101 Computing

Rubik’s Cube Challenge

Administrator — Fri, 17 Jul 2026 11:14:33 +0000

Have you ever wondered how a computer keeps track of all the coloured squares on a Rubik’s Cube? Although the puzzle looks complicated, each face of the cube can actually be stored using a simple 3 × 3 two-dimensional (2D)…

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Autonomous Cave Exploration Drone Algorithm

Administrator — Tue, 14 Jul 2026 14:29:17 +0000

Imagine being tasked with exploring a vast underground cave system where no human has ever been before. Narrow passages, uneven ceilings, jagged rocks and sudden drops make it far too dangerous for people to enter. Instead, scientists use autonomous drones…

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Sailing the Seven Seas (Python Challenge)

Administrator — Tue, 14 Jul 2026 11:05:16 +0000

Long before radios and GPS, sailors relied on teamwork, experience and a good rhythm to keep a ship moving. One tradition that became famous around the world was the sea shanty. These songs were sung by crews as they hoisted…

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A* Short Path Algorithm Interactive Task

Administrator — Tue, 07 Jul 2026 13:53:26 +0000

Finding the shortest route between two places might sound like a simple task, but when a network contains hundreds or even millions of possible paths, computers need an efficient way to decide which route to follow. This is where search…

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Dijkstra Short Path Algorithm Interactive Task

Administrator — Tue, 07 Jul 2026 13:24:44 +0000

Every time you use a sat nav, plan a journey on a map app, or search for the fastest route across a transport network, you are using ideas from graph theory. A road map can be represented as a graph:…

The post Dijkstra Short Path Algorithm Interactive Task first appeared on 101 Computing.

Vector Based Graphics Editor

Administrator — Thu, 02 Jul 2026 14:12:11 +0000

Not every digital image is stored as a collection of coloured pixels. While photographs and pixel art are usually saved as bitmap images, many logos, icons, maps and illustrations are created using a completely different method called vector graphics. Instead…

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Bitmap Image Simulator

Administrator — Thu, 02 Jul 2026 09:59:44 +0000

Every photo, icon, emoji and piece of pixel art you see on a computer has to be stored digitally. But have you ever wondered how a computer can save an image using nothing more than 1s and 0s? One of…

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Sound Sampling Simulator

Administrator — Tue, 30 Jun 2026 13:27:03 +0000

Have you ever wondered how your computer or smartphone stores music, podcasts or voice recordings? Although sound travels through the air as a continuous (analogue) wave, computers can only store digital data made up of 1s and 0s. So how…

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Interactive Trace Table Challenge

Administrator — Mon, 29 Jun 2026 13:00:25 +0000

Put your programming skills to the test with this interactive Trace Table Challenge! Whether you’re learning to code or preparing for your GCSE Computer Science exams, trace tables are one of the most useful techniques for understanding exactly how an…

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CSS Code Builder

Administrator — Fri, 26 Jun 2026 11:25:30 +0000

Put your knowledge of the main CSS selectors and properties to the test with this interactive CSS Selector & Property Builder! Complete a series of drag-and-drop challenges to demonstrate your skills in styling HTML web pages using CSS. Choose the…

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