Boots – shoes – and leggings
Patent
1977-06-01
1980-02-05
Malzahn, David H.
Boots, shoes, and leggings
364200, G06F 312
Patent
active
041875478
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 capable of 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 with a plurality of sections capable of being defined by plug-in read-only memory modules and stored programs added by the user, a magnetic card reading and recording unit capable of bidirectionally transferring information between an external magnetic card and the calculator, a solid state 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 line printer capable of printing on thermally sensitive paper every alphabetic and numeric character and many other symbols individually and in alphameric statements or messages. A printer spacing control command that may be executed either from the keyboard input unit or under control of a program stored in the read-write memory unit enables the user to introduce a blank space between printed lines on the paper, the blank space being equal to the number of lines specified in the printer spacing control command.
REFERENCES:
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 means for controllably introdu 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 means for controllably introdu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Programmable calculator including means for controllably introdu will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2182893