A hazard is created whenever there is a dependence between instructions, and they are close enough that the overlap caused by pipelining would change the order of access to an operand. Our example hazards have all been with register operands, but it is also possible to create a dependence by writing and reading the same memory location. In DLX pipeline, however, memory references are always kept in order, preventing this type of hazard from arising.
It was actually a few years later, in the year 1898 to be exact, when this idea had taken its existence. Vlademar Poulsen was the person who had invented the earlier concept of Oberlin. In 1928, Fritz Pfleumer developed the magnetic tape. But it was not that compact as how the modern cassette player was.
No doubt it was the most photographed product of that event. When the cassette was developed there were only three tapes in the world which enabled Philips to get it right, 3M's low-noise cartridge tape, KODAK's triple-play tape P 300 and BASF's PES-18.Of these only BASF tape was perfectly balanced in all its properties, in particular also the mechanical characteristics.hen the cassette was developed there were only three tapes in the world which enabled Philips to get it right, 3M's low-noise cartridge tape, KODAK's triple-play tape P 300 and BASF's PES-18. Of these only BASF tape was perfectly balanced in all its properties, in particular also the mechanical characteristics.