expect from us I guess.

 

[Saad Mughal]

why i cant find it in book?
i still dont get.
please give detailed examples and differences between beta and alpha testing; and between black and white box testing.

http://mattg99.wordpress.com/2011/0...sion-types-of-testing-and-types-of-test-data/

It's not in the books. My teacher introduced these in class but I didn't understand them so I came back home that day and googled and understood all these (long ago). Mohdumar has shared a good link for understanding these, if you still don't get anything, please ask.

 

[Suchal Riaz]

I don't quite agree with CIE here, since all these testing types are inter-related. It's not like a White box and Alpha testing are completely different, in fact, Alpha testing is done in various ways and it is similar to many types of tests as well. Still, this is the maximum they expect from us I guess.

these things are not quite in the syllabus i guess. they are in case a student wants to show extra knowledge. like diffraction, inteference of light and light being ossicilating electric and magnetic fields are correct properties but not in syllabus. these are still given in mark scheme.

 

[Saad Mughal]

these things are not quite in the syllabus i guess. they are in case a student wants to show extra knowledge. like diffraction, inteference of light and light being ossicilating electric and magnetic fields are correct properties but not in syllabus. these are still given in mark scheme.

I know, I read about all those in the IGCSE book (physics) as well. The thing is, you shouldn't know HOW these testing types work or what are they used for. However, you should know that these testing types EXIST and are used for testing data. Just consider them to be TYPES of testing so that you know when a question is asked that Alpha, Beta, White Box, Black Box, Unit, Integration, Field Testing are all types.

 

[Suchal Riaz]

I know, I read about all those in the IGCSE book (physics) as well. The thing is, you shouldn't know HOW these testing types work or what are they used for. However, you should know that these testing types EXIST and are used for testing data. Just consider them to be TYPES of testing so that you know when a question is asked that Alpha, Beta, White Box, Black Box, Unit, Integration, Field Testing are all types.

that sounds better

 

[Saad Mughal]

that sounds better

Yeah. But if you want to learn then you should search them. They're easy to understand and remember.

 

[starship]

What things need to be there in user documentaion and why?

 

[usama321]

What things need to be there in user documentaion and why?

user documentation is to guide the user of the computer system. It contains guidelines about using the computer, loading different programs, countering an error, loading up and shutting down the OS, guidelines about common tasks like printing, connecting to the internet. It is there just to guide a new user of the computer so that he gets familiar with the basics.

 

[Saad Mughal]

What things need to be there in user documentaion and why?

user documentation is to guide the user of the computer system. It contains guidelines about using the computer, loading different programs, countering an error, loading up and shutting down the OS, guidelines about common tasks like printing, connecting to the internet. It is there just to guide a new user of the computer so that he gets familiar with the basics.

Actually, we don't answer like that I think, we state it like this:
- Software and Hardware Requirements: So that the user knows when a compatibility issue is there.
- Troubleshooting guide: So that the user can have a step to step guide to solve a problem.
- Frequently Asked Questions: To answer and/or give solutions to common problems.
- Tutorial: Mostly video, presents the video with instructions on how to run and use the software.
- Sometimes, a document that describes the software and its limitations is also provided so that the user knows WHAT and WHAT NOT the software can do.

 

[Saad Mughal]

Does anyone know where I can get those five computer revision booklets by CIE??

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Computer Studies (0420)/
From AS_0 to AS_Answers.

 

[usama321]

Actually, we don't answer like that I think, we state it like this:
- Software and Hardware Requirements: So that the user knows when a compatibility issue is there.
- Troubleshooting guide: So that the user can have a step to step guide to solve a problem.
- Frequently Asked Questions: To answer and/or give solutions to common problems.
- Tutorial: Mostly video, presents the video with instructions on how to run and use the software.
- Sometimes, a document that describes the software and its limitations is also provided so that the user knows WHAT and WHAT NOT the software can do.

wah jnab wah

 

[Saad Mughal]

wah jnab wah

Kuch cheezayn yaad bhi krni parhti hain.

 

[usama321]

Kuch cheezayn yaad bhi krni parhti hain.

bhai maine to in me se mostly points ms se dekhe the ab tum poora table of contents chahte ho Allah lenient examiner ata farmae

 

[Saad Mughal]

bhai maine to in me se mostly points ms se dekhe the ab tum poora table of contents chahte ho Allah lenient examiner ata farmae

Konse points?

 

[usama321]

Konse points?

loading and shutting down the OS, common tasks, countering error (troublshooting he ho gia) etc

 

[Saad Mughal]

loading and shutting down the OS, common tasks, countering error (troublshooting he ho gia) etc

Patanahi.

 

[Mohammad Farzanullah]

what is polling?

 

[Mohammad Farzanullah]

i m hoping that spreadsheets, databases, logic gates, algorithm and program flowchart, all will come in P1!
they r the easiest and are completely based on common sense!

 

[Saad Mughal]

what is polling?

It's like checking for the devices and whether they require are ready to the processor's orders or not. It is the continuous checking of the status of a device, such as a printer, to check if it is ready to perform the task that is to be given to it by the computer. For example, when you're printer is adjusting ink cartridges and you give a print, the computer waits until the printer has performed the adjustments by continuously checking its status and then gives it the print order.