Abstract: A head gimbal assembly for a hard disk drive includes a head slider having a head element part which performs reading and/or writing of data to/from a magnetic disc and a suspension on which the head slider is mounted. Bonding pads formed on the head slider are formed on a side surface of the head slider except for an air bearing surface (ABS) which faces the magnetic disc and a back surface on a side opposite to the ABS. End peripheries of the bonding pads are arranged to be in contact with an end periphery of the side surface of the head slider which abuts on the back surface of the head slider.

Abstract: A magnetic head device is disclosed. The magnetic head device having a levitation attitude formed by an air stream on a surface thereof when a recording medium moves. A levitation height of a magnetic function unit can be stabilized even when air density of an operating environment is changed. In a middle region of a slider of a magnetic head device, a deep concave bottom portion is provided and a levitation pressure is not substantially generated. The levitation is exerted to a front positive pressure surface located in front of the middle region and a rear positive pressure surface located in the rear of the middle region.

Abstract: A magnetic head includes a first array of elements associated with a first data format and a second array of elements associated with a second data format, the elements being selected from a group consisting of readers, writers, and combinations thereof. The first and second arrays of elements are adjacent each other in a direction transverse to a direction of travel of a magnetic medium over the head.

Abstract: An actuator of an optical pickup head with horizontal-arranged magnetic field generator and coil apparatus. The actuator includes a lens holder, a magnetic field generator and a coil apparatus. The coil apparatus is horizontally disposed at one side or two sides of the lens holder and includes a focusing coil and a tracking coil, which are disposed on the same horizontal plane. The magnetic field generator includes a first magnet and a second magnet. The lens holder is horizontally placed between the first magnet and the second magnet. The first magnet and the second magnet respectively have a first magnetic area, a second magnetic area, a third magnetic area, a fourth magnetic area and a fifth magnetic area. Selecting different polarities of the magnetic surface near the coil apparatus in each area can produce a first magnetic field and a second magnetic field that are perpendicular to each other.

Abstract: A static posture correcting apparatus has a controller preparing a correction recipe-table, a measuring unit measuring a pitch angle and a roll angle of a head portion of a flexure of a head suspension, a laser irradiating unit irradiating laser beams on irradiation lines of a flexure of an objective head suspension, the controller selecting an effectual correction recipe from the correction recipe-table and controlling the laser irradiating section to irradiate laser beams on the irradiation lines of the flexure of the objective head suspension according to the selected correction recipe, wherein the controller considers variations among reference values of pitch angle and roll angle changes of the sample head suspensions when preparing the correction recipe-table and selects the recipe so as to diminish an expected variation in target static posture angle characteristic due to correction.

Abstract: A flexible wiring board for a magnetic head assembly is provided. The flexible wiring board includes a wiring pattern connected to a head body at one end and to an external circuit system at the other end, an insulation protection film that protects the wiring pattern, and a base composed of a metal that extends over the insulation protection film and the wiring pattern. The base has a guide through hole that functions as a guide for bending the base. The guide through hole has a plurality of notches disposed at different positions in a length direction of the base. The notches reduce a remaining width of the base in a bend width direction of the base.

Abstract: Provided are an actuator and a hard disk drive having the same. The actuator having a magnetic head and circularly movably mounted to move the head to a predetermined position on a disk, the actuator including: at least two arm members extending parallel to each other; a spacer interposed between and contacting the arm members to maintain a constant distance between the arm members and having a step portion to contact the arm members; a pivoting member inserted through throughholes respectively formed in the arm members and spacer, wherein the arm members and the spacer form a stack assembly and rotate around the pivot member; and a nut member screwed with the pivoting member at an end of the pivoting member and clamping the arm member and spacer with the pivoting member, wherein the step portion has a ring-shaped contact surface.

Abstract: An actuator assembly usable un a hard disk drive includes an actuator arm having an arm hole to improve dynamic characteristics. The actuator arm of the actuator assembly has an arm hole having first, second, and third extended portions, and two members positioned at both sides of the arm hole. The first extended portion is formed at an edge positioned at a leading end of the arm hole so that each of leading ends of the two members has a first reduced width, the second extended portions are formed at edges positioned at a rear end of the arm hole so that each of rear ends of the two members has a second reduced width, and the third extended portions are formed at both sides of a middle portion of the arm hole so that each of middle portions of the two members has a third reduced width.

