Postage stamps and postal history of Guernsey In 2010 "EUR" (Europe) and "ROW" (Rest of World) were issued. In 2012 this was expanded further with "UK Letter", "GY letter" (Guernsey) "INT letter" (International) "UK large" and "GY large" designating envelope size and destination. Starting in 2015, Guernsey also issues Post & Go stamps. Postage stamps and postal history of Guernsey The first postal service took place using mail sent with captains of packet ships, using agents in the England and in the islands for the end delivery. The cost was normally 3d. The first pillar boxes in Britain were introduced in the Channel Islands as an experiment
SIMMON SIMMON SIMMON (SIMulation MONitor) was a proprietary software testing system developed in the late 1960s in the IBM Product Test Laboratory, then at Poughkeepsie, N.Y. It was designed for the then-new line of System/360 computers as a vehicle for testing the software that IBM was developing for that architecture. SIMMON was first described at the IBM "SimSymp 1968" symposium, held at Rye, New York. SIMMON was a hypervisor, similar to the IBM CP-40 system that was being independently developed at the Cambridge Scientific Center at about that same time. The chief difference from CP-40 was that SIMMON supported a single