Not sure if this is what you mean but since laptops are mobile (they’re literally mobile computers,) you could just say ‘laptops’ and it would mean the same thing. You could say ‘devices’ to be reaaaally general, but if you say ‘laptop’ it means the same thing as ‘mobile laptop’. So you could just say “Laptop” to mean the same thing in one word.
A random sample is a subset of individuals that are randomly selected from a population of interest. Because researchers usually cannot obtain data from every single person in a group due to time, costs and other constraints, a smaller portion is randomly chosen to represent the entire group as a whole. The goal is to get a sample that is representative of the larger population.
Writer
The byline appears at the top of the page and is usually the second line of an article, after the title and before the text of the article, letting the reader know who wrote the piece. It's an important factor to consider when designing the layout of a page.