Abstract: A magnetic field detection apparatus capable of changing the detection range and detection sensitivity as desired for a specific application is disclosed. A magnetoresistance effect element is applied a bias magnetic field and an external magnetic field. The bias magnetic field and the external magnetic field are generated on the same straight line, and therefore the bias magnetic field functions to hamper the external magnetic field applied to the magnetoresistance effect element. Thus, the magnetization of the free layer of the magnetoresistance effect element is suppressed, and the rotational angle of the magnetized vector is reduced. As a result, the characteristic of the resistance value of the magnetoresistance effect element to the external magnetic field is shifted by an amount equivalent to the bias magnetic field.

Abstract: A magnetic sensing device for use in a magnetic head includes a sensor stack structure having a sensing layer structure and an insulator structure formed adjacent the sensing layer structure. The insulator structure includes a plurality of oxidized metallic sublayers, a plurality of nitrided metallic sublayers, or a plurality of oxynitrided metallic sublayers. The insulator structure may be a capping layer structure of a giant magnetoresistance sensor or, alternatively, a tunnel barrier layer structure of a tunneling magnetoresistance sensor or a magnetic random access memory. Advantageously, each treated metallic sublayer is sufficiently uniformly treated so as to increase the magnetoresistive effect and improve soft magnetic properties of the magnetic sensing device.

Abstract: Current-perpendicular-to-planes (CPP) read sensors for magnetic heads having constrained current paths made of lithographically-defined conductive vias, and methods of making the same, are disclosed. In one illustrative example, a sensor stack structure which includes an electrically conductive spacer layer is formed over a first shield layer. An insulator layer is deposited over and adjacent the spacer layer, and a resist structure which exposes one or more portions of the insulator layer is formed over the insulator layer. With the resist structure in place, the exposed insulator layer portions are removed by etching to form one or more apertures through the insulator layer down to the spacer layer. Electrically conductive materials are subsequently deposited within the one or more apertures to form one or more lithographically-defined conductive vias of a current-constraining structure.

Abstract: A current-perpendicular-to-the-plane spin-valve (CPP-SV) magnetoresistive sensor has an improved antiparallel (AP) pinned structure, i.e., a structure with first (AP1) and second (AP2) ferromagnetic layers separated by a nonmagnetic antiparallel coupling (APC) layer with the magnetization directions of AP1 and AP2 oriented substantially antiparallel. The AP2 ferromagnetic layer (the layer in contact with the SV spacer layer) is an alloy of a ferromagnetic material and one or more additive elements of Cu, Au and Ag. The additive elements reduce the magnetic moment of the AP2 layer, which enables its thickness to be increased so that its magnetic moment remains close to the magnetic moment of the AP1 ferromagnetic layer. The thicker AP2 layer allows for more bulk spin-dependent scattering of electrons which increases the magnetoresistance of the sensor.

Abstract: A magnetic logic device can comprise a generally planar first substrate for an electrical circuit and a plurality of generally planar second substrates for a magnetic circuit, formed in a stacked arrangement over the first substrate. Each said second substrate can have formed thereon a magnetic circuit and each magnetic circuit can have a plurality of logic elements, a data writing element and a data reading element. The data writing element of each magnetic circuit can correspond in planar positioning to a respective magneto-electrical writing element of the first substrate and the data reading element of each magnetic circuit can correspond in planar positioning to a respective magneto-electrical reading element of the first substrate.

Abstract: At least one exemplary embodiment is directed to a recording apparatus, which includes a sensor having a plurality of light-emitting elements and a plurality of light-receiving elements. The sensor can be configured to perform a detection operation. The detection operation includes at least two of an operation for detecting an edge of a recording medium, an operation for detecting a distance between a recording head and the recording medium, an operation for detecting the density of an image formed on the recording medium, and an operation for detecting the kind of the recording medium.

Abstract: A magneto-resistance effect head is provided with a lower conductive layer which is provided with a recessed portion, and a vertical bias layer is provided in the recessed portion. A free layer is provided on the lower conductive layer. On the free layer, layered in the following order are the non-magnetic layer, the fixed layer, the fixing layer, and the upper layer so as not to be placed immediately above the vertical bias layer. The non-magnetic layer, the fixed layer, the fixing layer, and the upper layer are buried in an insulation layer. Furthermore, an upper conductive layer is provided on the upper layer and the insulation layer. In the direction of the magnetic field applied by the vertical bias layer, the free layer is made greater in length than the fixed layer and the free layer is disposed in proximity to the vertical bias layer with the distance between the fixed layer and the vertical bias layer remaining unchanged.

