Sube
03/08/2012
Sofia Pasarin
Sofia Pasarin
03/08/2012
4ºA
2
Sube Card
1.
What are the hardware and software involved? (mention and describe
the components of this system)
Hardware
Software
16
-
bit embedded
microprocessor, under a gold
contact pad on one side of the
card, for security
up to 8
kilobytes
of RAM
346 kilobytes of
ROM
256 kilobytes of
programmable ROM
serial interface which
receives its power from
external sources like a card
reader.
limit
ed instruction set for
applications such as
cryptography.
2.
Explain how does the technology works
The processor uses a limited instruction set for applications such as cryptography
Smart Card
uses a serial interface
receives its power from external sources like a card
reader
Microprocessor
enforces access to the
The host computer and card reader
"talk" to the
Sofia Pasarin
03/08/2012
4ºA
3
3.
What are the benefits of using this card?
Are there any
drawbacks?
4.
Suggest other uses of this technology.
a.
Credit cards
b.
Electronic cash
c.
Computer security systems
d.
Wireless communication
e.
Loyalty systems (like frequent flyer points)
f.
Banking
g.
Satellite TV
h.
Government identification
5.
Explain the social impact of the use of the SUBE in our society
Advantages
Disadvantages
Security
Easy to be olost
Difficult to be
implemented
Identity theft
Security
Safe to stransport
The double serves as
an ID card
No fraud
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