Some people think their computer will distract the people around them. I've found that after you get past the first week it's not a problem, and even then it's only a problem if you're being distractive. But you won't be if you follow my suggestions below. So the first thing to figure out about your computer or palmtop is how to shut off sounds. Turn System Sound , Alarm Sound and Game Sound all off.
Many laptops have a hardware volume control.
Otherwise go to Volume icon on the task bar and mute the master volume control. I've never understood these people who have all kinds of swooshes and bangs as they pull down menus, click icons and tap the screen. Whether you're in church or in a meeting, your sounds are distracting. I have all the sounds on all my portable devices permanently turned off. One of the most disappointing moments I've had at church was turning on my laptop only to have it tell me my batteries were almost dead.