Abstract: A TMR sensor, a CPP GMR sensor and a CCP CPP GMR sensor all include a tri-layered free layer that is of the form CoFe/CoFeB/NiFe, where the atom percentage of Fe can vary between 5% and 90% and the atom percentage of B can vary between 5% and 30%. The sensors also include SyAP pinned layers which, in the case of the GMR sensors include at least one layer of CoFe laminated onto a thin layer of Cu. In the CCP CPP sensor, a layer of oxidized aluminum containing segregated particles of copper is formed between the spacer layer and the free layer. All three configurations exhibit extremely good values of coercivity, areal resistance, GMR ratio and magnetostriction.

Abstract: A reprogrammable switch includes a first phase-change element, a first reference element, and a second reference element. The switch includes a sense amplifier for outputting a first signal based on a comparison of a signal from the first phase-change element to a signal from the first reference element and for outputting a second signal based on a comparison of the signal from the first phase-change element to a signal from the second reference element.

Abstract: A tester for testing a circuit breaker includes a plurality of load elements each having a nominal fixed impedance and an electronic switch associated with each load element. The electronic switch, when turned on, electrically connects a corresponding load element in series with a circuit breaker load terminal and in parallel with none or with a number of other load elements. A controller turns on a number of the electronic switches selected to draw through a corresponding number of the load elements a test current selected as a function of a designated rated current for the circuit breaker and sufficient to trip open the same. A pulse width modulation circuit cooperates with the controller and with the electronic switches. The pulse width modulation circuit provides a constant magnitude of the test current to accommodate variations of the nominal fixed impedance or variations of the voltage of the load terminal.

Abstract: An electrostatic protection circuit including: a first power supply terminal 110; a second power supply terminal 112; an input-output terminal 111 for an external connection; a P-type MOSFET for a buffer 108 for pulling up input and output to a high-level potential; an N-type MOSFET for the buffer 107 for pulling down the input and output to a low-level potential; a rectifying element 109 connected between the first and second power supply terminals; a detector 101 for comparing the potential of the input-output terminal 111 to the potential of the first power supply terminal 110 to detect whether or not an electrostatic surge is flowing in; and controllers 105 and 106, wherein the controllers 105 and 106 control a gate potential of the N-type MOSFET 107 for the buffer when the detector 101 detects inflow of the electrostatic surge and turn off the N-type MOSFET 107 for the buffer.

Abstract: A wind farm with at least two wind turbines (1, 2, 3, 4) connected to a power grid is provided, said wind farm further comprising a control unit (5) connected to said at least two wind turbines (1, 2, 3, 4), and a sensor unit (6) connected to said power grid and said control unit (5), wherein said sensor unit (6) is adapted to measure the grid frequency of said power grid and to transmit said measured grid frequency to said control unit (5), and wherein said control unit (5) is adapted to control the output of real power of said wind farm according to said measured grid frequency.

Abstract: One embodiment provides a system for protecting at least one component in an integrated circuit (IC). The system includes a disconnect element that is electrically connected in series between an input terminal of the IC and the at least one component. The disconnect element is configured to have a first state to electrically connect the terminal to the at least one component and a second state corresponding to a high impedance condition that electrically isolates the terminal relative to the at least one component. A control system is configured to cause the disconnect element to transition from the first state to the second state in response to a rate of change of an input signal at the terminal exceeding a predetermined rate of change.

Abstract: The apparatus for polarity-inversion-protected supplying of an electronic component with an intermediate voltage from a supply voltage has a first transistor connected between a terminal for the supply voltage and the electric component, so that a path between a source terminal and a sink terminal is flown through by a supply current of the electric component, a potential-to-current conversion device formed so that it generates a rising response current at a rising voltage drop across the path between source terminal and sink terminal of the first transistor, and a coupler formed to provide a follow current proportional to the response current at an output of the coupler depending on the response current, wherein the output of the coupler is coupled to a control terminal of the first transistor, wherein the potential-to-current conversion means has a second transistor providing the response current, and wherein the potential-to-current conversion device further has a potential shifter.

Abstract: A device for arresting spark and ash issuing from, and precisely controlling the ventilation of and temperature inside, a heat source-containing vessel such as a cooking grill, stove, oven, cooker, fireplace, heater, or firebox. The device comprises a spark arrestor assembly including a base plate, a cover plate, and a spark arrestor. The base plate defines an opening. The cover plate and spark arrestor are slidably mated in two channels formed in the base plate around the opening. The cover plate and spark arrestor may be adjusted to extend across or only partway across the opening as selected by a user of the device. Tabs are provided on the cover plate and spark arrestor for easy adjustment thereof. Tabs in the base plate are positioned to define a range of slidable motion of the cover plate and spark arrestor.

