A keyboard for a word processor is disclosed that combines a Universal (qwerty) keyboard with touch type editing means. Editing functions are those that provide cursor movement (e.g. the arrow keys) or the delete or insert functions. Touch typing means are those that can be accessed rapidly without large arm movements and while at least one finger of each hand remains on a home key. Touch type editing can be provide most easily by adding keys accessed by the thumbs, the only digits underutilized...

An apparatus for and a method of storing binary data in a thin ferromagnetic film strip as the presence or absence of Bloch-lines without the presence of cross-ties. The apparatus utilizes a serrated strip of isotropic magnetic material that is formed in the shape of a series of contiguous disks. Each pair of contiguous disks is coupled by a narrow section of magnetic material that functions as a "door" between adjacent disks through which the Bloch-line defining datum bit may be propagated when...

An electrically alterable apparatus and method of operation thereof that permits the optical processing of an image is disclosed. The apparatus includes an array of optical cells comprised of a plurality of XY stripline arrays and a stripedomain film element. The stripe-domain wall separation and wall orientation at each point in the film element are selectively controllable for generating in the optical cell array an electrically alterable hologram. Domain wall configurations to perform various...

A method of and a configuration for reading out the information that is stored in a cross-tie wall memory system is disclosed. The apparatus utilizes: a slotted sense line that is aligned along and that straddles the cross-tie wall; a hard axis drive field H.sub.T that passes, if in existence, a stored-1-representing-Bloch-line from a memory segment into and through the slot of the sense line; an easy axis drive field H.sub.L that induces in the sense line an output signal that is indicative of ...

A gate valve apparatus which includes a housing having a passageway defined therein for a fluent material, a generally planar gate, and apparatus for supporting the gate within the housing. The apparatus for supporting allows movement of the gate in opposed first and second directions that are generally parallel to the generally planar gate. The apparatus also includes an annular seal carried on the housing around the perimeter of the passageway and apparatus for moving the gate in a direction s...

Disclosed is an apparatus for and a method of establishing the domain walls within a stripe-domain supporting magnetizable film in a radially directed orientation, the separation of which is proportional to the distance from the center of the diffraction grating. The apparatus includes means for coupling to the stripe-domain supporting magnetizable film an orienting field that is directed orthogonal to the plane of the film but whose intensity from the center of the field source is inversely pro...

An apparatus for and a method of correcting chromatic aberration in a multiwavelength input light beam deflection system incorporating a magneto-optic diffraction grating is disclosed. The diffraction grating generates a chromatic aberration induced plurality of first order light beams from the multiwavelength input light beam, each different wavelength light beam being deflected a correspondingly different angle .lambda. by the diffraction grating. Correction plates, designed to provide zero ch...

The method of and a configuration for reading out the information that is stored in a cross-tie wall memory system is disclosed. The apparatus utilizes: a continuously, relatively long, sense line that is aligned along and straddles the cross-tie wall; a first polarity hard axis drive field H.sub.Tt that passes, if in existence, a stored-1-representing-Bloch-line from a memory segment along the cross-tie wall into, along and past the continuous sense line; a second polarity hard axis drive field...

An apparatus for and a method of parallelizing the conjugate deflected light beams of a magneto-optic light deflector system. The apparatus includes two converging half-lenses, the centers of which are removed. The two converging half-lenses are oriented superposed with their centers aligned along the center of the light beam that is directed normally incident to the plane of the magneto-optic light deflector. A converging lens is oriented in the optic axes of the parallelized conjugate light be...

An apparatus for and a method of providing an amplified, directable laser light beam is disclosed. The apparatus includes two optical cavities sharing a common mirror. The first cavity is resonant and contains a laser rod intermediate a high reflectivity reflecting mirror of 100% reflectivity and a low reflectivity transmitting mirror of 10-90% reflectivity. The second cavity is antiresonant and contains a Faraday effect diffraction grating intermediate the low reflectivity mirror and a 100% ref...