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Pointing Stick
A pointing stick (or trackpoint, also referred to generically as a nub, nipple or clitmouse) is a small analog stick used as a pointing device typically mounted centrally in a computer keyboard. Like other pointing devices such as mice, touchpads or trackballs, operating system software translates manipulation of the device into movements of the pointer on the computer screen. Unlike other pointing devices, it reacts to sustained force or strain rather than to gross movement, so it is called an "isometric" pointing device. IBM introduced it commercially in 1992 on the ThinkPad 700 series under the name "TrackPoint", and patented an improved version of it in 1997 (but the patent expired in 2017). It has been used for business laptops, such as Acer's TravelMate, Dell's Latitude, HP's EliteBook and Lenovo's ThinkPad. The pointing stick senses applied force by using two pairs of resistive strain gauges. A pointing stick can be used by pushing with the fingers in the general ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mouse Pointing Stick
A mouse (: mice) is a small rodent. Characteristically, mice are known to have a pointed snout, small rounded ears, a body-length scaly tail, and a high breeding rate. The best known mouse species is the common house mouse (''Mus musculus''). Mice are also popular as pets. In some places, certain kinds of Apodemus, field mice are locally common. They are known to invade homes for food and shelter. Mice are typically distinguished from rats by their size. Generally, when a muroid rodent is discovered, its common name includes the term ''mouse'' if it is smaller, or ''rat'' if it is larger. The common terms ''rat'' and ''mouse'' are not Taxonomy (biology), taxonomically specific. Typical mice are classified in the genus ''Mus (genus), Mus'', but the term ''mouse'' is not confined to members of ''Mus'' and can also apply to species from other genera such as the deer mouse, deer mouse (''Peromyscus''). Fancy mouse, Domestic mice sold as pets often differ substantially in size f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HP Inc
HP Inc. is an American Multinational corporation, multinational information technology, information technology company with its headquarters in Palo Alto, California, that develops personal computers (PCs), printer (computing), printers and related supplies, as well as 3D printing services. It is the Market share of personal computer vendors, world's second-largest personal computer vendor by unit sales after Lenovo and ahead of Dell as of 2024. HP Inc. was founded in 2015 as a corporate spin-off, spin-off of the original Hewlett-Packard Company after the company's enterprise product and business services divisions were split into a new publicly traded company, Hewlett Packard Enterprise. HP Inc. retained the personal computer and printer services divisions from its predecessor, serving as the legal successor of the original company that was originally founded in 1939. HP is listed on the New York Stock Exchange and is a constituent of the S&P 500 Index. In the 2023 Fortune 500 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pointing Stick Toshiba
Pointing is a gesture specifying a direction from a person's body, usually indicating a location, person, event, thing or idea. It typically is formed by extending the arm, hand, and index finger, although it may be functionally similar to other hand gestures. Types of pointing may be subdivided according to the intention of the person, as well as by the linguistic function it serves. Pointing typically develops within the first two years of life in humans, and plays an important role in language development and reading in children. It is central to the use of sign language, with a large number of signs being some variation on pointing. The nature of pointing may differ for children who have autism or who are deaf, and may also vary by gender. It is typically not observed in children who are blind from birth. Pointing may vary substantially across cultures, with some having many distinct types of pointing, both with regard to the physical gestures employed and their interpret ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scroll Wheel
A scroll wheel is a wheel used for scrolling. The term usually refers to such wheels found on computer mouse, computer mice (where they can also be called a mouse wheel). It is often made of hard plastic with a rubbery surface, centred around an internal rotary encoder. It is usually located between the left and right mouse buttons and is positioned perpendicular to the mouse surface. Sometimes the wheel can be pressed left and right, which is actually just two additional macros buttons. Functionality The scroll wheel is placed horizontally between the mouse buttons and commonly uses vertical scrolling, wherein rolling the wheel from the bottom side to the top is known as scrolling "upward" or "forward", while the reverse, i.e. rolling the wheel from the top side to the bottom, is known as scrolling "downward" or "backward". In a graphical user interface, the "upward" motion moves contents of the window downward (and the scrollbar thumb, if present, upward), and vice versa. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
D-pad
The D-pad (short for directional pad) is a compact input method developed for video games, designed to translate thumb movement into directional control through a flat, cross-shaped surface that rests on four internal switches. Each switch corresponds to a cardinal direction (up, down, left, and right), while diagonal inputs engage two switches simultaneously, enabling eight-directional control at 45-degree intervals. Beneath the center, a pivot mechanism tilts the pad, preventing all four switches from being pressed at once and enhancing tactile feedback. When introduced, the D-pad offered a space-saving, precise input method at a time when bulky joysticks dominated the market. Although analog sticks have largely superseded D-pads as the primary directional input in modern gamepads, the D-pad’s compact, intuitive, and versatile design has led to its adoption in a wide range of devices, including remote controls, calculators, personal digital assistant, PDAs, mobile phones, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zenith Data Systems
