INITIALIZATION
Knowledgebase: ki-dev-large
Base Query: what is station addressing?
Model: gemini-1.5-pro-preview-0409
Use Curl?: None
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ROUTING
Query type: research
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RAG PARAMETERS
Max Context To Include: 20
Lowest Score to Consider: 0.5
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VECTOR SEARCH ALGORITHM TO USE 
Use MMR search?: False
Use Similarity search?: True
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VECTOR SEARCH DONE 
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FILENAMES AND KEYWORDS 
Keywords Found: []
All file names: ['Project%20Oberon%20The%20Design%20of%20an%20Operating%20System%2C%20a%20Compiler%2C%20and%20a%20Computer%20-%20Niklaus%20Wirth%2C%20J%C3%BCrg%20Gutknecht%20%28PDF%29%20PO.Applications.pdf']
File names to FILTER: []
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PRIMER 
Primer: 
            You are Simon, a highly intelligent personal assistant in a system called KIOS. You are a chatbot that
            can read knowledgebases through the "CONTEXT" that is included in the user's chat message.

        
            Your role is to act as an expert at reading the information provided by the user and giving the most
            relevant information.

            In your responses to enterprise users, prioritize clarity, trustworthiness, and appropriate formality.

            Be honest by admitting when a topic falls outside your scope of knowledge, and suggest
            alternative avenues for obtaining information when necessary.

            Make effective use of chat history to avoid redundancy and enhance response relevance, continuously
            adapting to integrate all necessary details in your interactions.

            Focus on precision and accuracy of your answers information.
        
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FINAL QUERY 
Final Query: CONTEXT: ##########
File: Project%20Oberon%20The%20Design%20of%20an%20Operating%20System%2C%20a%20Compiler%2C%20and%20a%20Computer%20-%20Niklaus%20Wirth%2C%20J%C3%BCrg%20Gutknecht%20%28PDF%29%20PO.Applications.pdf

Page: 2

Context: ```markdown
# 10.3 Station Addressing

Every packet must carry a destination address as well as the sender's address. Addresses are station numbers. It could certainly be inconvenient for a user to remember the station number of a desired partner. Instead, the use of symbolic names is preferred. We have become accustomed to use the partner's initials for this purpose.

## Protocols

A simple form of the `ReceiveFile` request is defined as follows and will be refined subsequently:

```
ReceiveFile = SND filename (ACK data | NAK).
```

Here, the symbol `SND` represents the encoded request that the server send the file specified by the filename. `ACK` signals that the request is honored and the requested data follow. The `NAK` symbol indicates that the requested file cannot be delivered. The transaction clearly consists of two parts, the request and the reply, one from each partner.

This simple-minded scheme fails because of the limitation of the size of each transmitted portion imposed by the network driver. We recall that module `SCC` restricts the data of each packet to 512 bytes. Evidently, files must be broken up and transmitted as a sequence of packets. The reason for this restriction is transmission reliability. The break-up allows the partner to confirm correct receipt of a packet by returning a short acknowledgement. Each acknowledgement also serves as a request for the next packet. An exception is the last acknowledgement following the last data portion, which is characterized by its length being less than the admitted maximum. The revised protocol is defined as follows:

```
ReceiveFile = SND filename (DAT data ACK | DAT data ACK | NAK).
```

We now recall that each packet as defined in Section 9.3 is characterized by a type in its header. The symbols `SND`, `DAT`, `ACK`, and `NAK` indicate this packet type. The data portions of `ACK` and `NAK` packets are empty.

The revised protocol fails to cope with transmission errors. Correct transmission is checked by the driver through a cyclic redundancy check (CRC), and an erroneous packet is simply discarded. This implies that a receiver must impose a timing constraint. If an expected packet fails to arrive within a given time period (timeout), the request must be repeated. In our case, a request is implied by an acknowledgement. Hence, the acknowledgement must specify whether the next (normal case) or the previously requested (error case) packet must be sent. The solution is to attach a sequence number to each acknowledgement and to each data packet. These numbers are taken modulo 8, although in principle modulo 2 would suffice.

With the addition of a user identification and a password to every request, and of an alternate reply code `NPR` for "no permission", the protocol reaches its final form:

```
ReceiveFile = SND username password filename (datastream | NAK | NPR).
datastream = DAT data ACK | {DAT, data ACK}*.
```

The protocol for file transmission from the master to the server is defined similarly:

```
SendFile = REC username password filename (ACKO datastream | NAK | NPR).
datastream = DAT data ACK | {DAT, data ACK}*.
```

The third request listed above, `SendMsg`, does not refer to any file, but merely transmits and displays a short message. It is included here for testing the link between two partners and perhaps for visibly acknowledging a rendered service by the message "done", or "thank you".

```
SendMsg = MSG message ACK.
```
```
##########

"""QUERY: what is station addressing?"""

Consider the chat history for relevant information. Important: If you find information separated by a | in the context, it is a table formatted in Markdown.Important: Take a look at the QUERY and only the QUERY. If this is vague or unclear, please ignore everything and ask a follow-up question instead!
Final Files Sources: Project%20Oberon%20The%20Design%20of%20an%20Operating%20System%2C%20a%20Compiler%2C%20and%20a%20Computer%20-%20Niklaus%20Wirth%2C%20J%C3%BCrg%20Gutknecht%20%28PDF%29%20PO.Applications.pdf - Page 2
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FINAL ANSWER 
Answer: Station addressing refers to the use of station numbers to identify and communicate with specific stations on a network. 

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