Oberon (moon) geological feature on Oberon: craters and chasmata ('canyons'—deep, elongated, steep-sided depressions which would probably be described as rift valleys or escarpments if on Earth). Oberon's surface is the most heavily cratered of all the Uranian moons, with a crater density approaching saturation—when the formation of new craters is balanced by destruction of old ones. This high number of craters indicates that Oberon has the most ancient surface among Uranus's moons. The crater diameters range up to 206 kilometers for the largest known crater, Hamlet. Many large craters are surrounded by bright impact ejecta (rays) consisting of relatively fresh ice. The
Oberon (operating system) 2002.<br> BB, BlackBox Component Builder. Component Pascal IDE from Oberon Microsystems.<br> Bluebottle OS, And again another name for the Active Object System, 2003.<br> BRAM, Block Addressable Random Access Memory, as used in the FPGA machine.<br> CP, Component Pascal. A dialect in the Oberon family most similar to Oberon-2.<br> ETHO, Oberon as developed at Eidgenössische Technische Hochschule (ETH) Zürich.<br> Fox, The compiler for Active Oberon, appearing in AOS (= A2 = Bluebottle).<br> LEO, Linux ETH Oberon. ETHO 2.4.3 for Linux x86.<br> LNO, Linux Native Oberon.<br> NO, Native Oberon. Oberon running on bare hardware rather than atop another operating system.<br> OLR, Oberon