Zenith Data Systems Corporation (ZDS) was an American computer systems manufacturing company active from 1979 to 1996. It was originally a division of the Zenith Radio Company (later Zenith Electronics), after they had purchased the Heath Company and, by extension, their Heathkit line of electronic kits and kit microcomputers, from Schlumberger in October 1979. ZDS originally operated from Heath's own headquarters in St. Joseph, Michigan. By the time Zenith acquired Heathkit, their H8 kit computer already had an installed fanbase of scientific engineers and computing enthusiasts. ZDS's first offerings were merely preassembled versions of existing Heathkit computers, but within a few years, the company began selling systems of their own design, including the Z-100, which was a hybrid 8085- and 8088-based computer capable of running both CP/M and MS-DOS. ZDS largely avoided the retail consumer market, instead focusing on selling directly to businesses, educational instituti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sony Vaio UX Micro PC
The Sony Vaio UX Micro PC is an Ultra-Mobile Portable Computer ( UMPC) first marketed in 2006. It weighs around 490–544 g (1.20–1.27 lb), and has a slide-out QWERTY keyboard, touchscreen, Intel Core 2 Solo processor, Bluetooth, Wi-Fi, and WWAN. Though not officially stated as such, and even to a point implied by Sony that the UX is a move in a new direction and not a specific continuation of such, the Sony UX is speculated by some to be the newest model in the popular Sony U-series. NOTE : Japanese models include 533 MHz memory and so do the minority markets ( Europe, Australia etc. ) models. The US ones do not have 533 MHz but slower 400 MHz. All models share these features: * 4.5" XBrite TFT LCD touchscreen with 1024x600 display resolution. * Intel Graphics Media Accelerator 950 Graphics Card (128 MB (128 MB) Shared RAM) - some have 256 MB * Memory Stick Duo Slot * Built-in Wi-Fi 802.11b/g and Bluetooth * Fingerprint reader * Front and back digita ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toshiba Libretto
The Libretto (Italian for "booklet") is a line of subnotebook computers that was designed and produced by Toshiba. The line was distinguished by its combination of functionality and small size, squeezing a full Windows x86 PC into a device the size of a paperback book. The first Libretto model, the ''Libretto 20'', was released on April 17, 1996 (in Japan only), with a volume of and weighing just , making it by far, the world's smallest commercially available Windows PC at the time, and a trend the Libretto range continued for many years. The original Libretto line was discontinued in Europe and the U.S. in 1999, but the production continued in Japan with the SS, FF and then the L series until 2002. The first L series Libretto, larger than the previous range, was released on 18 May 2001 and the last on 24 April 2002. Production of all Librettos ceased from 2002 until the release of the Libretto U100 in 2005. It was a further five years before the Libretto returned again in 201 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Bar
The space bar is on the bottom center of the keyboard. The space bar, spacebar, blank, or space key is a key on a typewriter or alphanumeric keyboard in the form of a horizontal bar in the lowermost row, significantly wider than all other keys. Its main purpose is to conveniently enter a space, e.g., between words during typing. History Originally, (on early writers dating back to the late 19th century) the "bar" was literally a metal bar running across the full width of the keyboard (or even wider, and even surrounding it) that triggered the carriage advance without also firing any of the typebars towards the platen. Later examples gradually shrank and developed into their current more ergonomic form as a wide, centrally located but otherwise apparently normal "key", as typewriter (and computer) keyboards began to incorporate additional function keys and were more deliberately "styled". Although it varies by keyboard type, the space bar usually lies between the Alt key (or Comm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
QWERTY
QWERTY ( ) is a keyboard layout for Latin-script alphabets. The name comes from the order of the first six Computer keyboard keys#Types, keys on the top letter row of the keyboard: . The QWERTY design is based on a layout included in the Sholes and Glidden typewriter sold via E. Remington and Sons from 1874. QWERTY became popular with the success of the Remington No. 2 of 1878 and remains in ubiquitous use. History The QWERTY layout was devised and created in the early 1870s by Christopher Latham Sholes, a newspaper editor and printer who lived in Kenosha, Wisconsin. In October 1867, Sholes filed a patent application for his early writing machine he developed with the assistance of his friends Carlos Glidden and Samuel W. Soule, Samuel W. Soulé. The first model constructed by Sholes used a piano-like keyboard with two rows of characters arranged alphabetically as shown below: - 3 5 7 9 N O P Q R S T U V W X Y Z 2 4 6 8 . A B C D E F G H I J K L M Sholes struggled for th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strain Gauge
A strain gauge (also spelled strain gage) is a device used to measure Deformation (mechanics)#Strain, strain on an object. Invented by Edward E. Simmons and Arthur C. Ruge in 1938, the most common type of strain gauge consists of an Electrical insulation, insulating flexible backing which supports a metallic foil pattern. The gauge is attached to the object by a suitable adhesive, such as cyanoacrylate. As the object is deformed, the foil is deformed, causing its electrical resistance to change. This resistance change, usually measured using a Wheatstone bridge, is related to the strain by the quantity known as the gauge factor. History Edward E. Simmons and Professor Arthur C. Ruge independently invented the strain gauge. Simmons was involved in a research project by Dätwyler and Clark at Caltech between 1936 and 1938. They researched the stress-strain behavior of metals under shock loads. Simmons came up with an original way to measure the force introduced into the sample b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Resistance
The electrical resistance of an object is a measure of its opposition to the flow of electric current. Its reciprocal quantity is , measuring the ease with which an electric current passes. Electrical resistance shares some conceptual parallels with mechanical friction. The SI unit of electrical resistance is the ohm (), while electrical conductance is measured in siemens (S) (formerly called the 'mho' and then represented by ). The resistance of an object depends in large part on the material it is made of. Objects made of electrical insulators like rubber tend to have very high resistance and low conductance, while objects made of electrical conductors like metals tend to have very low resistance and high conductance. This relationship is quantified by resistivity or conductivity. The nature of a material is not the only factor in resistance and conductance, however; it also depends on the size and shape of an object because these properties are extensive rather tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
