Spanish American wars of independence important change in strategy after three United Provinces campaigns had been defeated in Upper Peru. San Martín's army became the nucleus of the Army of the Andes, which received crucial political and material support in 1816 when Juan Martín de Pueyrredón became Supreme Director of the United Provinces. In January 1817, San Martín was finally ready to advance against the royalists in Chile. Ignoring an injunction from the congress of the Río de la Plata not to move against Chile, San Martín together with General Bernardo O'Higgins Riquelme, later Supreme Director of Chile, led the Army over the Andes in
AN/GYK-12 has a "privilege level", which controls the operations it is allowed to perform. Level '00'b is used for non-privileged programs. Level '01'b programs are "semi-privileged". Level '10'b programs are privileged and can execute all instructions and I/O operations. Level '11'b is unused. The system uses Sylvania Universal High Level II Integrated Circuits (SUHL II), manufactured by Collins Radio, Honeywell, Raytheon and Motorola Semi-Conductor Division. AN/GYK-12 The AN/GYK-12 is an obsolete 32-bit minicomputer developed by Litton Industries for the United States Army. The AN/GYK-12 is a militarized version of the L-3050 computer ruggedized for use in the TACFIRE tactical fire direction