You can also, for instance, keep say 100 Citrix servers in a data center and roll out 'thin clients' to 2500+ people around the globe. The servers are then kept secure and safe (since that's where the data is), and the client PCs have nothing to them.
Our fear is in Banquo. stick deep. Macbeth and Lady Macbeth is talking with each other as Macbeth ordered killers to assassin Banquo and his son. However, by looking at this quote, Macbeth mentions that he is sacred and in fact he's fear in Banquo stick deep into his heart.
In the beginning of the play, Macbeth and Banquo are allies. Macbeth has a strong desire to be king, and in his quest for power he sees Banquo as a threat; it is for this reason he has Banquo murdered. During a public feast, Banquo's ghost appears to Macbeth, which causes him to be scared.