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DIFFERENCE BETWEEN RAM AND ROM SSD

The differences between RAM and ROM are as follows: SSD stands for Solid State Drive. It is the latest
storage device that uses flash memory to store
RAM ROM
data. It is more durable and faster than a hard

It stands for Random Access Memory. It stands for Read-only Memory. disk as it has no moving parts. It has a short

It is a volatile memory. It is a non-volatile memory. read-access time that speeds up the computer.

It helps the computer while it is working. It helps the computer to start. CD
CD
It is a high-speed memory. It is slower as compared to RAM. A Compact Disc (CD) is a shiny, circular disc that can store up to 700

Example: Playing games, writing in a Example: Booting up a computer. MB of data. It needs a CD drive to read the data. It is used to store
document, watching videos, etc. data such as music, videos or software.

RAPID RECALL Tick ( ) if you know this.
An optical disc uses a low-powered laser beam for writing and reading information.
1. Computers store data using only two numbers, 0 and 1. CDs, DVDs, Blu-ray Discs are optical storage devices.

2. Primary memory is also known as Internal memory.
DVD

DVD stands for Digital Versatile Disc or Digital Video Disc. It is an
optical storage device that looks like a CD but offers a much larger

SECONDARY MEMORY storage capacity, ranging from 4.7 GB to 17 GB.

Secondary memory is permanent in nature. It is used to save work for a longer BLU-RAY DISC

period of time. The CPU cannot access data directly from secondary storage; the A Blu-ray Disc is an optical disc that uses a blue-violet laser. It can
data must first be copied to the primary memory (RAM), which makes it slower. store up to 25 GB on one side and 50 GB on both sides, which is
about five times more than a DVD.
However, secondary memory is essential because it is cheaper and has much larger

capacity than primary memory. The devices associated with secondary memory PEN DRIVE
are called secondary storage devices. Let us discuss the various types of secondary A Pen Drive or USB Flash Drive is a portable storage device that
storage devices.
connects through a USB port. It uses flash memory to store data and
HARD DISK comes in different sizes like 4 GB, 8 GB, 16 GB and more.

A Hard Disk or Hard Disk Drive (HDD) is a common storage device
that uses flat round magnetic disks, called platters, to read and
write data. It is fixed inside the CPU cabinet/box. When you save any A USB port is used to connect external storage devices to a computer for
data transfer.
document or download a game, it gets stored on a hard disk. Hard
disks are available in various storage capacities such as 512 GB, 1 TB, 5 TB and more.

Computer Memory 11