The developer of "iDOS 2," a popular DOS emulator for iOS, on Thursday said Apple will remove the app from the App Store for breaking review guidelines.

Apple allowed a DOS emulator into the app store, which allowed gamers to enjoy Windows 3.0 and classic old PC games. But in the blink of an eye, it was pulled.

When the Mac finally shipped in 1984, it was competing with Apple DOS, CP/M and MS-DOS that required typing obscure commands to get anything done.

In a world of super-fast OS X and Windows machines, it's easy to forget that early desktop computers were a lot more basic. That was the case for the Apple II, Cupertino's first mass-market ...

Using an 8-bit 6502 microprocessor running at 1 MHz and an 8-bit bus, it ran the Apple DOS and ProDOS operating systems. AppleSoft BASIC was built in (in a ROM chip).

On Apple DOS 3.1 dating back to 1978, the "hello" program, if present, would be automatically launched on boot allowing for rudimentary program selectors if there was more than one title on the ...

It specified that “Delivery will be May 15″, which was incredibly aggressive. But, amazingly, “Apple II DOS version 3.1″ was released in June 1978.

The Computer History Museum has released something rather special for you to download: the original DOS source code for the 1978 Apple II. The first computer with a built-in floppy drive—ready ...

A tall order, it was nevertheless a task Laughton achieved allowing Apple to launch the add-on disk drive and Apple II DOS 3.1 upgrade in June 1978 - turning the Apple II from a toy into a real ...

The source code is officially still under copyright to Apple, circa 1978, but in the case of the Computer History Museum, it seems Cupertino was willing to let it slide.