System 1.0

System 1.0 (aka System 0.97) was the first commercial version of the Macintosh system software from Apple Computer, released during the official launch of the Macintosh 128K on January 24, 1984.

Features
It included the Desktop, windows, the menu bar, icons, folders, documents, applications, the Trash (Wastebasket), and system software.

Other points of note:
 * List view featured no icons; there was no "View by small icon" option either.
 * The icon for a floppy disk was slightly different than in later versions; the protective shutter was drawn in black on an otherwise white floppy disk.
 * The Control Panel was very compact, featured almost no text labels, and had only one pane.
 * There was no Shut Down command.
 * MFS (Macintosh File System) was the only file system format supported.  It did not support a nested directory structure.  Folders were instead stored in the Finder's Desktop file and were unavailable outside the Finder.
 * There was no New Folder command.  There was one folder provided by default that could be duplicated if needed.
 * The Open and Save dialogue boxes gave folders no recognition at all.
 * It could only run one application at one time.
 * You could only eject a disk through the Eject Disk special menu item.
 * No support for color.
 * Due to incompatability with the final shipping version of Finder 1.0 (dated January 18, 1984), the Guided Tour of Macintosh came on a separate disk with an older version of Finder and System 0.85, which booted directly to the guided tour.
 * The system came with a single printer extension: Imagewriter.
 * Desk Accessories, including Alarm Clock and Calculator, were stored as resources in the System file, as were bitmapped fonts.  ResEdit was used to move new fonts and accessories into the System.