Portability synonyms: Mobility, Transportability, Migratability. "Lightweight": Compact, Small, Slender. "Carried": Transported, Moved, Taken. "Laptop, tablet, smartphone" are proper nouns? No, they are common nouns, so find synonyms. Laptop could be notebook computer, netbook, desktop. Tablet: e-reader, slates, touch device. Smartphone: mobile phone, cellular, handheld.
Replace each word except "the Authors" if "About" is not a proper noun. "About" can be: Concerning. "the" is an article, maybe change to a as before. engineering physics by r.k. gaur and s.l. gupta pdf
"covers" → includes