Abstract: An outdoor lightning protection power supply system comprises an AC distribution plant, an AC/DC rectifier and a backup battery, wherein a lightning protection system, a main earthing bar as well as a filter for absorbing AC load conducted interference is provided at the input terminal of the AC distribution plant, and there is provided an electrical box for accommodating them. Take the system lightning protection, the system earthing and the system filtering, as well as the system power supply into consolidated consideration, the present invention not only has the advantage of small volume and integration convenience, but also improves the reliability of the power supply system. Since the integration of the system is significantly improved, the number of the lightning protection module can be reduced, whereby reducing the system cost and saving the available space of the outdoor communication cabinet.

Abstract: A portable ionizer is arranged for generating ionized air in an area of a user's fingers. The portable ionizer includes a battery-powered oscillator coupled via a high voltage conversion circuit to a positive electrode and a negative electrode for generating positive and negative ions. A fan positioned near the positive and negative electrodes is arranged providing a positive and negative ion flow path to the area of the user's fingers.

Abstract: A clamping ring configured to be coupled to a chamber structure of a plasma processing chamber is disclosed. The clamping ring has a plurality of holes for accommodating a plurality of fasteners. The clamping ring includes a plurality of flanges disposed around an outer periphery of the clamping ring, adjacent flanges of the plurality of flanges being disposed such that a hole of the plurality of holes that is disposed in between the adjacent flanges is about equidistant from the adjacent flanges. The plurality of flanges are configured to mate with the chamber structure. The clamping ring and the flanges are dimensioned such that when the plurality of flanges mate with the chamber structure, recesses between adjacent ones of the plurality of flanges form gaps between the clamping ring and the chamber structure.

Abstract: An electrostatic chuck has an electrode embedded in a dielectric which is mounted on a pedestal. The dielectric has a contact surface with an average surface roughness of less than about 0.5 ?m, a surface peak waviness of less than about 0.12 ?m, and a surface peak waviness material ratio of greater than about 20%. The surface texture can be formed by lapping the dielectric surface with a slurry of abrasive particles.

Abstract: A capacitor circuit with surge protection that is selectively connected between a voltage source and a device comprises a first capacitance element has one end that communicates with a first terminal of the voltage source. A first transistor has a first terminal that communicates with an opposite end of the first capacitance element and a second terminal that communicates with a second terminal of the voltage source. A control terminal of the first transistor communicates with a capacitor enable signal that provides a controlled turn-on to limit current surge and turns off the first transistor when voltage surge is detected.

Abstract: The invention relates to a monolithic arrangement, especially an integrated circuit (IC), with a floating electrode (FE), at least one conductor track (ML) for connecting the floating electrode (FE) to a system component (MS) inside the monolithic arrangement, a plurality of other conductor tracks (L) at least temporarily conducting potential in order to carry signals or currents between components (MS, GND), structures and/or contacts (K), and an insulator (IS) for electrical insulating of the conductor track (ML) and the other conductor tracks (L) from each other, wherein one layout of the conductor track (ML) and of the other conductor tracks (L) is such that the path of the conductor track (ML) does not cross the path of any of the conductor tracks (L). It is advisable to maintain a minimum distance between the measuring conductor track and the other conductor tracks.

Abstract: A digital variable capacitor package is provided as having a ground plane disposed on predetermined portion of the top surface of a substrate. An elongated signal electrode may also be disposed on the substrate and including a first end defining an input and a second end extending to a substantially central region of the top surface of the substrate. This elongated signal electrode is disposed to be electrically isolated from the ground plane. A number of elongated cantilevers are disposed on the substrate and each include first ends coupled to the second end of the signal electrode and each further include second ends suspended over different predetermined portions of the ground plane. In operation, one or more of the cantilevers may be actuated to move portion thereof into close proximity to the ground plane for providing one or more discrete capacitance values.

