The Knights Templar School

The Knights Templar School

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How to improve in Computing - year 8

1 Develop a better understanding of the names of a range of operating systems

What does this mean?

Students need to understand that there are other operating systems available besides Microsoft Windows. These are Linux and MacOS and where they are used.

For example MacOS is used on Apple Mac products, iPhone, iPad and Macbook.

2 Improve your skills in explaining the main features of an operating system

What does this mean?

Each operating system has unique features. This can be the type of computer it will work on. For example, the MacOS will only work on apple Mac products and Android will only work on touchscreen devices like smartphones and tablets.

3 Identify more common similarities and differences between operating systems

What does this mean?

Even though each operating system has unique features, it will have things in common with other operating systems. For example both Windows and MacOS will work on computers and laptops with the difference being that the MacOS has to be on a computer or laptop built by Apple.  

U1.4 A better understanding of the differences between proprietary and open source software

What does this mean?

The difference between proprietary and open source software is that proprietary software is software that is purchased and open source is software that is free to users. For example, proprietary software id Microsoft Office and open source software is the programming language Python.

 

5 Improve your knowledge of the names of the main internal components of a computer

What does this mean?

The inside of the computer contains many parts. For example, the motherboard, processer, and graphics card too name but a few. Students need to be able to identify the name of these parts by seeing them outside of a computer.

6 Increase your understanding of different number systems

What does this mean?

Students need to understand that all a computer understands is binary. This is a series of 1s and 0s or On and Off. This referrers to the electrical current passing through the motherboard and other components. The students need to understand how to convert these 1s and 0s into everyday number system.

7 Develop your understanding that all computation requires some form of input

What does this mean?

Students need to understand that to perform any actions on the computer the user needs to input this information. For example, using the keyboard or mouse to type a word document. Playing games requires the user to use a joystick or voice control this is also a form of input by telling the computer what to do.

8 Develop your knowledge of what is under the hood of a computer and code breaking

 

What does this mean?

 

Student will look in more detail of the components of a computer and their functions. Also, they will understand how code breaking was important during the Second World War and how it was carried out using an electronic machine which led to the development of the first computer.

 

9 Increase your understanding that computers need input data that is stored in memory

 

What does this mean?

 

Following on from comment U2.3 students need to understand that besides having to input information into the computer that each of these instructions are store in the computer memory. This could be in the short-term memory which will only store the information temporally, or in the long-term memory meaning it is stored until the student deletes this information.

 

10 Develop your understanding of a function machine including multiplication and division

What does this mean?

After understanding that computers use binary a series of 1s and 0s, the students need to understand that a computer will carry out a series of calculations using this number system. Students will learn how to both multiply and divide using this number system.

11 Improve your knowledge of the functions of a range of complex internal computer components

What does this mean?

After understanding the components inside a computer see comments U2,1 and U2.4 the students need to understand that these components are made up of small and complicated parts. For example, that the computer processer is made up of tiny an integrated circuit which carry out various instructions to help the computer work.

12 Further develop your skills to use multiple methods to convert between decimal and binary

What does this mean?

After students understand the binary number system which is a series of 1s and 0s. they students need to understand that different methods can be used to convert this number system into everyday numbers. For example:

Worked example: Denary number 84

First set up the columns of base 2 numbers. Then look for the highest 2n number that goes into 84.

  1. Set up the columns of base 2 numbers
  2. Find the highest 2n number that goes into 84. The highest 2n number is 26 = 64
  3. 84 – 64 = 20. Find the highest 2n number that goes into 20. The highest 2n number is 24 = 16
  4. 20 - 16 = 4. Find the highest 2n number that goes into 4. The highest 2n number is 22 = 4
  5. 4 - 4 = 0
  6. Mark up the columns of base 2 numbers with a 1 where the number has been the highest 2n number, or with a 0:

64

32

16

8

4

2

1

1

0

1

0

1

0

0

Result: 84 in denary is equivalent to 1010100 in binary.

To check that this is right, convert the binary back to denary:

(1 x 64) + (0 x 32) + (1 x 16) + (0 x 8) + (1 x 4) + (0 x 2) + (0 x 1) = 84