ePanorama.net

All about electronics and circuit design

Remember Spectre and Meltdown

Here is an overview of Spectre and Meltdown vulnerabilities that got a lot of publicity in January 2018. Meltdown and Spectre the two original transient execution CPU vulnerabilities. The Meltdown and Spectre vulnerabilities were considered “catastrophic” by security analysts. The vulnerabilities are so severe that security researchers initially believed the reports to be false. In

Telephone cards hacking history

Who remembers Phone booths and above all phone cards? Phone cards were a technological advance in the world of public telephone traffic in the 1990s. They allowed to make calls on many phone booths in Finland and phone cards were also a popular collector’s item, collected both used and unused: Telecom companies have placed advertising

TTL logic is 60 years old

Transistor–transistor logic (TTL) is 60 years old this year based on the following article (Wikipedia claims this happened already in 2023). TTL became the foundation of computers and other digital electronics. TTL integrated circuits (ICs) were widely used in applications such as computers, industrial controls, test equipment and instrumentation, consumer electronics, and synthesizers. The 7400

Erratic touchscreen behavior

Ghost touches on a touchscreen occur on smart phones and tablets when the screen registers touches or taps without any actual input from the user. This issue can be frustrating, but there are several potential reasons and solutions for it: Screen Calibration: Check if your device has a screen calibration option in the settings. Calibrate

Blue Screen of Death to Linux

It might not be the year of the Linux desktop yet, but Linux distributions will soon have their own Blue Screen of Death message. Windows’ infamous “Blue Screen of Death” (BSOD) is a bit of a punchline. People have made a hobby of spotting them out in the wild, and in some circles, they remain

Online coding tools

Earlier when you wanted to try a programming language, you needed to install compiler and IDE software to your computer. Now there are many on-line tools that allow you to test programming with many programming languages. Many languages on one service: https://onecompiler.com/ https://tio.run/# https://www.codechef.com/ide https://ideone.com/ https://www.codingninjas.com/studio/online-compiler JavaScript https://jsfiddle.net/ C and C++ https://www.programiz.com/c-programming/online-compiler/ https://godbolt.org/ https://cppinsights.io/ Python

Bullshit HiFi products

I Gave Money to Criminals – feat. Dankpods https://youtu.be/JMAu_mCxoII?si=5j-GDydbQhn45NSS “Around every corner, it feels like people are trying to scam you out of your money. But no one tries harder than audio companies. No I’m not talking about, Apple, Sony, Sennheiser or Samsung. I’m not even talking about hi-fi audio companies like Marantz, Bang and