Flag of Guernsey of England to give way to William. The new flag's design was to symbolise that the islanders were of Norman descent but loyal to the English (and later British) Crown. In 1985 Queen Elizabeth II, Duke of Normandy, granted a Royal Warrant for the flag to become the official flag of Guernsey. Unveiled on 15 February 1985, the flag was flown for the first time on Liberation Day on 9 May, the 40th anniversary of the Channel Islands' liberation from German occupation during the Second World War. Thereafter, the Guernsey flag was used in the Grosse Rocque ceremony, replacing the
SIMMON virtual machine for testing of a single guest program running there. CP-40 supported many virtual machines for time-sharing production work. CP-40 evolved by many stages into the present VM/CMS operating system. SIMMON was a useful test vehicle for many years. SIMMON was designed to dynamically include independently developed programs (test tools) for testing the target guest program. The SIMMON kernel maintained control over the hardware (and the guest) and coordinated invocation of the test tools. Two modes of operation were provided: In this mode, each instruction in the guest program was simulated without ever passing control directly to the guest.