This is a book. Here you are. There is a pen.
һ顣㡣֧ʡ

<p> A computer is a general purpose device that can be programmed to carry out a set of arithmetic or logical operations automatically.</p> <p> Since a sequence of operations can be readily changed, the computer can solve more than one kind of problem.</p>

Conventionally, a computer consists of at least one processing element, typically a central processing unit (CPU), and some form of memory. The processing element carries out arithmetic and logic operations, and a sequencing and control unit can change the order of operations in response to stored information.
