Sorry yeah, I have a file for the mark scheme, I'll attach them both I'll do pictures for diagrams and type out the other questions, ignore my answers XD:

Question Paper:

1) A computer system is made up of software andhardware.
Explain what is meant by these two terms. ( 2 marks )

2) The data bus, control bus and address bus are three important parts of a modern computer.

a) In this context, explain what is meant by the term bus. ( 2 marks )

b) Fill in the gaps in the paragraph below.
The data bus can be used to transfer data and ______ between the main memory and the processor. The control bus carries control signals. An example of a control signal is __________________________. ( 2 marks)

c)

3) When writing a program, a programmer could use an assembly language, a high level imperative language or a high level declarative language.

Outline the major difference in each of these three approaches. For each language type, your answer could include:

•

advantages and disadvantages compared to other language types

•

how the programmer would express their programs

•

what translation software could be used, if applicable

•

a situation where it might be the most appropriate choice

In your answer you will be assessed on your ability to use good English and to organise your answer clearly in complete sentences, using specialist vocabulary where appropriate. ( 8 marks )

4a)

4b)

4c) What is the name commonly associated with the statement A + B = NOT(NOT(A) . NOT(B)) ( 1 mark)

4d) Simplify the Boolean expression below
A.B.NOT(C) + A.NOT(C)
Show each stage of your working in the space below ( 3 marks )

5) In 1995, a high capacity hard disk drive had a storage capacity of 512 megabytes. In 2012 a typical hard disk of the same physical size had a capacity of 1 terabyte.

5a) Describe the principles of operation of a hard disk drive. ( 4 marks )

5b) How many times greater is the storage capacity of a 1 terabyte hard disk drive than that of a 512 megabyte hard disk drive?
Show each stage of your working. ( 2 marks )

5c) Give one development in the design of hard disk drives that has enabled this increase in storage capcity. ( 1 mark )

5d) If you are considering purchasing a high-end desktop or laptop you might be offered the option of a solid-state drive (SSD) rather than a traditional hard disk drive. A solid-state drive is a data storaqe device that uses solid-state memory, similar to that in USB flash drives (memory sticks), to store data that is accessed in a similar way to a traditional hard disk drive.
Ignoring any differences in price and assuming that both drives have the same capacity state two reasons why you might choose the solid-state drive. ( 2 marks )

6a) Explain the differences between the World Wide Web and the Internet
(4 marks)

6b) Major parts of the Internet run on a packet switched network.
What is meant by the term packet switching? (2 marks)

6c) A packet being sent across the Internet may contain the details of a socket for example 12.23.45.89:80. (2 marks)
In the previous example:
i)What does 12.23.45.89 represent?
ii)What does 80 represent?

7a) (4 marks)

7b) Style rules defined in an external style sheet are to be used to control the look and layout of the page for which the HTML code is provided in Figure 2.

7bi) One of the style rules is:
p { font-family: Arial; color: blue; }
Describe the effect of this style rule on the web page. ( 1 mark )

7bii) The following HTML code is added to the body of the page.
<div id="header">Welcome to the school library</div>
Write a style rule so that only the text "Welcome to the school library" displays as green coloured text with font size 36 point. ( 3 marks )

8) Students often search online for music files and then download them to their computer, mobile phone or music player.

8a) State the full name of the law that students might have broken by downloading music files in this way. ( 1 mark)

8b) State two arguments against music being available for free on the Internet. Your answers should not refer to the law asked for in part (a). (2 marks)

8c) Many websites now offer the ability to download music files which are without any DRM(Digital Rights Management) protection.
State two advantages to students of DRM-free files ove rfiles that have DRM restrictions. ( 2 marks)