THIS PRESENTATION TALKS ABOUT SSD, PEN DRIVES AND FLASH MEMORY CARDS

1. MANJIL DIGANTA
STAGE 10
2016/17

2. SSD have no moving parts and all data are recovered
at the same rate. They store data by controlling the
movement of electrons within NAND chips (1).
(1) – Does not require power to retain data, they are
made of a single building blocks of many eletronic
circuits

3. SSDs using EEPROM use NOR chips (2).
ADVANTAGES:
• Faster in operation
• Allows data to be read or
erased in single bytes at a
time.
DISADVANTAGES:
• It’s expensive
(2) – it’s logic gate is made up of many eletronic
circuits

4. ADVANTAGES of SSD:
• More reliable
• Considerably lighter
• They start to work prperly with no problems
• Low power consumption
• They are very thin
• Fast data acess
DISADVANTES of SSD:
• It cannot do a huge number of write operations/day.

5. Memory sticks/pens drive can store several GB.
Some expensive software now uses the portable flash
drives as a form of security, they are plugged into a
computer using USB port and are known as dongles. If
a hacker tries to hack the system will have break the
dongle code first.

6. USES:
• TRANSPORT FILES FROM ONE DEVICE TO ANOTHER
• USED AS BACK UP STORE
• USED AS SECURETY DEVICE (DONGLE)

7. ADVANTAGES:
• Very compact and portable
• Very robust
• Works at any computer
• They are not affected by
magnetic field
DISADVANTAGES:
• Can’t write – protect the
data
•Easy to lose
• If it’s removed incorrectly
(it will corrupt the data
inside it)

8. Flash memory cards are a form of EEPROM
(electrically erasable programmable read – only
memory)

9. USES:
• Storing photos on cameras
• Memory card for mobiles
• Uses on MP3 players
• Used as backup store in hand – held computer
devices
ADVANTAGES:
• Very compact
• Very robust
DISADVANTAGES:
• Expensive/GB
• As a limited number of times
it can be read/write
• Low storage capacity
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