Module 1, Concepts of Information and Communication Technology (ICT)

Identify the main parts of a computer

Types of memory

• The two main types of memory are Read-Only Memory (ROM) and Random Access Memory (RAM).

• ROM holds permanent information such as the software that enables the components in your computer to communicate. It cannot usually be deleted or overwritten.
  
  
• RAM is a temporary memory store. It holds the data that is being manipulated by the CPU until it is moved to a permanent memory store such as a disk, or until the computer is switched off, when it is lost. For example, when you create a document it is stored in your computer’s RAM until you save it to disk.