Documentation for the AT&T Sceptre Videotex terminal

If you mean that keyboards only have upper case glyphs on them, then I agree with you. I have never seen a keyboard with lower case printed on it. But there have been many keyboards that contain hardware to encode the keystroekes to ASCII, and some (most?) of those will output the upper or lower case character code for each key depending on the state of the shift key,. But some early oens didn't, they sent upper case only. I have an old ITT video terminal here ('old' meaning the video memory is shift reguisters...). Originally, the display section would correctly display upper and lower case ASCII characters, but the keybaord would only send upper case. There was a scheamtici n the technical manual for an optional modification to the keyboard (3 added TTL chips IIRC) to implelent lower case, shift lock, etc. I added it to mine. -tony