What is the name given to the process of checking the status of an I/O device in a software loop? [2 marks] What is the name of the hardware timeout mechanism used to create a reliable system and ensure it will not get stuck in an infinite loop? [2 marks] What is the name given to a single bit that is used to store the information about the status of a processor and the instruction executed most recently? [2 marks] What type of logic gate should be used to effectively disconnect a peripheral from a data bus when they are inactive thereby allowing only the active device to drive the bus? [2 marks] What technique allows peripherals to write and read data to or from RAM, whilst the CPU is in low-power sleep mode. [2 marks]