WIN + D minimizes all windows to show desktop. WIN + M is identical but cannot be reversed. WIN + , shows desktop without interacting
Restarting the laptop can resolve many technical issues. Re-enabling touch screen through Device Manager may fix problems
PowerPoint 2019+ offers various drawing tools for slides and presentations. Pen tool is main drawing option, Highlighter provides translucent alternative. Drawing tools can be customized with colors and sizes. Drawing options remain constant during presentation
Smartphones use capacitive screens requiring electrical conductivity. Nintendo devices use resistive or infrared screens requiring only pressure. Capacitive screens need finger proximity, resistive/infrared only pressure
Input devices provide data and control signals to computer systems. Devices can be categorized by output modality and degrees of freedom
Touchpad detects finger motion and translates it to 2D cursor control. Common on laptops, less prevalent on desktops. Can be wireless or standalone accessories. Uses capacitive sensing or resistive touchscreen technology