Operational skills mean having the ability to use operate on various digital media, devices and applications to accomplish practical taks and recognize specific online environments. Also you must be able to navigate though them while maintaing orientation. For instance, operating an Internet browser, online search engines, complete online forms and documents.
The relation between 21st-century skills and digital skills: A systematic literature review
Improving digital skills for the use of online public information and services
Primary School Children’s Internet Skills:
A Report on Performance Tests of Operational, Formal,
Information, and Strategic Internet Skills