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 Secondary memory, also known as secondary storage or auxiliary memory, refers to storage devices that are used to store data and programs permanently or for the long term. Unlike primary memory (RAM), which is temporary and volatile, secondary memory is non-volatile, meaning it retains data even when the power is turned off.  Examples of secondary memory include: - **Hard Disk Drives (HDDs)** - **Solid State Drives (SSDs)** - **Optical Discs** (like CDs and DVDs) - **Flash Drives** - **Magnetic Tapes** Secondary memory is typically used to store large amounts of data, applications, and the operati ng system.

Computers can be categorized in various ways based on their size, functionality, or purpose. Here are the main types of computers: Personal Computers (PCs): Desktops: Traditional stationary computers used in homes and offices.

  What is a computer? A  computer  is an electronic device that manipulates information, or data. It has the ability to  store ,  retrieve , and  process  data. You may already know that you can use a computer to  type documents ,  send email ,  play games , and  browse the Web . You can also use it to edit or create  spreadsheets ,  presentations , and even  videos . Watch the video below to learn about different types of computers. Looking for the old version of this video? You can still view it  here . Hardware vs. software Before we talk about different types of computers, let's talk about two things all computers have in common:  hardware  and  software . Hardware  is any part of your computer that has a  physical structure , such as the keyboard or mouse. It also includes all of the computer's internal parts, which you can see in the image below. Software  is any  set of i...

  Memory (Primary, Cache, and Secondary) Memory is most often used to refer to the primary storage, such as RAM. Memory is also the location of information processing. Memory is of three types. The data and instructions required to process raw input and generate output are stored in a computer’s memory. A computer’s memory is split into many tiny pieces known as cells. Each cell has a unique address ranging from 0 to memory size minus one. There are two forms of memory in a computer: volatile (RAM) and non-volatile (ROM). Secondary memory (hard disc) is stored rather than memory. However, if we classify memory in terms of space or location, we may divide it into four types: Register memory Cache memory Primary memory Secondary memory What is the significance of memory in a computer? Each component in the computer functions at a different pace and memory provides a location for your computer to retrieve data swiftly. A computer would be substantially slower if the CPU had to wait fo...

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