MacOS, formerly Mac OS X from 2001 to 2012 and OS X until 2016, is the name of an operating system for computers made by Apple Inc. These are called Macintosh computers, or Macs. It differs from other computers, as macOS is supposed to run only on Macs and not on other computers. However, people have made the OS run on computers that are not Macs. The first World War II submarine simulation ever made for the PC, GATO was a true pioneer in this niche genre, an ambitious sim that features a lot of realistic instruments and weapons. As the submarine history page at Subsim. Com describes it: 'This was the first sub simulator for a personal computer.

• Gato (1984) Mac Os Catalina
• Gato (1984) Mac Os Catalina

Gato (1984) Mac Os Catalina

There are a number of Macintosh history sites out there, but Iwanted to post some early MacOS screen shots that I thought were interesting.These screenshots were made using the vMacemulator running MacOS 1.1, I would have used 1.0, but it wouldn'trun right under vMac. Aside from a couple of menu items added under the'Special' menu, 1.1 reportedly looks the same as 1.0 which was releasedon January 1984.

As the Macintosh boots up it displays a happy macintosh picture tolet the user know everything is OK.

Typically, the Macintosh starts up the Finder application. The Finderis the MacOS's program for managing files and launching applications. TheFinder's user interface is far superior to that of the 'MS-DOS Executive'used in Microsoft's Windows 1.x and 2.x or even the Program Manager / FileManager of Windows 3.x. It wasn't until Windows 95 (11 years later) thatMicrosoft would even come close to the look and feel of the Finder - thenthey threw it all away and replaced it with a web browser in Windows 98.

Disks, when inserted, appear directly on the desktop allowing for veryeasy access to files. Double clicking the disk icon opens a file window.Finder windows open with a zooming effect.

Finder windows can be dragged around the screen by 'grabbing' the titlebar with the mouse. Clicking the small box in the upper left of the windowcloses the window.

Files and folders can be dragged to the desktop - although they do notactually exist there. The item is not copied or moved to another location,only the icon is displaced from the folder where it really is and displayedon the desktop instead The Trash icon works in a similar manner,holding icons until the Empty Trash option is selected and the files aredeleted.

Files can be renamed by clicking on the name underneath the file's iconand typing the new name.

Files and folder can be moved or copied by dragging and dropping themin to folders or drives.

File folders can be viewed as icons (default) or as a list sorted bysize, name, kind or date. The list view is not quite as friendly as theicon view in this early version of MacOS as list items can not be draggedlike regular icons.

The finder has a number of desktop accessories, including a rathervisually compact control panel. The control panel lets you adjust the volume(sound in a 1984 IBM PC was unheard of, other than the beeper that couldn'tbe shut off), mouse speed (most 1984 PCs didn't even have anything to clickat yet), the time (already Y2K compliant!), keyboard repeat rates, cursorblink speed, the background pattern, double click speed, and the numberof times a menu item blinks when you select it.

While the desktop accessories run windowed, other applications runusing the entire screen (newer MacOS allows multiple programs to sharethe screen). They also get their own set of menus - there is always onlyone menu visible. This works very well on small displays as it conservesvaluable screen space, but in my opinion, on very large displays this couldsometimes be an annoyance.

This is on a tour disk, and I found this particular option very interesting.

All of this was designed to run in 128k of RAM. Makes you really wonderwhy Windows 2000 requires 128 MEGS to run. And the best thing aboutall of this is there is no stupid web 'integration'!

Gato (1984) Mac Os Catalina

They killed Macintosh! You bastards! I guess this is the Macintoshequivalent of the BSOD. I got this while trying to exit one of theprograms. It could just be a problem with running under vMac.