Background modules are processes that automatically fire up in the background on your server.
Without the help of a Cron Job, the modules are pushed to run while someone is active on your site. If no one is browsing your site the jobs will be pushed as soon as someone is.
You can set up a cron job on https://www.easycron.com and push any jobs by placing a HTTP request to http://www.yoursite.com/push_jobs.php. Note LiteCart will not push any jobs if the last push was within the minimum time of rest.
The minimum amount of minutes for the job engine to rest can be set under Settings.
Example of push command:
wget -qO- http://www.yourstore.com/index.php/push_jobs > /dev/null