Do you mean, what is an example of a sentence with the word computer in it?
If that is the case, then an example could be:
My parents decided to invest in a computer, since we live in an age of technology.
I will discharge the computer.
"My computer screen froze," is a great sentence to use for the word "screen."
I use technology from my computer that is a way to use the word technology
The disks were in the computer, ready for class.
A portable computer is very useful.
I was unable to use the computer for a while, as it was busy updating the system.
Every computer has a finite amount of memory.
The boss has a question about the performance of the new computer.
I suspect my computer has developed a hardware fault.
My computer got a virus so we had to get it fixed.
With the invention of the computer, typewriters were made obsolete.
Example sentence - Many computer networks still function on mainframe systems.