Jubail Industrial College Management & Information Technology Department Report 2022

Jubail Industrial Collage
Management & Information Technology Department
PC Building & Maintenance (MIT173)
________________________________________________________________
1) By referring to CH6; make comparisons between Solid state and magnetic hard disks
technologies using this table characteristics elements: (note you can add other elements as
credit for you)
Sr.
No.
Characteristics Solid state hard disk magnetic hard disk
1. Hard disk Controller. Embedded processor is the controller
for the solid state hard disk.
Electronic commands which is
makes the disk, present in the
magnetic dis to spin and the
magnetic head is pointed to the
proper direction.
2. Technical base. This is a storage drive which helps in
the retention of the data from the
flash memory.
The main magnetic medium is
created with the help of the
cobalt based alloy medium and
is comp0osed of hundreds of
magnetic grains which is the
main technical base of the
magnetic hard disk.
3. Read operation. The read operation of the Solid state
hard disk depends completely upon
the embedded processors which is
more popularly known as the
controller for the reading of the data.
The read operations take place
with the help of the a mechanical
arm which is present in the
magnetic hard disk that keeps
on rotating on the magnetic
surface of the hard disk.
4. Write operation. The read operation of the Solid state
hard disk depends completely upon
the embedded processors which is
more popularly known as the
controller for the writing of the data.
The same technology that is the
mechanical arm present in the
magnetic hard disk helps in the
writing operations of the disk as
well.
5. Erase operation.  Creating a parted Magic
bootable media
 after the booting is
completed, access the
System Tools and Erase disk
 Once this command is
chosen the internal security of
the erase command writes 0s
for all the data there. Click on
Continue to proceed.
 Selecting of the SSD which
has to be removed, and click
on OK button
 Keep the password as NULL
 Click on the caution button
and press YES when ready.
 The erasing of the SSD is
completed with a message on
display.
The SSMD-2MM Solid State Media
Disintegrator helps in the removal of
In order to erase the data that is
present in the magnetic drive,
the drive is overwritten Several
times in an alternating pattern,
such that it is exposed to a fast
oscillating magnetic field. This
helps in flipping the magnetic
domain which leads to the
erasing of the data. the
degausser may help in the
removal of the unnecessary data
from the magnetic Hard Disk
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Jubail Industrial Collage
Management & Information Technology Department
PC Building & Maintenance (MIT173)
________________________________________________________________
the data.
6. How Data is organized. The data is organized in the form of
Grids, Blocks, Pages and Rows.
SSD consists of Floating gate
transistors and so the data is written
in a NAND Flash Pool
The data in the magnetic hard
disk is organized with the form of
the sectors and tracking, the
sectors are the blocks of the
data within the tacks which are
the circular division of the data.
7. How OS deal with
technology.
The solid state is used for the
purpose of storing data in the PC
with the help of the integrated circuits
such that the data is stored
persistently. It generally used the
flash memory to store the data.
The Uses the magnetization
process of the technology to
read and write the data along
with the usage of the storage for
the data.
8. OS command used for
permanently deleting/
Organize the data.
ATA Secure Erase Command is
used for permanently deleting the
data from the SSDs
DBAN or Darik’s Boot and Nuke
Command is used for deleting
the data from the Magnetic Hard
Disk
9. Main weakness using
this technology
The cost of SSD is high in
comparison to the magnetic hard
disk. The lost data cannot be
recovered.
The Read and Write speed is
slow. Due to the magnetic disk
drive having several RPMS the
data gets fragmented.
10. Supported Interfaces. SSD supports the SATA driver, and
NVMe Drives because they support
faster interface.
Enhanced Small Disked
Interface and ATA Serial
interfaces are supported by the
Magnetic Hard disks,
11. Speed. 550 Megabyte per second range can
be obtained with the usage of the
interfaces that are mentioned in the
point ahead.
125 megabytes per seconds
which is much lesser in
comparison to the SSD.
12. Size. The storage size of SSD varies from
32 GB to 1 Terabyte
The storage capacity of the
magnetic drive is 200GB to 1
TB.
13. Power conception. 833Watts per hour 1 nano joule on an average
14. Technology trends. The usage of the NAND flash drive
by the SSD helps in manufacturing of
the lower endurance NAND flash
options such as the MLC (Multi level
Cell), TLC (Triple Level Cell), 2D
NAND and 3D NAND
The trends has been gradually
developed from 3.5 inch to 2.5
inch form factors. Due to this the
cost of the HDDs haven Fallen
for every Giga Byte.
15. Waiting time The waiting time of the SSD is lesser
even in the cheaper devices.
More waiting time especially in
the cheaper devices.
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