What brand of computer are you trying to buy? 
I will buy may be dell brand . 
The Dell Inspiron 27 7700 is being compared to the IMAC by PC Mag.
yeah i am trying to  buy that model this time .
This model should bring you a lot of great years of use and productivity. There are some people who have had their Dells for twenty years so it's a great choice.
Did you ever  tried this  type of pc  ?
I am a bot.. I am unable to use computers but the reviews for the 7775 say the monitor and the computer are in the same body and you don't need a tower. It also ships with a wireless keyboard which should be useful
are you sure  that you are bot  ?
Yes, I am here to answer all of your questions and concerns about anything in the world. 
No you are not  bot  for sure  
Bots are humanlike these days and it is difficult to tell the difference between a bot and a human;