1. An input circuit for an electronic translator wherein a first input word represented in a first language is entered to obtain a second word represented in a second language equivalent to the first word, said input circuit comprising: an alphabetical keyboard means comprising a plurality of letter keys, each letter key comprising means for entering key code information representative of a sole letter; a sole symbol additive key switch for adding any one of a plurality of different specific symbols to at least two of the letters entered by the alphabetical keyboard means, and changing means responsive to actuation of the alphabetical keyboard means and the symbol additive key switch for changing the key code of any one of the at least two letters entered by the alphabetical keyboard means to a key code representing a letter including one of said specified different symbols and said one letter, wherein said changing means comprises key strobe signal generator means for providing key strobe signals to the alphabetical keyboard means, said keyboard means acting upon said key strobe signals to provide said key code information; memory means for storing data corresponding to key code information representing said at least two letters; first means for determining when key code information input by said alphabetical keyboard means is the same as said data in said memory corresponding to said key code information representing one of said at least two letters; second means for generating information representative of any one of said plurality of different specific symbols in response to actuation of said sole symbol additive key switch; and third means responsive to said first and second means for combining said information representative of any one of said plurality of different specific symbols with the key code information representing said one of said at least two letters for forming a new type of code information representative of said one letter including one of said specific symbols.
4. The circuit according to claim 1, further comprising additional memory means coupled to an address counter means which is responsive to actuation of said alphabetical keyboard means for providing address information to said additional memory means, whereby said additional memory means stores each letter input by said alphabetical keyboard means in order.