POS terminals (1 Viewer)

[king_of_boredom]

in POS (point of sale) terminals, how is data backed up and processed within the system?

thanks in adv

 

[Lwaxana]

Ummm
dont POS terminals send data direct to central computer
so how would u backup a computer ??

save it to another form of storage ..like CD
using a backup procedure like Grandfather-father-son
usually Real time transaction processing

 

[king_of_boredom]

Ummm
dont POS terminals send data direct to central computer
so how would u backup a computer ??

save it to another form of storage ..like CD
using a backup procedure like Grandfather-father-son
usually Real time transaction processing

hm thanks for the input..is this real time transaction processing basically EFTPOS?

 

[Lwaxana]

Were you listening in class ???

Real-time processng is immediate processing of data and requires access to an online database
eg airline reservation system
banking transaction system
library loan system
POS terminal

 

[psychiclobster]

about processing systems....

It seems that if a major backup were to be stored, a system such as CD woul be inappropriate. I would be necessary that there would be a major server that would store all of this information. What medium this would be is another question, perhaps magnetic tape? It seems obvious that CD's would be insufficcient for the needs of the system.

Also, it would be probable that the system would be largely modulated, over a WAN. As such, the surnames beginning with (A) would be in a different graphical location than surnames beginning with (S) for example.

hope that helped...

 

[king_of_boredom]

what types of data is processed within a POS terminal? and why is real time processing appropriatie for this system?


i have the heinemann IPT textbook, and it has nothing about the backup systems used in POS terminals. plus, i can't find any specific info on the net.

help!!

 

[Lwaxana]

Storage:
Removable cartridges ( zip disks)
Magnetic tapes
Optical discs ( if its not long term)
or
Electronic document management systems
Data warehousing

Data is either text, numbers, audio, video, images so which do YOU think would be found in a POS ??

Mission critical data (ie deposits, flight reservations) needs to be real time
Other data can be batch

 

[king_of_boredom]

uh, another question. how is a relational DBMS used in a TPS?

 

[Lwaxana]

you really don't wish to think about this yourself do you .........

Library Loan system

Borrowers database
Book Suppliers database
Book database

would be linked in a relational database - then consider advantages of R D/B