Recent content by MACer

Someone asked me to read a book called 'Psychology and life' and I now searched over google books and they had tone books with this title. I wanted to know which author's book should I read?

Apple MAC OS X (Retail version) can only be installed on It's official laptops i.e iMac, MacBook etc. so why has apple had this restriction that the Operating Systems full features can only be used if you install MAC OS X on their official laptops?