DICTATION

The computer.

The parts of a computer you can touch, surch 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 operate in system (OS) is software that control the hardware. Most computer run the Microsoft window OS. Mark OS and linux are other operating system.

The CPU controls how fast the computer processes data, or information. We measure its 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 witch a five hundred MHz CPU. Watching movies in the internet needs a faster CPU and modem.