公开(公告)号：US4180854A

公开(公告)日：1979-12-25

申请号：US837771

申请日：1977-09-29

申请人： Jack M. Walden ,  William D. Eads ,  Ray J. Cozzens ,  John L. Bidwell ,  Robert A. Jewett ,  Martin S. Wilson ,  Daniel J. Griffin ,  Robert E. Kuseski ,  Louis T. Schulte

发明人： Jack M. Walden ,  William D. Eads ,  Ray J. Cozzens ,  John L. Bidwell ,  Robert A. Jewett ,  Martin S. Wilson ,  Daniel J. Griffin ,  Robert E. Kuseski ,  Louis T. Schulte

IPC分类号： G06F15/02 ,  G06F3/02 ,  G06F3/14

CPC分类号： G06F15/02

摘要： A programmable calculator employs modular read-write and read-only memories separately expandable to provide additional program and data storage functions within the calculator oriented toward the environment of the user and two sixteen bit LSI NMOS central processing units. One of the central processing units (LPU) is employed to perform language syntaxing, arithmetic, and general supervision of program execution. The second central processing unit (PPU) is employed for managing input/output operations. Communication between the two central processing units is accomplished by an arrangement through which the two central processing units share a common portion of memory. The calculator also includes a keyboard having a full complement of alphanumeric keys for entering programs and data into the calculator and for otherwise allowing the user to control operation of the calculator. The calculator further includes a CRT that can be operated in either an alphanumeric mode or a graphics mode, two magnetic tape transports that permit the user to store information into and to retrieve information from the user portion of the calculator read-write memory, and an 80-column thermal printer utilizing a print head that includes 560 thermal print resistors arranged in a single horizntal row.

摘要翻译： 可编程计算器采用单独可扩展的模块化读写和只读存储器，在计算器内提供额外的程序和数据存储功能，面向用户环境和两个十六位LSI NMOS中央处理器。 中央处理单元（LPU）之一用于执行程序执行的语言语法，算术和一般监督。 第二个中央处理单元（PPU）用于管理输入/输出操作。 两个中央处理单元之间的通信由两个中央处理单元共享存储器的公共部分的布置来实现。 该计算器还包括具有全部字母数字键的键盘，用于将程序和数据输入到计算器中，并且否则允许用户控制计算器的操作。 计算器还包括可以以字母数字模式或图形模式操作的CRT，允许用户将信息存储到计算器读写存储器的用户部分并从其中检索信息的两个磁带传输，以及 80列热敏打印机利用包括布置在单个水平行中的560个热敏印刷电阻器的打印头。

公开(公告)号：US4455618A

公开(公告)日：1984-06-19

申请号：US236394

申请日：1981-02-20

申请人： Jack M. Walden ,  William D. Eads ,  Ray J. Cozzens ,  John L. Bidwell ,  Robert A. Jewett ,  Martin S. Wilson ,  Daniel J. Griffin ,  Robert E. Kuseski ,  Louis T. Schulte

发明人： Jack M. Walden ,  William D. Eads ,  Ray J. Cozzens ,  John L. Bidwell ,  Robert A. Jewett ,  Martin S. Wilson ,  Daniel J. Griffin ,  Robert E. Kuseski ,  Louis T. Schulte

IPC分类号： G06F15/02

CPC分类号： G06F15/02

摘要： A programmable calculator employs modular read-write and read-only memories separately expandable to provide additional program and data storage functions within the calculator oriented toward the environment of the user and two sixteen bit LSI NMOS central processing units. One of the central processing units (LPU) is employed to perform language syntaxing, arithmetic, and general supervision of program execution. The second central processing unit (PPU) is employed for managing input/output operations. Communication between the two central processing units is accomplished by an arrangement through which the two central processing units share a common portion of memory. The calculator also includes a keyboard having a full complement of alphanumeric keys for entering programs and data into the calculator and for otherwise allowing the user to control operation of the calculator. The keyboard further includes a plurality of user-definable keys, some of which are pre-defined to have certain definitions at the time operating power is applied to the calculator.

摘要翻译： 可编程计算器采用单独可扩展的模块化读写和只读存储器，在计算器内提供额外的程序和数据存储功能，面向用户环境和两个十六位LSI NMOS中央处理器。 中央处理单元（LPU）之一用于执行程序执行的语言语法，算术和一般监督。 第二个中央处理单元（PPU）用于管理输入/输出操作。 两个中央处理单元之间的通信由两个中央处理单元共享存储器的公共部分的布置来实现。 该计算器还包括具有全部字母数字键的键盘，用于将程序和数据输入到计算器中，并且否则允许用户控制计算器的操作。 键盘还包括多个用户可定义的键，其中一些键被预先定义为在操作电力被施加到计算器时具有某些定义。