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Technology 101: Floppy Disk Revolution: Why 1.44 MB Changed Everything

Floppy Disk Computing Storage

The floppy disk was a portable magnetic storage medium introduced by IBM in 1971. Initially, an 8-inch flexible disk encased in a cardboard jacket holding about 80 KB of data, it evolved into the rigid 5.25-inch version (up to 1.2 MB) in the late 1970s and the ubiquitous 3.5-inch hard-shell format (1.44 MB standard) by the mid-1980s, popularized by Apple’s Macintosh and Sony’s design. Data was written and read via a spinning disk coated with magnetic material, accessed through a sliding metal shutter, making it ideal for transferring files, distributing software, and booting systems. Image source: Wikimedia/George Chernilevsky

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Know Your Car Basics 101: The Essential Guide to Car Dashboard Warning Lights

car

While the exact number can vary slightly depending on your car’s make, model, and year, modern vehicles typically have dozens of warning lights on the dashboard. These lights serve various purposes, from alerting you to critical issues requiring immediate attention to indicating that a particular system is active. To get a precise understanding of all the lights in your specific vehicle, it’s always best to consult your car’s owner’s manual. It will provide a detailed explanation of each symbol and the appropriate actions to take when it illuminates. Image source: https://www.businessinsider.my)

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Technology 101: The Illusive Blue LED – From Myth to Reality

Blue LED light emitting diodes Electrical Electricity Computing

The blue LED, a pivotal innovation in lighting technology, was developed in the early 1990s by Shuji Nakamura, along with Isamu Akasaki and Hiroshi Amano. This invention was significant enough to earn them the Nobel Prize in Physics in 2014. Blue LEDs are essential because they have a higher energy gap, allowing for the production of blue light, which, when combined with red and green LEDs, can create white light. This advancement has led to energy-efficient lighting solutions that are revolutionizing industries and consumer products worldwide. Photo by panumas nikhomkhai

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