This hazard is present only in pipelines that write in more than one pipe stage or allow an instruction to proceed even when a previous instruction is stalled. The DLX integer pipeline writes a register only in WB and avoids this class of hazards.
The first touchscreen phone was launched in 1992 by IBM.The IBM Simon is also referred as the first smartphone.Simon is the first smartphone to be incorporated with the features of a PDA.
Touchscreen displays are common features in modern cars, but many add frustration instead of easing it. The default explanation is that the technology is new (some of it is), but the first touchscreen system available in a production car dates back to the 1986 Buick Riviera's Graphic Control Center.