I am a programmer, i have a old laptop with the same configuration as below: cpu Core 2 duo Intel T5870 2GHz, Ram 1GB. Can i use Ubuntu version for my work ? Thanks for help!
According to https://docs.lubuntu.net/lubuntu_installation_on_old_computers.html, the minimum requirements for Lubuntu 18.04 is 1 GB of RAM. You should use Lubuntu, here is a link to the download page for Lubuntu: https://lubuntu.net/downloads/
Lubuntu is a lighter version of Ubuntu, which uses the LXDE desktop environment, rather than GNOME.