The first video explains why computers use binary to store data.  The difference between a bit, nibble, byte, kilobyte, megabyte, gigabyte, terabyte and petabyte is explained.  These are known as measurements of capacity, or how much data can be stored either in memory or on secondary storage devices.

The...

This resource, aimed at lower ability Key Stage 4 students, introduces the concept of data compression, specifically Run Length Encoding. Students are asked to use an online tool to convert names into binary (ASCII), this binary data is then subjected to Run Length Encoding and encoded binary compared to the...

Using a spreadsheet as a grid of 'pixels', this computing activity teachers how 1's and 0's can store image data. The classroom exercises use images with increasing pixel resolution, looking at how this affects the clarity of the image. Moving from black-and-white images, the students then use grids of colour...

In this resource, the students are asked to look at various aspects of data security. In part this covers cyber security but it also looks at data integrity and ensuring that users data does not become corrupt through various means. There are a variety of activities provided, and all of the necessary resources are...

Data recovery is only half of this book. The other half deals with prevention. The author shows you several time-tested ways of utilizing preventive maintenance. 

This lesson consists of a presentation on Data Representation, looking at how binary numbers work (and concludes with an exercise in converting binary numbers to denary). Students consider primitive monitors with q bit colour depth, represented characters and other data. before investigating how coloured images are...

This resource consists of 2 A3 Active Learning worksheets which could be used to either introduce and record information about data representation, or as a revision tool. There are plenty of activities across the two pages that would allow students to either recap work they have previously covered or to research...

This resource contains a number of activities and worksheets to support the topic of binary numbers. The content looks first at binary numbers, how they represent denary numbers, converting between the two, binary addition and using two's complement to represent negative numbers and thus perform subtraction. These...

Instant Maths Ideas are aimed at teachers of Key Stage Three but could also be appropriate for use with other age groups. The complete resource contains all eight subject topics together with appropriate resource materials. Each topic has also been included as a separate resource for ease of use. Each topic...

Two topics that support the database topic are covered in this presentation. The emphasis at A level is investigating the technical architecture rather than application. These are two important topics often tricky to find resources for. 

'Troubleshooters are ICT unit plans' designed to build skills, confidence and understanding, providing a wide range of materials for teaching specific QCA units.

They provide watertight support for each of the three main strands:

• Control and datalogging
• Spreadsheets
• Databases...

'Troubleshooters are ICT unit plans' designed to build skills, confidence and understanding, providing a wide range of materials for teaching specific QCA units.

They provide watertight support for each of the three main strands:

• Control and datalogging
• Spreadsheets
• Databases...

'Troubleshooters are ICT unit plans' designed to build skills, confidence and understanding, providing a wide range of materials for teaching specific QCA units. 

They provide watertight support for each of the three...

This series of activities is aimed at upper-primary school children and above, and is intended as an introduction to organising and storing data.

Kinaesthetic activities, paper-based and online tasks are used to support teaching of:

*Branching databases

*Fields and records

*Searching...

This report gives details of a series of computing lessons designed to relate fundamental concepts of database use and design to children in Primary and Secondary Education (ages of 6 to 16). The skills and concepts developed in...