diff --git a/Customer Management System.py b/Customer Management System.py
new file mode 100644
index 0000000..4077989
--- /dev/null
+++ b/Customer Management System.py	
@@ -0,0 +1,79 @@
+# Question 1: Use a dictionary structure to store customer info with unique ID
+customers = {}
+
+# Question 2: Provide a menu for user actions
+while True:
+
+    print("\n1. Add new customer")
+    print("2. Update customer")
+    print("3. Delete customer")
+    print("4. List all customers")
+    print("5. Check out (exit)")
+
+    choice = input("Choose an option: ")
+
+    # Question 3: Perform action based on user choice — Add customer
+    if choice == "1":
+        customer_id = input("Enter customer ID: ")
+        first_name = input("Enter first name: ")
+        last_name = input("Enter last name: ")
+        email = input("Enter email: ")
+        phone = input("Enter phone number: ")
+
+        customers[customer_id] = {
+            "first_name": first_name,
+            "last_name": last_name,
+            "email": email,
+            "phone": phone
+        }
+
+        print("Customer added!")
+
+    # Question 4: Update customer info using ID
+    elif choice == "2":
+        customer_id = input("Enter customer ID to update: ")
+        if customer_id in customers:
+            print("Current info:", customers[customer_id])
+            first_name = input("New first name: ")
+            last_name = input("New last name: ")
+            email = input("New email: ")
+            phone = input("New phone number: ")
+
+            customers[customer_id] = {
+                "first_name": first_name,
+                "last_name": last_name,
+                "email": email,
+                "phone": phone
+            }
+            print("Customer updated.")
+        else:
+            print("Customer not found.")
+
+    # Question 5: Delete customer by ID
+    elif choice == "3":
+        customer_id = input("Enter customer ID to Delete: ")
+        if customer_id in customers:
+            del customers[customer_id]
+            print("Customer deleted.")
+        else:
+            print("Customer not found!")
+
+    # Question 6: List all customers
+    elif choice =="4":
+        if customers:
+            for customer_id, info in customers.items():
+                print("ID:", customer_id)
+                print("Name:", info["first_name"], info["last_name"])
+                print("Email:", info["email"])
+                print("Phone:", info["phone"])
+                print("-" * 10)
+        else:
+            print("No customers yet.")
+
+    # Question 7: Repeat until user logs out
+    elif choice == "5":
+        print("Exiting Customer Management System. Goodbye!")
+        break
+
+    else:
+        print("Invalid option. Please choose 1–5.")
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diff --git a/Film Library Management System Project.py b/Film Library Management System Project.py
new file mode 100644
index 0000000..a796bd9
--- /dev/null
+++ b/Film Library Management System Project.py	
@@ -0,0 +1,98 @@
+import json
+
+
+# Question 4: Restore the movie data when the program starts
+try:
+    with open("mov.json", "r") as file:
+        movie_library = json.load(file)
+except FileNotFoundError:
+    movie_library = []
+
+
+
+
+
+# Question 2: Delete a field from a movie
+def delete_movie(movie):
+    key_to_delete = input("Which field do you want to delete? (e.g., genre): ")
+    if key_to_delete in movie:
+        del movie[key_to_delete]
+        print(f"{key_to_delete} was deleted.")
+    else:
+        print("That field does not exist.")
+
+# Question 3: View the movie collection (all, by genre, or year)
+def view_movies():
+    choice = input("View all movies (all), by genre (genre), or by year (year)?: ")
+    if choice == "all":
+        for m in movie_library:
+            print(m)
+    elif choice == "genre":
+        g = input("Enter genre: ")
+        for m in movie_library:
+            if "genre" in m and m["genre"].lower() == g.lower():
+                print(m)
+    elif choice == "year":
+        y = input("Enter release year: ")
+        for m in movie_library:
+            if "Release year" in m and m["Release year"] == y:
+                print(m)
+    else:
+        print("Invalid option.")
