3. MEMORY
Memoryis the electronic holding place for the
instructions and data a computer needs to reach
quickly. It's where information is stored for
immediate use. Memory is one of the basic
functions of a computer, because without it, a
computer would not be able to function properly.
Memory is also used by a computer's operating
system, hardware and software.
5. PRIMARY MEMORY
Primary storage or memory is also known as
the main memory, which is the part of the
computer that stores current data, programs, and
instructions.It stores data temporarily and Primary
memory is volatile. It loses data in case of a power
outage. Data is stored inside costly semiconductor
chips. It is also regarded as temporary or cache
memory constantly being written to and read.
6. TYPES OF PRIMARY
MEMORY
Random Access Memory
It is a volatile type of memory wherein it loses its contents when
the power is switched off. The processor reads instructions/data
from it and also writes into it. Data and instructions are loaded
into RAM from the external hard disk, and processed data are
stored back into the hard disk.
Read-only Memory (ROM)
A non-volatile type of memory that continues to hold the
contents even when the power is switched off. As per the name,
contents can only be read from these memory locations and
cannot be erased or rewritten.
7.
8. SECONDARY MEMORY
Secondary memory is a type of
computer memory that is used to store
data and programs that can be accessed or
retrieved even after the computer is
turned off. Unlike primary memory, which
is volatile and temporary, secondary
memory is non-volatile and can store data
and programs for extended periods of
time. Secondary memory is a physical
device for the permanent storage of
programs and data(Hard disk, Compact
disc, Flash drive, etc.).
