Why Is 74 Used in IC? Meaning of 74 in Logic IC Numbers
Why Is 74 Used in IC? Ever picked up a chip and spotted “74” stamped on it? You’ve seen it on 7400, 74LS00, 74HC595, and dozens more. It feels like a code with no key. But here’s the truth. That number isn’t random at all. It carries real...
What Is Type 3 PCB? Meaning, Standards, Design Rules, and Applications
What Is Type 3 PCB? Ever stumbled across the term “Type 3 PCB” and felt totally lost? You’re not alone. This phrase confuses engineers, buyers, and even seasoned designers. Why? Because it means three different things depending on who’s...
What Is a Type 3 PCB? The No-Fluff Guide for 2026
What Is a Type 3 PCB? The No-Fluff Guide for 2026 Some circuit boards can fail. A Type 3 PCB cannot. This is the board inside your pacemaker. Inside the satellite. Inside the jet. When downtime means lives, missions, or millions, engineers reach for one thing. A Type...
What Are the 30 Input Devices? The Full List Explained
You’re using an input device right now. Whether you tapped a phone screen or clicked a mouse, you sent data to a machine. That’s what input devices do. They’re the bridge between you and your computer. Most people know three: keyboard, mouse, and...
What Are the 20 Examples of Computer Hardware?
What Are the 20 Examples of Computer Hardware? You use computer hardware every single day. From the keyboard under your fingertips to the monitor right in front of you, hardware is everywhere. But can you actually name 20 different pieces of computer hardware? If that...
