公开(公告)号：US3579196A

公开(公告)日：1971-05-18

申请号：US3579196D

申请日：1969-02-14

Applicant: BUNKER RAMO

Inventor： GREGG ROLAND S JR ,  DANBERG ARNOLD S ,  LARSON KENNETH N

IPC: G06F3/153 ,  G06F3/023 ,  G06F3/048 ,  G06F9/44 ,  G09G5/32 ,  G11B13/00

CPC classification number: G06F9/4446 ,  G06F3/04895

Abstract: A data storage and display system is provided with a control feature for selectively displaying stored message formats having fields into which data is to be entered by an operator. The feature includes means for insuring that the data entered into each field is of the numeric or alphabetic type if either has been specified on a character-by-character basis. If the operator attempts to enter any other type of character for a given specified character, an error is indicated and a correct character must be entered before proceeding to the next character in the same or different field. There is also provision for determining whether entries in all fields have been completed before the message format can be transferred to a file storage and control unit.