Abstract: A high-voltage feed-through capacitor includes: a capacitor element; a grounding metal fitting; an insulating resin; two through conductors; an insulating cover; and an insulating tube. The capacitor element has two separate electrodes on one side and one common electrode on the other side and is mounted on one side of the grounding metal fitting with the common electrode being connected to the same side of the grounding metal fitting. The insulating resin fills a space inside the capacitor element. Each through conductor has a rod-like conductor portion passing through the grounding metal fitting and the capacitor element and connected to the separate electrode. At least a portion of the insulating tube is attached to the rod-like conductor portion within the capacitor element. The insulating cover is attached to the rod-like conductor portion to have one end thereof in contact with one end of the insulating tube.

Abstract: A capacitor comprising: a plurality of laminated dielectric layers; a plurality of inner electrode layers each disposed between mutually adjacent ones of the dielectric layers; and dummy electrode layers respectively disposed between the dielectric layers, disposed on sides closer to outer peripheral sides of the dielectric layers than to the inner electrode layers and disposed apart from the inner electrode layers.

Abstract: A multilayer capacitor containing a multilayer body having dielectric layers laminated therein, and multiple first terminal electrodes and multiple second terminal electrodes which are arranged on outer surfaces of the multilayer body. The first and second terminal electrodes are electrically insulated from each other on the multilayer body. The multilayer body also includes multiple first and second inner electrodes having respective lead conductors, a first bridge conductor, and a second conductor. The first inner electrodes are electrically connected to respective first terminal electrodes through their respective lead conductors. The second inner electrodes oppose the first inner electrodes across the dielectric layers, and are electrically connected to respective second terminal electrodes through their respective lead conductors. The first bridge conductor is electrically insulated from the second inner electrodes while electrically connecting the first terminal electrodes.

Abstract: The system of an energy conditioner comprising: a conductive shield structure comprising a first conductive shield layer, a second conductive shield layer, and a third conductive shield layer; wherein said first conductive shield layer is above said second conductive shield layer, and said second conductive shield layer is above said third conductive shield layer; wherein said first conductive shield layer, said second conductive shield layer, and said third conductive shield layer are conductively connected to one another; a first pair of conductive non-shield layers comprising a first pair first layer and a first pair second layer; and a second pair of conductive non-shield layers comprising a second pair first layer and a second pair second layer

Abstract: An aluminum solid electrolytic capacitor (conductive polymer type solid electrolytic capacitor) has an anodic oxide film layer, a conductive polymer layer, and a polystyrene sulfonate layer interposed between the anodic oxide film layer and the conductive polymer layer. A transmission line element has a cathode portion formed on a central portion of an aluminum substrate in an aluminum solid electrolytic capacitor. The transmission line element also has a pair of anode terminal areas located at both sides of the cathode portion on the aluminum substrate and is configured to supply a current between the pair of anode terminal areas.

Abstract: A capacitor element comprises an anode, a dielectric layer formed on the anode, an electrolyte layer formed on the dielectric layer, and a cathode formed on the electrolyte layer. On the cathode formed by the surface of the capacitor element, a conductive adhesive layer containing silver particles and an organic silane layer made from aminopropyltriethoxysilane (APTES) are sequentially formed, and the cathode and a cathode terminal are connected through the conductive adhesive layer and the organic silane layer. In addition, an anode terminal is connected to an anode lead which exposed from the anode by welding.

Abstract: Various embodiments of an electronic system and method for removing a power module from an electronic system are provided. The electronic system includes a power module that supplies power to a load and is movable along an axis from an enabling position to a disconnected position. The electronic system also includes a release control that restricts the movement of the power module along the axis when the power module is moved beyond a disabling position located between the enabling position and the disconnected position.

Abstract: A mobile power source for use with a power cable having a connector. The mobile power source includes a housing, a generator, an enclosure, at least one power terminal, a door, and at least one fastening device. The generator is mounted in the housing to generate electrical power. The at least one power terminal is mounted within the enclosure, electrically connected to the generator, and configured to receive power generated by the generator. The door is positioned over the enclosure so as to cover the at least one power terminal, and limit access to the at least one power terminal. The at least one fastening device is adjacent to the door, and configured to secure the cable.

Abstract: The present invention relates to a plug-in power supply for supplying a consumer with a low voltage, and in particular to a plug-in power supply wherein the mains plug unit is exchangeable in the form of a conversion plug system. The plug-in power supply comprises a housing having arranged therein a voltage transformer module for converting a mains voltage into the required low voltage, and an exchangeable mains plug unit with at least two mains plug pins.

