This should help fill in the gaps for those who did not do Int 2 last year.
Int 2 Data Representation – Revision
Category Archives: Revision
Good luck
Right I am calling it a night on the chat room. Remember the exam is at 9am tomorrow!
Bring
- Blue or Black Pen (better yet bring 2 of each)
- Calculator (you did buy the £1 binary calculator I told you to?)
- Ruler (you never know)
- Correction fluid (you don’t need this, a single line will do)
- Your books to return to me (I don’t need the notes)
Remember
- Check that you have the right paper in front of you and listen for any special instructions.
- Look at the marks for each question, 2 mark questions require 2 distinct points.
- Answer fully and in sentences.
- Leave gaps if you need to come back to a question, leave gaps between questions in case you want to write more later.
- Don’t leave early, you have nothing more important to do. You can’t add the one mark answer that passes the paper, if you are sitting in McDonald’s.
- Take your time, think if I would be happy with the answer, add examples to clarify your points.
Feel free to come round to my room afterwards to discuss the paper.
Twas the night before C^H the exam
I have opened up the Glow Chat area. If you want a question answered please post it as a comment to this article or on the chat area.
Good luck for tomorrow.
A couple of questions from today
Jonathan asked me a couple of very good questions today and I thought I would share my answers.
What is the difference between a linear CCD and a Array CCD?
- A linear CCD is used in scanners and consists of a row of CCDs that moves down the document.
- A CCD array is used in digital cameras and consists of a grid of CCDs as shown in this picture
Is it just CCDs that are used in digital cameras.
- Some cameras use cheaper CMOS sensors, these sensors are not as fast and do not produce the same quality as a CCD. Wikipedia has this to say.
What does WRL stand for
- This has taken a fair bit of research and the answer was on the blog the whole time… “World Description Language”. Personally I take the view of a lot of the websites WRL is the file suffix for VRML files and stands for WoRLd.
So with all this on the blog I updated the Multimedia Glossary, after all what else did I have to do.
Panic dot com
Right you have one week to go and some of you sat Biology today and have no exam till computing. You’re a bit panicked and want a plan. Here is what I would do with these few days
Youtube
Right I have created a new youtube resource area, things work a lot better when we have access from school 🙂
I will create a number of play lists both for content we create and for content I find on youtube. So far I have only created a Higher Computing Playlist.
Yaca Paca
I just found this site, I have assigned some quizes that you can try out use this access key 153405-sQxx
I will wipe this class set just before the exam. Feel free to use a fake name, although the site does look quite good and I will be spending some time over the summer checking it out.
FAQ – Fetch Execute Cycle
Simple description, referring to the appropriate buses and control lines, of the steps in the fetch-execute cycle
FAQ – Structure Diagrams
Description and exemplification of pseudocode and one graphical design notation (structure diagram or other suitable) including data flow.
A question from a Pupil
Hi, I’m currently studying computing on Scholar and one of the answers to a question I disagree with. The question is “a program stores the user IDs of 20 SCHOLAR users. Which of the following would be the most efficient way of storing this information?” and the possible answers are:
- 20 integer variables
- an array of integers
- an array of strings
- 20 string variables
Scholar says the answer is an array of strings, but why? I thought the answer would be an array of integers, as to log into Scholar you just use numbers. Please explain why it is an array of strings ?
