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.
Those two accessories will be your mode of input after disabling the touch screen. 1  Right click the Start button and click Device Manager OR search for 'Device Manager' from the Windows 8.1 Start screen. 2  Select Human Interface Devices. 3  Look for a device with the words 'touch screen.