Due a week on Tuesday (28th). Make sure you have read over your notes.
These revision notes might help.
Due a week on Tuesday (28th). Make sure you have read over your notes.
These revision notes might help.
A big thanks to Christy for bringing this to my attention.
A new technological enhancement to the hard drive could make this technology last a few more years. The big disadvantage with hard drive technology over solid state is speed. This advance could increase the speed of hard drives by hundreds of times.
Here is the original article and here are some break downs, 1 & 2.
You can get these resources from the NLC site. However, I thought I would place a copy here for ease of access.
How to use this resource.
We know that a CPU is made up of The ALU, CU, Buses & Registers. But why is it called a Silicon chip?
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Have a look at this article for a further break down.
Have a look at the questions you got wrong and prioritize your study.
Question | Unit | Topic |
1 | Computer Systems | Peripherals |
2 | Computer Systems | Data Representation |
3 | Computer Systems | Data Representation |
4 | Computer Systems | Networks |
5 | Computer Systems | Data Representation |
6 | Software Development | Design |
7 | Software Development | Constructs |
8 | Software Development | Constructs |
9 | Software Development | Languages and Environments |
10 | Computer Systems | Structure |
11 | Software Development | SD Process |
12 | Software Development | Languages and Environments |
13 | Computer Systems | Peripherals |
14a | Software Development | SD Process |
14b | Software Development | SD Process |
14c | Software Development | Standard Algorithms |
14d | Computer Systems | Networks |
15a | Computer Systems | Data Representation |
15b | Computer Systems | Data Representation |
15c | Computer Systems | Peripherals |
15d | Computer Systems | Peripherals |
16a | Software Development | Constructs |
16b | Software Development | Constructs |
16c | Software Development | SD Process |
16d | Software Development | Languages and Environments |
19a | Computer Systems | Software |
19b | Computer Systems | Structure |
20a | Software Development | SD Process |
20b | Software Development | SD Process |
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Now remember that this is an advert for a glass manufacturer. However the technology on display is pretty cool.
Think about the technology that would need to be embedded in the glass as well as the networking technology that is used.
As a counter point though I would like to offer another series of choices. What about projector technology?
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Or Augmented Reality Contact Lenses?
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All this technology is quite a way from everyday use, but 20 years ago (1992) students didn’t have mobile phones, no one had the Internet in their pocket and the World Wide Web was one year old.
I have been asked for some examples for you to work at.
Here are two different examples.
Madras College – Review Questions on file size & addressability
Excel exercises- Computer Systems Calculations.
I was sure I had this here already but I can’t find it.
Here are the main formula we used in the computer systems unit
You should also be able to convert from bits, Bytes, Kilobytes, Megabytes, Gigabytes & Terabytes.
For colour depth
O was asked this question today and I can’t help but feel that the pupil wasn’t happy with the answer. So here I go again.
The Control Unit is a sub part of the processor (along with ALU & Registers). It is responsible for the sequencing, decoding and it also synchronizes the execution of the program instructions.
I am not sure that you will be happy with this description so I went to find some support notes and an animation ( I even found it in scratch) to help you to visualise it.
I did find this video though that covers a range of topics.
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So to sum up, the Control Unit, controls all operations of the CPU, It also controls the flow of data along the buses.
Good luck in the prelim. Remember you can ask questions here and I will respond with answers. If you don’t want your name to appear then just say so in the comment and i will copy and past into a new comment.
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