What is Internal/External/Vostro/Nastro Account?

Hi All,

I am very new to functional side of T24. Doing self studying on Accounts. As a scratch on accounts, I want to know the answers for the following questions.

What is Internal Account?
What is External Account?
What is Vostro Account?
What is Nastro Account?

And how these can be implemented in globus?

Even one cent of answer will be more valuable to me.
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King Arthur

CHECK THE CATEGORY CODE FOR NOSTRO ACCOUNT, i think it is 5000, you create the nostro account with account category code as 5000 and attach the nostro account to the NOSTRO.ACCOUNTS application, WHERE you can define a nostro account as default for a currency. Nostro is the bank's account with other bank, other banks account with us is the vostro account.
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Arun Mohan