... a file that contains codes which are not part of the ASCII character set . ... Recipients cannot see who else has received the message: hence the term "blind". this term derives from `bootstrap loader', a short program that was read in from cards or paper tape, or toggled in from the front panel switches. ... a temporary area of memory which data can be read from and written to. a unit of memory or data consisting of 8 bits which is used to represent one character. ...