If not have CD ROM

What if have to download programs to mobile phone and transfer it to laptops via memory card.

Why not flash drive? If phone has USB OTG. Or over WiFi with FTP. And what is common with Arduino?

Your phone can probably act as a modem (via USB or tethering).

Your topic has been moved to a more suitable location on the forum. Introductory Tutorials is not for questions.

Yes, you can download it to your phone.
Then you can use a usb cable to access the files on the phone, use a flash drive that connects to your charging port, or as a last resort you can pull the TF card and put it in your laptop.