|
Ruputer
The Ruputer is a wristwatch computer developed in 1998 by Seiko Instruments, a subsidiary of the Seiko Group. It was introduced on 10 June 1998. In the US, it was later marketed as the onHand PC by Matsucom. The Ruputer has a 16-bit, 3.6 MHz central processing unit, processor and 2 MB of non-volatile memory, non-volatile storage memory and 128 KB of Random access memory, RAM. Its display is a 102×64 pixel monochrome liquid crystal display, LCD. Its main forms of input are a tiny 8-direction joystick and 6 function buttons. It also has a Serial communications, serial interface and an Infrared, IR port for communicating with other devices. The main body of the device (separate from the strap) is roughly 2 inches wide, 1 1/8 inches across, and 5/8 of an inch deep. It is powered by two high-powered watch batteries, which supply the device enough energy for approximately 30 hours of use. Under normal conditions, the watch goes into standby mode down when not in use in o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wristwatch Computer
A smartwatch is a portable wearable computer that resembles a wristwatch. Most modern smartwatches are operated via a touchscreen, and rely on mobile apps that run on a connected device (such as a smartphone) in order to provide core functions. Early smartwatches were capable of performing basic functions like calculating, displaying digital time, translating text, and playing games. More recent models often offer features comparable to smartphones, including apps, a mobile operating system, Bluetooth and Wi-Fi connectivity, and the ability to function as portable media players or FM radios. Some high-end models have cellular capabilities, allowing users to make and receive phone calls. While internal hardware varies, most smartwatches have a backlit LCD or OLED electronic visual display and are powered by a rechargeable lithium-ion battery. They may also incorporate GPS receivers, digital cameras, and microSD card readers, as well as various internal and environmental sensors ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Processing Unit
A central processing unit (CPU), also called a central processor, main processor, or just processor, is the primary Processor (computing), processor in a given computer. Its electronic circuitry executes Instruction (computing), instructions of a computer program, such as arithmetic, logic, controlling, and input/output (I/O) operations. This role contrasts with that of external components, such as main memory and I/O circuitry, and specialized coprocessors such as graphics processing units (GPUs). The form, CPU design, design, and implementation of CPUs have changed over time, but their fundamental operation remains almost unchanged. Principal components of a CPU include the arithmetic–logic unit (ALU) that performs arithmetic operation, arithmetic and Bitwise operation, logic operations, processor registers that supply operands to the ALU and store the results of ALU operations, and a control unit that orchestrates the #Fetch, fetching (from memory), #Decode, decoding and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Personal Computer
A personal computer, commonly referred to as PC or computer, is a computer designed for individual use. It is typically used for tasks such as Word processor, word processing, web browser, internet browsing, email, multimedia playback, and PC game, gaming. Personal computers are intended to be operated directly by an end user, rather than by a computer expert or technician. Unlike large, costly minicomputers and mainframes, time-sharing by many people at the same time is not used with personal computers. The term home computer has also been used, primarily in the late 1970s and 1980s. The advent of personal computers and the concurrent Digital Revolution have significantly affected the lives of people. Institutional or corporate computer owners in the 1960s had to write their own programs to do any useful work with computers. While personal computer users may develop their applications, usually these systems run commercial software, free-of-charge software ("freeware"), which i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Personal Digital Assistants
A personal digital assistant (PDA) is a multi-purpose mobile device which functions as a personal information manager. Following a boom in the 1990s and 2000s, PDAs were mostly displaced by the widespread adoption of more highly capable smartphones, in particular those based on iOS and Android in the late 2000s, and thus saw a rapid decline. A PDA has an electronic visual display. Most models also have audio capabilities, allowing usage as a portable media player, and also enabling many of them to be used as telephones. By the early 2000s, nearly all PDA models had the ability to access the Internet, intranets or extranets via Wi-Fi or wireless WANs, and since then generally included a web browser. Sometimes, instead of buttons, later PDAs employ touchscreen technology. History The first PDA, the Organiser, was released in 1984 by Psion, followed by Psion's Series 3, in 1991. The latter began to resemble the more familiar PDA style, including a full keyboard. The te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virtual Keyboard
