Answer:
Is the the technology of the device known by you?
 
        
             
        
        
        
Well, using my limited knowledge, "cleaving" means to chop, break in half, split, etc. Twain means twice. So, perhaps it's like "you've broke my heart in half", something along those lines? hopefully this helps you.
        
             
        
        
        
here's your answer dear friend❤❤❤❤❤❤❤❤❤❤❤
 
        
             
        
        
        
Answer:
1. I have keys but no locks.
I have a space but no room.
You can enter, but can't go outside.
What am I? 
im a comp student so the riddle might be lame lol :'D