Page 28 - IT-En-V3

SSD - Solid state drive:

These types of hard disks store data on flash
memory, similar to the working principle of flash
memory. The flash memory in the hard disk consists of
a number of individual memory cells from which data is
written and read instantaneously

The most important features of the SSD hard disk:

The most important thing that
distinguishes an SSD hard disk from an
HHD hard disk is the absence of moving or
mechanical parts. Data is transferred to
and from the hard disk directly through
connections, which means speed, less
energy consumption, shock resistance,
and does not overheat .

Compact disk CD :

Compact disc (CD) is one of the most widely used
secondary storage media, and there are three main
types of CD: recordable CD, read-only CD, and
rewritable CD.

1. CD-ROM contains data printed by the

manufacturer. These discs are used to

distribute large software applications, video

games, user manuals, etc.

2. CD-R refers to a read-only CD, and in this

type of CD, once the data is written, it cannot CD
be erased.

3. CD-RW refers to a read-write CD, and in this

type of CD, it is easily possible to write or erase data many times.

21 Training unit in the field of technological information - at the Supreme Council of Universities © Intellectual property rights 2024