Computer Science

/Computer Science
Computer Science 2017-03-22T11:35:16+00:00
Year 10 – OCR GCSE in Computer Science
Assessment
The GCSE in Computer Science is a linear qualification, this means all exams and controlled assessment are completed at the end of the course.

There are three units, two externally examined components weighted at 40% each and a non-exam assessment which is weighted at 20%.

Units
Unit 1 Computer systems
Unit 1 introduces learners to the Central Processing Unit (CPU), computer memory and storage, wired and wireless networks, network topologies, system security and system software. Students will become familiar with the impact of Computer Science in a global context through the study of the ethical, legal, cultural and environmental concerns associated with Computer Science.

This unit is assessed by exam at the end of the course and equates to 40% of the GCSE.

Unit 2 Computational thinking, algorithms and programming
In unit 2 students will be introduced to algorithms and programming, learning about programming techniques, how to produce robust programs, computational logic, translators and data representation. The knowledge obtained in this unit will draw on this underpinning content when completing the Programming Project component (03 or 04).

This is unit is assessed by exam at the end of the course and equates to 40% of the GCSE.

Unit 3 Programming project
In unit 3 students will have to create a computer program that solves a task and while doing so create a report detailing the creation of their solution, explaining what they did and why they did it. Students will have to analyse a problem, create a design, develop solution, test it and then write an evaluation.

Expectations of Students:

Students must be self-motivated, hardworking, committed, have excellent attendance and a genuine interest in computing and mathematics.

Year 11 – OCR GCSE in Computer Science

GCSE CS A451: Computer Systems and Programming

This unit covers the body of knowledge about computer systems on which the examination will be based.

90 minute Exam (40%)

GCSE CS: A451.1 Fundamentals of Computer Systems

This is a theoretical unit covering the OCR GCSE Computing Fundamentals of computer systems, which provides a foundation for the remaining topics in A451.

It describes the elements of a computer system and the importance of computers in the modern world. The need for reliability and adherence to professional standards is covered, as well as ethical, environmental and legal considerations when creating computer systems.

GCSE CS: A451.4 Data Representation

This unit covers all of the theory of database management systems and relational databases required by the OCR specification, with plenty of practice in answering questions similar to those found in the examination. Students learn database theory in a practical way by using MS Access to:

  • examine and edit an existing table structure, using suitable field types and adding in appropriate validations
  • understand the relationship between entities and tables and create a relational database involving two tables
  • create queries, an input form and report using data from one or both tables

GCSE CS: A451.5 Databases

This unit covers all of the theory of database management systems and relational databases required by the OCR specification, with plenty of practice in answering questions similar to those found in the examination. Students learn database theory in a practical way by using MS Access to:

  • examine and edit an existing table structure, using suitable field types and adding in appropriate validations
  • understand the relationship between entities and tables and create a relational database involving two tables
  • create queries, an input form and report using data from one or both tables

GCSE CS: A451.6 Communication and Networks

The unit begins by explaining the Internet and communications protocols, with practical exercises to help students understand the role of packet switching and DNS.

The lessons move on to look at client-server networks and network topologies, with further material on the merits of various network security measures. Techniques and the importance of compression in the transmission of files over the Internet are covered, and a final lesson describes the basics of HTML and website development.

GCSE CS A452: Practical investigation

An investigative computing task, chosen from a list provided by OCR, Controlled assessment which assesses the following: research, technical understanding, analysis of problem, historical perspective, use of technical writing skills, recommendations/evaluation.

20 hour Controlled Assessment (30%)

GCSE CS A453: Programming Project

Students will need to:
• Understand standard programming techniques
• Be able to design a coded solution to a problem
including the ability to:
– Develop suitable algorithms
– Design suitable input and output formats
– Identify suitable variables and structures
– Identify test procedures.
• Create a coded solution fully annotating the
developed code to explain its function
• Test their solution:
– To show functionality
– To show how it matches the design criteria
– Identifying successes and any limitations

20 hour Controlled Assessment (30%)

Possible career Opportunities:

  • Information systems manager
  • IT consultant
  • Multimedia programmer
  • Systems analyst
  • Programmer
  • Web developer
  • Games designer/developer

 

 

 

Get in touch

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Christ the King Catholic High School
Mr D Callagher
Headteacher
Lawrence Avenue
Frenchwood
Preston
PR1 4PR
Tel: (01772) 252072
Email: reception@ctk.lancs.sch.uk

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