Sony PCV-E201 User Guide - Page 213

Computer Basics D The keyboard also has three lights: Light Num Lock Cap Lock Scroll Lock On Off The number keys on the The arrow keys, navigation numeric keypad keys, and correction keys on are active. the keypad are active. Letters appear in uppercase as you type. The SHIFT key lowers the case of typed letters when Cap Lock is on. Letters appear in lower case as you type (unless you hold down the SHIFT key). The screen scrolls Information moves across the differently. (Exactly display normally. how it scrolls depends on the specific application. It has no effect in many applications.)