A/L ICT Lesson 02 Practice Tool: Evolution of Computing Devices

This is a practice tool for Unit 2 of the Sri Lankan GCE Advanced Level ICT syllabus, Grade 12. It covers competencies 2.1 to 2.4: the history of computing from the abacus to the electronic era, the five computer generations and the switching technology behind each one, classification of computers by technology, purpose and size, input and output devices, secondary storage, the Von Neumann architecture and the fetch-execute cycle, and the memory hierarchy from registers down to offline storage. The unit carries about 4% of the syllabus across 22 periods.

Seventeen activities are grouped into eight modules: sorting exercises, a tappable Von Neumann block diagram, an interactive timeline of the generations, sequencing tasks for the fetch-execute cycle and the memory hierarchy, matching drills for registers and direct data entry devices, flip cards, and a timed ten-question quiz over the whole unit. Your score is kept in your browser, so you can close the page and come back to it.

The tool opens in English. Tap the language button to switch the whole tool to Sinhala. Both languages use the same terms as the Lesson 2 notes, so what you practise here matches what you read there.