DICTATION

The parts of a computer you can touch, such as the monitor or the central processing unit (CPU) are hardware. Old hardware except the CPU and the working memory are cold peripherals.

Computer programs are software. The operating system (OS) is software that controls the hardware. Most computers run the Microsoft windows OS.

Mac OS and Linux are other operating systems.

The CPU controls how fast the computers processes data, or information. We measure speed in MHz (MHz) or Gigahertz (Gih) the higher this speak of the CPU, this faster the computer will run. You can type letters and play computer games with a five hundred MHz CPU.

Watching movies in the internet needs a faster CPU and modem.