AS/A2 computing 2013 July batch

[Ravichandran]

Dear students of Block 6 AS computing, welcome to the computing class. I am your facilitator Dr.Ravichandran ( you can call me Dr.Ravi), I will be your course facilitator for AS computing and A2 computing. I will start communicating with you in this discussion forum - where you can start posting your queries and useful resources.

You are highly encouraged to interact with me and also with your peers as the class begins from 30th July 2013.

All the best and keep moving. Do not hesitate to ask and send your queries if you have one.

Regards,

Dr.Ravichandran

i HAVE ATTACHED THE SYLLABUS TOO.

YOU CAN DOWNLOAD THE ATTACHMENT FILE.

[Ameer Sorne]

thanks for the  attachment.

[Ravichandran]

Dear Block 6 students, please check the different types of floppies - photo posted in this forum by clicking the photo option in the menu bar.

[Muhammad Aiman bin Hashim]

Greetings Dr. Ravi. This is Aiman, one of your students. 

I have some questions. Can the floppies be rewritten with new data and how it deletes the old ones ? 

Thank you.

[Ravichandran]

Yes, the floppy can be re-written. This can be done in two ways.

1) by formatting the disk and then writing the new data

2) by deleting the old data and writing the new data.

Now. you may think what is the difference between the first one and the second one. Let us take up this in classroom and check what we get from other students.

Regards,

Dr.Ravi

[Ameer Sorne]

yesterday, on our first lesson, u taught about the floppy disks and data, about ASCII (American Standard Code for Information InterChange) , about capital A having 65 as the code and 97 as small 'a'.

I wonder, about the floppy disks back in your days, how's the disk reader/writer looks like?

thanks.

[Nabil Izzularif Bin Mohd Safiai]

why does 8 inch floppy has smaller memory than 3 and a half inch despite the different in size?

[Raid Syamil]

Hello Dr Ravi,

 Yesterday I learned more than I can possibly know about floppy disks and how they go about functioning. It was very interesting on how binary codes are applied onto the disk to record information. The ASCII (American Standard Code for Information InterChange) is equally interesting as well.

Regards,

Raid

[Yuganesh]

Hi Dr. Ravi. I am Yuganesh and learned about ASCII (American Standard Code for information interchange ). Every words will be known as 8 bit characters representation. For instance, A is equivalent to 65 and a is 97. I would like to know whether CD has the same operating principle.

[Mohd Afif Farhan b. Mat Said]

Greetings Dr.Ravi. I am Afif Farhan. 

Yesterday we were learning about some of the 8 bit characteristics of the letters. do we need to remember all the code for all the button in the keyboard? 

[Nabil Izzularif Bin Mohd Safiai]

with regard to aiman's quetion and Dr Ravi's answer, I thougt that formatting the disk may cause the disk lose all the previous data but by deleting and writing new data , we can keep some selected data

[Maizatul Akmal Mohamad]

greets Dr. Ravi.

yesterday you told us about the ASCII and you mentioned about the the codes for capital A, B and C. I wonder are there only codes for these three alphabets or there are codes for each letter from A to Z? how about numbers? do they have their respective codes? tq

[Ahmad Ammar Rashid]

Greetings Dr Ravi, its Ammar here.

Your introduction yesterday about the floppies yesterday was very informative. And looking at the pictures of the different size floppies back in your days, i was intrigued as to how does the reader/writer of the 8 inch floppy looks like? Also, does formatting and deleting the data on the floppy really has a difference? 

Thank you.