MEMORY
WHAT IS COMPUTER MEMORY?
Computer memory is any physical devices capable of storing information temporarily or permanently.
WHAT IS PRIMARY MEMORY?
Primary memory also known as “main memory” or “internal memory” which is located in the mother board of system or as we say which is directly connected to the CPU.
DEFINE SECONDARY MEMORY?
•The place where we store our personal data in computer system. In this we store data so that when the data is needed we can easily retrieve it.
what are units which are used to measure
computer memory
•Bit - Smallest unit of computer memory
• Byte - 8 bit = 1 byte
• Kilobyte - 1024 byte = 1 kb
• Megabyte - 1024 kb = 1 mb
• Gigabyte - 1024 mb = 1 gb
Terabyte - 1024 gb = 1 tb
Give two Examples of Primary Memory.
RAM & ROM
what are some examples of Secondary Memory?
-HDD
-FDD
-Optical Drive
-USB Drive
etc.
Which of the following statements are not correct about the main memory of a computer?
(a) In main memory, data gets lost when power is switched off.
(b) Main memory is faster than secondary memory but slower than registers.
(c) They are made up of semiconductors.
(d) All are correct
Answer (D)
All are correct
Which type of memory can read data but can’t write data?
A. Random only memory
B. Random-access memory
C. Read-only memory
D. None of the above
Answer (C)
Read-only memory
What are the 5 types of secondary memory?
What is the most important memory of the computer?
Random Access Memory (RAM)
Which part of primary memory stores the data permanently?
ROM (Read-Only Memory)
It is permanently stored at the time of manufacture so that the user cannot overwrite it.
What are the types of Secondary Memory
Fixed Storage
A fixed storage device in secondary memory is an internal media device used to store data in a computer system. Fixed storage is sometimes known as hard drives or the fixed disc drives.
Removable Storage
Removable storage refers to an external media device that is mainly used to store data on a computer system in secondary memory.
Which memory is Volatile
What does non-volatile mean?
Non-volatile means the opposite it ‘does not lose memory when the power is switched off’.
What does volatile mean?
Volatile is a term that means ‘data is lost when the power is switched off’.