+
+# Question 4: Save the movie data in a file
+def save_to_file():
+    with open("mov.json", "w") as file:
+        json.dump(movie_library, file, indent=4)
+
+# Question 1: Create a movie dictionary with user input
+movie = {
+    "Movie name": input("Enter Movie: "),
+    "Release year": input("Enter release year: "),
+    "genre": input("Enter genre: "),
+    "director": input("Enter director: ")
+}
+movie_library.append(movie)
+save_to_file()
+print("First movie saved!")
+
+
+while True:
+    print("\n Movie Library Menu:")
+    print("1. Add another movie")
+    print("2. View movies")
+    print("3. Delete a field from last added movie")
+    print("4. Exit")
+
+    action = input("Choose an option: ")
+
+    if action == "1":
+        new_movie = {
+            "Movie name": input("Enter Movie: "),
+            "Release year": input("Enter release year: "),
+            "genre": input("Enter genre: "),
+            "director": input("Enter director: ")
+        }
+
+
+        movie_library.append(new_movie)
+        print("Movie added!")
+        save_to_file()
+
+    elif action == "2":
+        view_movies()
+
+    elif action == "3":
+        if movie_library:
+            delete_movie(movie_library[-1])
+            save_to_file()
+        else:
+            print("No movie to delete from.")
+
+    elif action == "4":
+        print("Goodbye!")
+        save_to_file()
+        break
+
+    else:
+        print("Invalid selection. Try again.")
\ No newline at end of file
diff --git a/Student Grades Processing.py b/Student Grades Processing.py
new file mode 100644
index 0000000..7c965e5
--- /dev/null
+++ b/Student Grades Processing.py	
@@ -0,0 +1,70 @@
+students = {
+    'Ahmet Yılmaz': [85, 90, 78],
+    'Mehmet Demir': [92, 88, 76],
+    'Ayşe Kaya': [78, 89, 95],
+    'Zeynep Çelik': [65, 70, 80],
+    'Ali Kara': [50, 60, 55],
+    'Fatma Yıldız': [88, 85, 90],
+    'Murat Aydın': [72, 68, 74],
+    'Elif Aksoy': [95, 90, 88],
+    'Hakan Öztürk': [45, 50, 55],
+    'Canan Taş': [80, 75, 82]
+}
+
+# ----------------------------
+# Question 1: Calculate the GPA of each student
+# ----------------------------
+top_student = None
+top_gpa = 0
+low_gpa_students = set()  # For Q5
+
+print("GPAs:\n")
+low_gpa_students = set()
+for name, grades in students.items():
+    gpa=sum(grades)/3
+
+
+    # For Question 2
+    if gpa > top_gpa:
+        top_gpa=gpa
+        top_student=name
+
+    # For Question 5: Add to set if GPA is below 70
+    if gpa < 70:
+        low_gpa_students.add(name)
+    print(f"{name}: {gpa:.2f}")
+
+# ----------------------------
+# Question 2: Print the student with the highest GPA
+# ----------------------------
+print("\nTop student is:", top_student)
+print("With GPA:", f"{top_gpa:.2f}")
+
+
+# ----------------------------
+# Question 3: Separate names into (first_name, last_name) tuples
+# ----------------------------
+name_tuples = []
+
+for student in students:
+    first_name, last_name = student.split()
+    name_tuples.append((first_name, last_name))
+
+
+print("\nList of name tuples:")
+print(name_tuples)
+
+
+# ----------------------------
+# Question 4: Sort the name tuples alphabetically
+# ----------------------------
+
+name_tuples.sort()
+print("Sorted names:")
+print(name_tuples)
+
+# ----------------------------
+# Question 5: Print students with GPA below 70 (stored in a set)
+# ----------------------------
+print("low gpa studnets")
+print(low_gpa_students)
diff --git a/mov.json b/mov.json
new file mode 100644
index 0000000..d1e20d3
--- /dev/null
+++ b/mov.json
@@ -0,0 +1,8 @@
+[
+    {
+        "Movie name": "Inception",
+        "Release year": "2010",
+        "genre": "Action",
+        "director": "Christopher"
+    }
+]
\ No newline at end of file