Abstract: An electronic apparatus includes: an enclosure having an opening; and an assembly fixed inside the enclosure and extending through the opening to the outside of the enclosure. The assembly includes a first arm and a second arm, the first arm entering the inside of the enclosure through the opening and extending along an inner wall of the enclosure in a first direction, the second arm entering the inside of the enclosure through the opening and extending along an inner wall of the enclosure in a second direction opposite to the first direction. The first arm has a member-side engagement section which is engaged with the enclosure, and the second arm has a member-side fixing section which is fixed to the enclosure. The enclosure has an enclosure-side engagement section with which the member-side engagement section is engaged and an enclosure-side fixing section to which the member-side fixing section is fixed.

Abstract: A keyboard with a recharge function for a computer system having a rechargeable wireless peripheral is described. The keyboard includes a charger and a charging dock. The charger is disposed inside the keyboard and charges the rechargeable wireless peripheral with power from the keyboard. The charging dock is a channel with an opening on a sidewall of the keyboard and can store the rechargeable wireless peripheral therein so as to electrically couple the rechargeable wireless peripheral to the charger.

Abstract: A keyboard for storing a remote controller, including a pusher that is slidable within a space underneath the keyboard, an elastomer disposed within the space for pressing against one end of the pusher, a controller shaped to match contours of the space and having a tongue provided thereon, and a hook disposed within the space for detachably connecting to the tongue, whereby the hook is selectively connected to or separated from the tongue via the elastomer and the pusher when the controller is completely inserted into or ejected out of the space.

Abstract: There is provided a stand for a display device. The stand includes a base unit supporting the display device. A main link unit is hinged between the display device and the base unit. A pair of auxiliary links is eccentrically connected to hinges of the main link unit at different positions. A torsion spring includes at least one end connected to the pair of auxiliary links for applying an elastic force to the pair of auxiliary links. The main link unit has a smaller thickness, and thus the size of the stand can be reduced. The stand allows for convenient and smooth operation of the display device. Further, since the spring has a simple structure, the stand can be manufactured through a simple process with less cost. Furthermore, the outer appearance of the stand can be simple.

Abstract: A display device includes a housing holding a display panel having a display screen which is of an elongate rectangular shape as viewed in front elevation, and a stand, the housing being angularly movably supported on the stand for angular movement about a support shaft extending perpendicular to the display screen. The support shaft is positioned on a line extending from a center of the display screen which is positioned in a landscape display mode, obliquely upwardly at an angle of substantially 45°.

Abstract: A display apparatus includes a display to display an image thereon and a pair of bases which are coupled to the display to rotate around a vertical axis with respect to the display.

Abstract: The present invention provides an electronic apparatus having a structure suitable for installing different functions each requiring a hole in an enclosure depending on grade or destination by mounting the same module. The apparatus includes: an enclosure having a hole; and a board having mounted thereon a first component and a second component which differently interact with the outside via the hole, either one of the first and second components is disposed at such a position that it faces the outside through the hole according to an attachment direction of the board.

Abstract: The present invention provides an electronic apparatus which includes: a card slot into which a portable storage medium such as a card is removably inserted and which accesses the inserted portable storage medium; and an ejection mechanism section which is slidably operated to move the storage medium inserted in the card slot in an eject direction. The ejection mechanism section includes: a sliding member which is in an L-shape in cross section and affects the slot by sliding in a direction in which a ridge of the L shape extends; and an operation member which transmits a sliding operation made thereon to the sliding member in response to the sliding operation, thereby causing the sliding member to slide. This makes it possible to eject a card inserted into the slot while ensuring the strength and avoiding increase in size of components.

Abstract: The present invention provides an electronic apparatus in which different components sharing the same hole can be installed. The apparatus includes: an enclosure having a hole; and one type of a board selected from plural types of boards each having mounted thereon or connected thereto either one of plural types of components which interact with the outside via the hole in different manners. The component mounted on or connected to the one type of the board is disposed at such a position in the enclosure that the mounted or connected component faces the outside through the hole.

Abstract: The present invention provides an electronic apparatus typified by a personal computer for example. The electronic apparatus has: a main unit; and an openable and closable display unit that is attached to the main unit. The main unit has a battery-attachment section to which a detachable battery unit containing a battery for supplying power to the electronic unit is to be attached. The main unit also has projections that are not covered by the display unit when the display unit is closed and are formed at both ends of the attachment section. The projections each contain a speaker.

Abstract: An electronic device having a support, a screen and a movable input device. The support has a perimeter. The support carries the screen and at least part of the movable keyboard within the perimeter of the support. This electronic device provides enhanced convenience and operational functionality.