This document provides an overview of computer programming and some common areas where programming is used. It discusses how programming is used in games, mobile apps, websites, domestic appliances, and more. It also summarizes different types of programming languages like object-oriented, procedural, and scripting languages. The document emphasizes the importance of planning, testing, and debugging programs to ensure they work properly.

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

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

4. One of the most popular areas of programming is the
development of applications for use on mobile
devices such as smartphones and tablets.
Apps
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.

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

6. 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.

7. Before the programming can begin,
there needs to be an analysis.
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.

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

9. Writing the program involves the use of constants,
variables, operators, calculations and loops within the
many lines of code.
Testing
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.

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

11. 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