●●● ●●●● 2.1 Operating System Services :9 s ● ●●●● ● Error detection os needs to be constantly aware of possible errors Errors may occur in the CPU and memory hardware, in 1/o devices, in user program o For each type of error, os should take the appropriate action to ensure correct and consistent computing o Debugging facilities can greatly enhance the user's and programmer's abilities to efficiently use the system7 2.1 Operating System Services ⚫ Error detection ⚫ OS needs to be constantly aware of possible errors ▪ Errors may occur in the CPU and memory hardware, in I/O devices, in user program ⚫ For each type of error, OS should take the appropriate action to ensure correct and consistent computing ⚫ Debugging facilities can greatly enhance the user’s and programmer’s abilities to efficiently use the system