Please capitalize where necessary: and oman has undergone a tremendous change since it became independent of great britain. until the coup of 1970 oman was a closed country with a medieval government and extreme poverty.
A: And Oman has undergone a tremendous change since it became independent of Great Britain. Until the coup of 1970 Oman was a closed country with a medieval government and extreme poverty.
Q: a manufacturer of led neon tube vedio type at guangdong china.

A: A manufacturer of LED NEON TUBE Vedio Type at GuangDong China.
Q: move the mouse pointer to the lower-left corner of the desktop.
A: Move the mouse pointer to the lower-left corner of the desktop.
Problem: full one system care removal instructions
Can you repeat this sentence, but capitalize it?
Answer: Full One System Care removal instructions
Text: a number of products (14) were examined for a content of chlorine in the packaging material as an indication that the material was made of pvc.

Correct capitalization: A number of products (14) were examined for a content of chlorine in the packaging material as an indication that the material was made of PVC.
Please capitalize where necessary: beautiful french mirrored vanity / dressing table, circa 1920 – 1940’s, with a charming matching small chair, which is newly upholstered in a gorgeous pale rose velvet.
A:
Beautiful French mirrored vanity / dressing table, circa 1920 – 1940’s, with a charming matching small chair, which is newly upholstered in a gorgeous pale rose velvet.