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OCR Cambridge Nationals in ICT (Level 1/2)

OCR Cambridge Nationals in ICT (Level 1/2). R008 Introduction to Computer Programming. Introduction. Computer programs are used to run most electronic devices in the modern world. They are used in: games phone and tablet applications domestic appliances life-support systems

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OCR Cambridge Nationals in ICT (Level 1/2)

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  1. OCR Cambridge Nationals in ICT (Level 1/2) R008 Introduction to Computer Programming

  2. Introduction Computer programs are used to run most electronic devices in the modern world. • They are used in: • games • phone and tablet applications • domestic appliances • life-support systems • transportation • security systems, and much more.

  3. Apps One of the most popular areas of programming is the development of applications for use on mobile devices such as smartphones and tablets. There are now more than 200,000 apps for the iPad and over half a million for the iPhone. This is a growth market with great opportunities.

  4. Games Programs like Scratch, Game-maker and Games Factory allow young people to begin writing their own games quickly and easily. With the increased use of interactivity on websites, mobile devices and eLearning products, the development of games is a huge area.

  5. Websites Many modern websites use programming languages such as XML, PHP, Ajax, Javascript and HTML 5 to add quizzes, photo galleries, animation, games and video to their pages. This makes for a much more engaging visit as the website becomes something of a showcase for the organisation.

  6. Analysis Before the programming can begin, there needs to be an analysis. This includes deciding the best language to use and what input and output is required. Flow diagrams and design plans will help to get ideas on paper and make sure the finished item is fit for purpose and works as it should.

  7. Languages There are many programming languages and the choice of which is best will depend on the programto be written. Object-oriented (VB, VBA, iphone Apps), procedural (Basic) and scripting languages (Action Script, JavaScript) are all different and will produce different types of program.

  8. Testing Writing the program involves the use of constants, variables, operators, calculations and loops within the many lines of code. It is essential that the program is tested for errors. Programs that crash, freeze and unexpectedly shut down are useless and not suitable for purpose. A test plan is essential for success.

  9. You will learn… How to produce a computer program. How to use functions, variables and constants. How to write and check computer code for accuracy. How to decide on the best language to use. How to plan and deliver a successful program. How to test for problems and errors.

  10. Thank you for using this OCR resource Other OCR resources are available at www.ocr.org.uk To give us feedback on, or ideas about, the OCR resources you have used e-mail resourcesfeedback@ocr.org.uk

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