GCSE Computing OCR Fundamentals Of Computer Systems

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2013 Summer Question 3

“A game console and a desktop computer are two different types of computer system. Describe how a game console is similar to a desktop computer, with reference to input, output and storage” (6 mark)

Answer

Points may include:

  • Game console has input devices, usually specialised controllers but also keyboards, microphones etc similar to desktop computer
  • Output is similar to desktop computer on a screen and speakers (sometimes using the same standards eg HDMI, DVI)
  • Game console usually has an optical drive so that the software to be run can be inserted. Many also have a hard disk drive which is the same as that used on a desktop computer.

High Level Response (5–6 marks)

A detailed comparison of game consoles and desktop computers referring to input, output and storage devices. There will be few if any errors in spelling, grammar and punctuation. Technical terms will be used appropriately and correctly.

Medium Level Response (3–4 marks)

A comparison is made between desktop computers and game consoles, with at least two of input, output and storage devices mentioned but may not be described in detail. There may be occasional errors in spelling, grammar and punctuation. Technical terms will be mainly correct.

Low Level Response (1–2 marks)

There is an attempt to compare game consoles and desktop computers but some of the statements are incorrect or irrelevant. Information will be poorly expressed and there will be limited, if any, use of technical terms. Errors of grammar, punctuation and spelling may be intrusive.

2011 Winter Question 6

A shopping centre uses several remote-controlled CCTV cameras for security. An operator uses a computer to watch, control and record the output of the cameras. State an input, output and storage device which will be needed by the computer. For each, explain the reason why it is needed:

  1. Input Device -  [1]        Reason -  [2]
  1. Output Device -  [1]     Reason -  [2]
  1. Storage Device -  [1]    Reason -  [2]

Answer

Input device:

Joystick:

  • To control the CCTV cameras
  • ... to zoom/tilt/pan
  • ... as they allow precise movements (in 2 axis)

Keyboard:

  • To type commands into the system...
  • ... to perform complex control tasks
  • Key presses can be used to control the cameras

Output device:

  • Monitor/Array of monitors
  • Show the output of cameras
  • Showing multiple cameras at a time

Printer

  • To print hard copy images from the recordings
  • eg to be used as evidence

Storage device:

  • hard disk drive with large capacity
  • to record feed from all cameras...
  • ... simultaneously
  • ... allows direct access to any part of the recording

rewritable large optical drive/removable flash storage

  • to save recordings (eg for a given day)
  • for archiving purposes

Other valid answers will be accepted:

(1 mark for naming the device and up to 2 for explaining why needed)

2013 Winter Question 7

The accident and emergency department of a hospital uses a computer system to decide the order in which patients are treated. Describe advantages of using a computer system instead of a person to decide the order, and the need for this system to be reliable.

The quality of written communication will be assessed in your answer to this question..( 6 marks).

Answer

2012 Summer Question 11C

An online game is developed by a large team of programmers. Explain, with examples, why a large team of programmers need to agree standards when developing the game. The quality of written communication will be assessed in your answer [6]

Answer

2011 Winter Question 9

Computer technology has changed the ways in which teenagers interact with each other. Explain how developments in software and hardware have enabled new methods of communication among teenagers.

The quality of written communication will be assessed in your answer to this question.(6 marks)

Answer

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2013 June Question 4a

4 (a)

(i) State the purpose of an input device in a computer system [1]

(ii) State the purpose of an output device in a computer system [1]

Answer

4(a)

(i) - To enter data from outside the system for processing. [1]

(ii) - To return the results of processing. [1]

2013 Winter Question 11C

Each user can upload several pictures.

Each picture has a date and a comment.

The personal data of users is stored in a table called USER.

The data about the pictures is stored in a separate table called PICTURE. Explain why the data about the pictures should be in a separate table, and how the tables can be linked. (4 marks)

Answer

2013 Summer Question 9

A school uses off the shelf, proprietary software for managing pupils’ attendance, and customised,open source software for managing pupils’ examinations.

(a) A school uses off the shelf, proprietary software for managing pupils’ attendance, and customised, open source software for managing pupils’ examinations. [2]

(b) Describe the difference between proprietary and open source software. [2]

(c)* Explain the legal issues that the school should consider when choosing the software for managing pupils’ attendance and examinations.

The quality of written communication will be assessed in your answer to this question. [6]

Answer

(a) Off the shelf software is available for anyone to acquire and use /commercially available

Custom written software is made especially for the school/ for a specific user

(b) Proprietary software cannot be copied/altered (without permission of the copyright owner)

Open source software can be modified (provided it remains open source)

Proprietary software is distributed only as a compiled program/source code not available

Open source software is distributed with its source code.

(c) Points may include:

Must abide by software licence

So for open source, the school will be able to make modifications/customisations to exams system

But will probably have to make these modifications also available to other users

And credit all previous contributors in the code

Will have to purchase off the shelf attendance package legally

Software must be able to ensure all legal data protection requirements are met.

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