This is an electronic circuit simulator.

To turn a switch on or off, just click on it.If you move the mouse over any component of the circuit, youwill see a short description of that component and its current state in thelower right corner of the window.Tomodify a component,move the mouse over it, click the right mouse button (or control-clickif you have a Mac) and select “Edit”.

How Jobs met Woz. Jobs and Woz (that's Steve Wozniak) were introduced in 1971 by a mutual friend, Bill Fernandez, who went on to become one of Apple's earliest employees. Circuit simulation gives students a fast and fun practical learning tool. A software solution allows instructors to prepare and re-use virtual labs. Flexible licensing gives freedom for classes and assignments to be completed anywhere. Learn more about Proteus in Education.

The 'Circuits' menu contains a lot of sample circuits for you to try.

Full Screen version.

Directions.

Standalone (offline) versions.

Index of Circuit Examples. (Polish version)

Javascript version. Latest changes here, including subcircuits.

Huge thanks to Iain Sharp for the Javascript port. You can still use the original Java version. More acknowledgements in the about box.

How to insert squared or any other specific symbol on Mac computer?

Even simple operations on a computer can sometimes be frustrating. For example: you may be typing an email and wish to use the squared symbol that you cannot find on the keyboard or within the editor. This particular example is a frequent problem that many people encounter. As it is not a significant issue, there is actually little information on how to find this elusive symbol.

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Rather than having to browse through various forums and websites, we describe in this simple guide how to use the keyboard to type special characters.

Table of Contents:

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How to insert various symbols

To begin, we will learn how to insert miscellaneous symbols on a Mac computer through most applications. Some apps include their own editors with an insert symbol function, however, these might not have the symbol you are seeking. As a solution, you can access the Mac OS default symbol list by simply clicking the Control, Command, and Spacebar combination. This shortcut will launch a Character viewer, which includes many different symbols (including the squared symbol). The squared symbol is under the 'Digits - All' section. If you cannot find this category in left sidebar, click the Gear icon to enable it.

How to insert squared symbol in Pages app

In the Pages app, it is easy to access the squared symbol. Enter the number and followed by the '2' digit. For example, 452. Then highlight the '2' by dragging over it, or holding down shift and pressing the arrow left. Click Format in the menu at top of the screen, select Font, and then choose Baseline. Locate Superscript, which changes the '2' into a squared symbol. Beneath Superscript, the Subscript option allows you to enter logarithms.

How to insert squared symbol in Mail app

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To enter specific symbols in Messages or Mail applications, the method is similar to that used for the Pages app. Type the text or number, and then add an additional digit '2'. Highlight the '2', click Edit in the menu at the top of the screen and look for Emojis & Symbols (or Special Characters for earlier Mac OS versions). This will open the same Character Viewer window as in the shortcut described above (the shortcut also works here).

Video Showing How to insert squared symbol on Mac computer: