diff --git a/ChatGPT/ChatGPT_dialog_1.md b/ChatGPT/ChatGPT_dialog_1.md
new file mode 100644
index 0000000..151cba2
--- /dev/null
+++ b/ChatGPT/ChatGPT_dialog_1.md
@@ -0,0 +1,146 @@
+# ChatGPT dialog
+## 1st question
+_c++ multi thread tcp server header and source_
+
+## 1st reply
+Below is a simple example of a multi-threaded TCP server implemented in C++. This example demonstrates a basic TCP server that can handle multiple client connections simultaneously using threading.
+
+**Server Header (server.h):**
+````cpp
+#ifndef SERVER_H
+#define SERVER_H
+
+#include <iostream>
+#include <thread>
+#include <vector>
+#include <mutex>
+#include <condition_variable>
+#include <atomic>
+#include <cstring>
+#include <arpa/inet.h>
+#include <unistd.h>
+#include <sys/socket.h>
+
+class TCPServer {
+public:
+    TCPServer(int port);
+    ~TCPServer();
+
+    void Start();
+    void Stop();
+
+private:
+    void Listen();
+    void HandleClient(int clientSocket);
+
+    int port;
+    int serverSocket;
+    std::vector<std::thread> clientThreads;
+    std::atomic<bool> running;
+};
+
+#endif // SERVER_H
+````
+**Server Source (server.cpp):**
+````cpp
+#include "server.h"
+
+TCPServer::TCPServer(int port) : port(port), running(false) {}
+
+TCPServer::~TCPServer() {
+    Stop();
+}
+
+void TCPServer::Start() {
+    running = true;
+
+    serverSocket = socket(AF_INET, SOCK_STREAM, 0);
+    if (serverSocket == -1) {
+        std::cerr << "Error creating socket\n";
+        return;
+    }
+
+    sockaddr_in serverAddr;
+    serverAddr.sin_family = AF_INET;
+    serverAddr.sin_addr.s_addr = INADDR_ANY;
+    serverAddr.sin_port = htons(port);
+
+    if (bind(serverSocket, (struct sockaddr *)&serverAddr, sizeof(serverAddr)) < 0) {
+        std::cerr << "Bind failed\n";
+        return;
+    }
+
+    if (listen(serverSocket, 5) < 0) {
+        std::cerr << "Listen failed\n";
+        return;
+    }
+
+    std::thread listenerThread(&TCPServer::Listen, this);
+    listenerThread.detach();
+}
+
+void TCPServer::Stop() {
+    running = false;
+    close(serverSocket);
+
+    for (auto& thread : clientThreads) {
+        thread.join();
+    }
+}
+
+void TCPServer::Listen() {
+    while (running) {
+        sockaddr_in clientAddr;
+        socklen_t clientAddrLen = sizeof(clientAddr);
+        int clientSocket = accept(serverSocket, (struct sockaddr *)&clientAddr, &clientAddrLen);
+        if (clientSocket < 0) {
+            std::cerr << "Accept failed\n";
+            continue;
+        }
+
+        std::thread clientThread(&TCPServer::HandleClient, this, clientSocket);
+        clientThreads.push_back(std::move(clientThread));
+    }
+}
+
+void TCPServer::HandleClient(int clientSocket) {
+    // Handle client communication here
+    // For demonstration, just echo received messages back to the client
+    char buffer[1024];
+    int bytesRead;
+    while ((bytesRead = recv(clientSocket, buffer, sizeof(buffer), 0)) > 0) {
+        send(clientSocket, buffer, bytesRead, 0);
+    }
+
+    close(clientSocket);
+}
+````
+## 2nd question
+_great, how about a main.cpp for this?_
+## 2nd reply (1st of 2)
+_Certainly! Here's a simple main.cpp file that demonstrates how to create an instance of the TCPServer class and start the server:_
+````cpp
+#include "server.h"
+
+int main() {
+    // Port number to listen on
+    int port = 8080;
+
+    // Create an instance of the server
+    TCPServer server(port);
+
+    // Start the server
+    server.Start();
+
+    // Wait for user input to stop the server
+    std::cout << "Server is running. Press any key to stop.\n";
+    std::cin.get();
+
+    // Stop the server
+    server.Stop();
+
+    std::cout << "Server stopped.\n";
+    return 0;
+}
+````
+
diff --git a/ChatGPT/main.cpp b/ChatGPT/main.cpp
new file mode 100644
index 0000000..e69de29
diff --git a/ChatGPT/server.cpp b/ChatGPT/server.cpp
new file mode 100644
index 0000000..fd615fc
--- /dev/null
+++ b/ChatGPT/server.cpp
@@ -0,0 +1,71 @@
+#include "server.h"
+
+TCPServer::TCPServer(int port) : port(port), running(false) {}
+
+TCPServer::~TCPServer() {
+    Stop();
+}
+
+void TCPServer::Start() {
+    running = true;
+
+    serverSocket = socket(AF_INET, SOCK_STREAM, 0);
+    if (serverSocket == -1) {
+        std::cerr << "Error creating socket\n";
+        return;
+    }
+
+    sockaddr_in serverAddr;
+    serverAddr.sin_family = AF_INET;
+    serverAddr.sin_addr.s_addr = INADDR_ANY;
+    serverAddr.sin_port = htons(port);
+
+    if (bind(serverSocket, (struct sockaddr *)&serverAddr, sizeof(serverAddr)) < 0) {
+        std::cerr << "Bind failed\n";
+        return;
+    }
+
+    if (listen(serverSocket, 5) < 0) {
+        std::cerr << "Listen failed\n";
+        return;
+    }
+
+    std::thread listenerThread(&TCPServer::Listen, this);
+    listenerThread.detach();
+}
+
+void TCPServer::Stop() {
+    running = false;
+    close(serverSocket);
+
+    for (auto& thread : clientThreads) {
+        thread.join();
+    }
+}
+
+void TCPServer::Listen() {
+    while (running) {
+        sockaddr_in clientAddr;
+        socklen_t clientAddrLen = sizeof(clientAddr);
+        int clientSocket = accept(serverSocket, (struct sockaddr *)&clientAddr, &clientAddrLen);
+        if (clientSocket < 0) {
+            std::cerr << "Accept failed\n";
+            continue;
+        }
+
+        std::thread clientThread(&TCPServer::HandleClient, this, clientSocket);
+        clientThreads.push_back(std::move(clientThread));
+    }
+}
+
+void TCPServer::HandleClient(int clientSocket) {
+    // Handle client communication here
+    // For demonstration, just echo received messages back to the client
+    char buffer[1024];
+    int bytesRead;
+    while ((bytesRead = recv(clientSocket, buffer, sizeof(buffer), 0)) > 0) {
+        send(clientSocket, buffer, bytesRead, 0);
+    }
+
+    close(clientSocket);
+}
diff --git a/ChatGPT/server.h b/ChatGPT/server.h
new file mode 100644
index 0000000..ce5e96d
--- /dev/null
+++ b/ChatGPT/server.h
@@ -0,0 +1,33 @@
+#ifndef SERVER_H
+#define SERVER_H
+
+#include <iostream>
+#include <thread>
+#include <vector>
+#include <mutex>
+#include <condition_variable>
+#include <atomic>
+#include <cstring>
+#include <arpa/inet.h>
+#include <unistd.h>
+#include <sys/socket.h>
+
+class TCPServer {
+public:
+    TCPServer(int port);
+    ~TCPServer();
+
+    void Start();
+    void Stop();
+
+private:
+    void Listen();
+    void HandleClient(int clientSocket);
+
+    int port;
+    int serverSocket;
+    std::vector<std::thread> clientThreads;
+    std::atomic<bool> running;
+};
+
+#endif // SERVER_H