Boots – shoes – and leggings
Patent
1977-06-01
1979-07-24
Malzahn, David H.
Boots, shoes, and leggings
364200, G06K 1518, G06F 314
Patent
active
041625323
ABSTRACT:
An adaptable programmable calculator is provided by employing modular read-write and read-only memory units capable of being expanded to provide the calculator with additional program and data storage functions oriented towards the environment of the user, a central processing unit, and an input-output control unit for bidirectionally transferring information between the memory or central processing units and a number of input and output units. The memory, central processor, and input-output control units are controlled by a microprocessor included in the central processing unit. The input and output units include a keyboard input unit, a magnetic card reading and recording unit, a solid state multi-character output display unit capable of displaying every alphabetic and numeric character and many other symbols individually and in a line of one or more alphameric statements, and a thermal printer unit. The keyboard input unit includes a display control key for entering a DISPLAY statement into the calculator and an execute control key for initiating execution of a line of alphameric statements entered into the calculator. The DISPLAY statement may be manually or programmably employed to cause the calculator to display the results of arithmetic expressions, alphameric messages, or the contents of any memory register without thereby altering the contents thereof. By means of fixed point and floating point control keys, the user may manually or programmably designate either fixed point or floating point notation for all subsequently displayed data. The notation currently in effect may be altered by the user during program execution by simply actuating either the fixed point or floating point control key.
REFERENCES:
patent: 3675213 (1972-07-01), Spangler
patent: 3760171 (1973-09-01), Wang et al.
patent: 3859635 (1975-01-01), Watson et al.
patent: 3996562 (1976-12-01), Reach et al.
Covington Wayne F.
James Rex L.
Larson Ivar W.
Olander Jr. Emil E.
Russell Homer C.
Hein William E.
Hewlett--Packard Company
Malzahn David H.
LandOfFree
Programmable calculator including data format display control me does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Programmable calculator including data format display control me, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Programmable calculator including data format display control me will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1290293