You will need to use iCloud on your computer and iOS device, with them you can manage the data from iCloud on your iPhone, iPad, or iPod touch. When syncing with your computer, you can sync with the USB cable that came with your device, or over Wi-Fi when the computer and iOS device are on the same Wi-Fi network. But transferring apps, photos, contacts and videos needs different operation, you can check that on apple’s support to get further information. Or just simply google
iPhone to Computer Transfer to get some useful tools.