(This diagram is seriously out of date. It's ugly too.. It was designed for system font and redefinable character.)
HCS
VBS
///// Border //////
VDS ////
// Display //
|| // // VCS
// // VCE
// Cursor //
VDE ////
///////////////////
VBE
VC
HBS - HBE
VSW HDS - HDE
HC HSW
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