How to create module in magento?

app/etc/modules/Custom_Manufacturerlogo.xml

app/code/local/Custom/Manufacturerlogo/Block/Manufacturerlogo.php

app/code/local/Custom/Manufacturerlogo/controllers/IndexController.php

app/code/local/Custom/Manufacturerlogo/etc/config.xml

app/code/local/Custom/Manufacturerlogo/Model/Manufacturerlogo.php

app/code/local/Custom/Manufacturerlogo/Model/Mysql4/Manufacturerlogo.php

app/code/local/Custom/Manufacturerlogo/Model/Mysql4/Manufacturerlogo/Collection.php

app/code/local/Custom/Manufacturerlogo/Model/Status.php

app/code/local/Custom/Manufacturerlogo/sql/manufacturerlogo_setup/mysql4-install-0.1.0.php

app/design/frontend/default/default/layout/manufacturerlogo.xml

app/design/frontend/default/default/template/manufacturerlogo/manufacturerlogo.phtml

app/code/local/Custom/Manufacturerlogo/Block/Adminhtml/Manufacturerlogo.php

app/code/local/Custom/Manufacturerlogo/Block/Adminhtml/Manufacturerlogo/Edit.php

app/code/local/Custom/Manufacturerlogo/Block/Adminhtml/Manufacturerlogo/Grid.php

app/code/local/Custom/Manufacturerlogo/Block/Adminhtml/Manufacturerlogo/Edit/Form.php

app/code/local/Custom/Manufacturerlogo/Block/Adminhtml/Manufacturerlogo/Edit/Tabs.php

app/code/local/Custom/Manufacturerlogo/Block/Adminhtml/Manufacturerlogo/Edit/Tab/Form.php

app/code/local/Custom/Manufacturerlogo/controllers/Adminhtml/ManufacturerlogoController.php

app/code/local/Custom/Manufacturerlogo/Helper/Data.php

app/design/adminhtml/default/default/layout/manufacturerlogo.xml