History of Resistor Components

The resistor is one of the most fundamental components in electrical circuits, essential for controlling the flow of electric current. Resistors have been critical in the development of electrical engineering and electronics. The history of resistors spans centuries, from early scientific discoveries to modern-day applications in everything from consumer electronics to industrial machinery.

1. Early Discoveries in Electricity (1600s-1800s)

History of Integrated Circuits (ICs)

The Integrated Circuit (IC), a fundamental technology in modern electronics, allows multiple electronic components such as transistors, resistors, and capacitors to be integrated into a single chip. The invention and evolution of ICs have been pivotal in the miniaturization, performance, and affordability of electronic devices, from computers to smartphones. Here's a detailed history of Integrated Circuits:

1. Pre-IC Era: Early Electronic Components

History of Transistors

The "transistor" is a fundamental electronic device that revolutionized the electronics industry, enabling the development of modern computers, smartphones, and countless other technologies. Its invention and evolution transformed the way electrical signals are amplified, controlled, and processed.

1. Precursor Technologies

Before the transistor, the vacuum tube (or thermionic valve) was the primary electronic component used for amplification and switching. Vacuum tubes, invented in the early 20th century, were bulky, inefficient, and prone to failure. They were primarily used in early radios, televisions, and telecommunication systems.

 

2. Invention of the Transistor (1947)

Edit your images in Photoshop Express

Learn to edit your images in Photoshop Express

Photos often need a bit of touching up and editing. Thanks to the power of your Android device, you can now do just that.

You don’t always take the perfect picture on your phone, and even if you do, you may want to add some fun effect to it. Using Photoshop Express, you can tinker around with images, stretching, flipping, saturating, filtering and many other quick, simple visual effects.

It should be pointed out that this program is in no way as powerful or plentiful – and therefore as useful – as its bigger, desktopbound brother, but it is fun, very simple to use, and can actually prove genuinely useful in the right circumstances.

It’s not just a simple case of editing your images and leaving it at that, though. Photoshop Express allows users to upload their images through Photoshop.com, Facebook or TwitPic, meaning your newly touched-up images can be instantly shared with friends and family alike, showing off your editing skills to the world.

Recover Deleted Files

Recover Deleted Files with Free Software

Ack! The computer ate my term paper! We've all been there at some point. You delete an important file, somehow it skips your Recycle Bin altogether, and for all practical purposes, it's disappeared into the ether. But before you hit the big red panic button, there's a very good chance that your file is still alive and kicking somewhere on your hard drive—you just need to know how to find it. With the right tools, finding and recovering that deleted file can be as simple as a few clicks of your mouse.

Part I: The Overview
Ok, so you've lost an important file. Don't panic. Take a breath, and let's see if we can find it. Before you go into full-on file recovery mode, make sure you double-check the folder you had saved it in and the Recycle Bin or Trash. Still nothing?