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IOC was an extensive set of C++ classes used to build CLI and GUI applications which could then be easily cross-compiled to OS/2, Microsoft Windows, and AIX.
Since oneSIS was designed with the Linux-systems administrator in mind, users will not find proprietary-GUI frontends here; all the tools to image a box, copying root-images, converting diskless machines diskfull, etc. are accessible exclusively through the command line interface (CLI).
A typical model consists of a microprocessor, a modem, and software (in EPROM) that implements the AX.25 protocol and provides a command line interface to the user.
Up to that point, JavaScript and frames had been avoided in order to facilitate the use of Lynx as a command line interface.
The features of the operating system included a total lack of a command line interface (which was included in Microsoft's Windows 1.0 introduced in 1985), Finder, and the menu bar.