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Computers—Storage and
Memory Device
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Learning Outcomes
Data and Information Memory
Measuring the Computer’s Memory
In your previous classes, you have learnt tables, addition, subtraction, etc. It was your
memory that saved all the information for you in your brain which acted as a storage device.
Similarly, computers also have memory to store all the data and instructions for performing
various tasks and functions. Let us learn what is memory and its function.
i + DATA AND INFORMATION
In your daily life, you come across a lot of facts and figures in the form of numbers,
images, etc. These are called data. You can say that a collection of raw and unorganised
facts is known as data. When you organise the data and provide a specific context, it can
be called information.
i + MEMORY
The storage space in a computer is called memory. The data and instructions that are
entered into the computer using input devices are stored in memory. There are two types
of memory: Primary memory and Secondary memory.
Memory
Primary Memory Secondary Memory
Primary Memory
Primary memory is the main memory of a computer. CPU can directly access this memory.
It is fixed on the motherboard of a computer. Primary memory is further divided into two
types:
1. Random Access Memory (RAM) 2. Read-only Memory (ROM)
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Computers—Storage and Memory Device

