File: A2B.EXE (x86 DOS executable)
File: B2A.EXE (x86 DOS executable)
File: Baudot.txt (ASCII or Unicode plain text file)
File: CLEAN.EXE (x86 DOS executable)
File: SERTEST.HEX (hexadecimal ASCII encoded binary)
File: T2.ASC (ASCII text)
File: T2.BDO (Probably text)
File: T2.RAW (General term for minimally processed image data)
File: TTY.HEX (hexadecimal ASCII encoded binary)
File: TTY.SRC (Probably text)
File: model02a.bas (BASIC and variants)
File: sertest.asm (Assembly language source)
File: tty.asm (Assembly language source)
File: tty.old (Probably text)