Alphanumeric character display scheme for programmable electronic calculators
    1.
    发明授权
    Alphanumeric character display scheme for programmable electronic calculators 失效
    可编程电子计算器的字母数字字符显示方案

    公开(公告)号:US3911424A

    公开(公告)日:1975-10-07

    申请号:US50341874

    申请日:1974-09-05

    Applicant: IBM

    CPC classification number: G06F3/0219 G06F3/0238 G06F3/147 G06F15/02 H01H13/84

    Abstract: A keyboard operated programmable electronic calculator is provided with a light display and individual key lights for the numeric and function keys. A program is entered into storage by operation of the numeric and function keys when the calculator is activated to the program mode by a first control key. The program is read out of storage by operation of a second control key. Control logic under control of the calculator CPU operates the light display and the individual key lights in response to manual operation of the second control key to identify the program step and its program parameter for checking purposes.

    Abstract translation: 键盘操作的可编程电子计算器具有数字和功能键的光显示和单独的键灯。 当通过第一控制键将计算器激活到程序模式时,通过数字和功能键的操作将程序输入到存储器中。 通过第二控制键的操作将程序读出存储器。 在计算器CPU控制下的控制逻辑响应于第二控制键的手动操作来操作光显示和单个键灯,以识别程序步骤及其程序参数用于检查目的。

    2.
    发明专利
    未知

    公开(公告)号:FR2284153A1

    公开(公告)日:1976-04-02

    申请号:FR7521490

    申请日:1975-07-04

    Applicant: IBM

    Abstract: A keyboard operated programmable electronic calculator is provided with a light display and individual key lights for the numeric and function keys. A program is entered into storage by operation of the numeric and function keys when the calculator is activated to the program mode by a first control key. The program is read out of storage by operation of a second control key. Control logic under control of the calculator CPU operates the light display and the individual key lights in response to manual operation of the second control key to identify the program step and its program parameter for checking purposes.

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