[lemma=computer] [tag=NN] [lemma=have] [□]
[lemma=computer] [tag=NN] [lemma=have] [□=□]
[lemma=computer] [tag=NN] [lemma=have] [!□]
So , metaphors are representations of real-world objects in computer environments , and the computer representation has a behavior analogous to its real-world conterpart . For those not comfortable with computers , the computer kiosk has a touch screen for easy use . And computer software has a short life cycle with all manufacturers constantly on the lookout for the next model or an angle which will cause users to upgrade . Computer science has a classical soul ; many definitions implicitly contain ideas from the time we believed the world evolved according to newtonian physics . Just as the computer industry had a variety of competing operating systems and hardware standards , we have a variety of board vendors and board standards .