Law of Guernsey and yet another in 1338 resulted in both the improved training of the militia and a Royal Charter of 1341 confirming the Islands' constitution, this Charter being ratified by successive sovereigns. The ratification by Elizabeth I of 1560 set out in detail the rights of the Bailiwick of Guernsey. A seal granted to the Channel Islands in 1279 and to each of Guernsey and Jersey in 1304 have become symbols of Guernsey's separate identity from both Jersey and the United Kingdom. The customary law of the Duchy of Normandy is particularly influential as a source of law. Norman law developed
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.