A virtual keyboard is a software component that allows the Input device, input of characters without the need for physical keys. Interaction with a virtual Computer keyboard, keyboard happens mostly via a touchscreen interface, but can also take place in a different form when in Virtual reality, virtual or augmented reality. Types On a desktop computer, a virtual keyboard might provide an alternative input mechanism for users with disability, disabilities who cannot use a conventional keyboard, for multilingualism, multi-lingual users who switch frequently between different character sets or alphabets, which may be confusing over time, or for users who are lacking a traditional keyboard. Virtual keyboards may utilize the following: * Virtual keyboards with touchscreen layouts or sensors * Character variants, punctuation, and other special characters accessible through a menu, key/mouse combinations, or double/triple/long presses on sensors * Number pad feature to facilitate ty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palm OS
Palm OS (also known as Garnet OS) is a discontinued mobile operating system initially developed by Palm, Inc., for personal digital assistants (PDAs) in 1996. Palm OS was designed for ease of use with a touchscreen-based graphical user interface. It was provided with a suite of basic applications for Personal information manager, personal information management. Later versions of the OS were extended to support smartphones. The software appeared on the company's line of Palm (PDA), Palm devices while several other licensees List of Palm OS devices, have manufactured devices powered by Palm OS. Following Palm's purchase of the Palm trademark, the operating system was renamed ''Garnet OS''. In 2007, Access Co., ACCESS introduced the successor to Garnet OS, called Access Linux Platform; additionally, in 2009, the main licensee of Palm OS, Palm, Inc., switched from Palm OS to webOS for their forthcoming devices. Creator and ownership Palm OS was originally developed under the directi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Personal Digital Assistant
A personal digital assistant (PDA) is a multi-purpose mobile device which functions as a personal information manager. Following a boom in the 1990s and 2000s, PDAs were mostly displaced by the widespread adoption of more highly capable smartphones, in particular those based on iOS and Android (operating system), Android in the late 2000s, and thus saw a rapid decline. A PDA has an electronic visual display. Most models also have audio capabilities, allowing usage as a portable media player, and also enabling many of them to be used as telephones. By the early 2000s, nearly all PDA models had the ability to access the Internet, intranets or extranets via Wi-Fi or wireless WANs, and since then generally included a web browser. Sometimes, instead of buttons, later PDAs employ touchscreen technology. History The first PDA, the Psion Organiser, Organiser, was released in 1984 by Psion (company), Psion, followed by Psion Series 3, Psion's Series 3, in 1991. The latter began to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossil Wrist PDA
The Fossil Wrist PDA is a smartwatch that runs Palm OS. The newer incarnation, which does not include Palm OS, is called the Fossil WristNet watch. Product history The development of the Fossil Wrist PDA began in 1999 when engineer Donald Brewer and Fossil Product Manager Jeff Bruneau licensed a read-only version of the Palm OS from Palm Source and tried to make it work in a watch. For the first year of development, Brewer struggled to make the watch small enough to be wearable. The initial designs looked like "a cell phone glued on one's wrist" and in board meetings the term "boat anchor" was used. He began to talk with Microsoft engineers, who were looking for a wrist-top platform as well and were busy developing Smart Personal Objects Technology (SPOT watches). Once the size was decreased, the next major hurdle was making the screen. The smallest screens available at the time were cell phone screens that had 90 by 126 pixels. Palm OS, however, was written for a touch-sensitive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arcade Game
An arcade game or coin-op game is a coin-operated entertainment machine typically installed in public businesses such as restaurants, bars and amusement arcades. Most arcade games are presented as primarily game of skill, games of skill and include arcade video games, pinball machines, electro-mechanical games, redemption games or merchandisers. Types Broadly, arcade games are nearly always considered Game of skill, games of skill, with only some elements of game of chance, games of chance. Games that are solely games of chance, like slot machines and pachinko, often are categorized legally as gambling devices and, due to restrictions, may not be made available to minors or without appropriate oversight in many jurisdictions. Arcade video games Arcade video games were first introduced in the early 1970s, with ''Pong'' as the first commercially successful game. Arcade video games use Electronics, electronic or computerized circuitry to take input from the player and translate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
STN Display
An STN (super-twisted nematic) display is a type of liquid-crystal display (LCD). An LCD is a flat-panel display that uses liquid crystals to change its properties when exposed to an electric field, which can be used to create images. This change is called the Twisted nematic field effect, twisted nematic (TN) field effect. Earlier TN displays twisted the liquid crystal molecules at a 90-degree angle. STN displays improved on that by twisting the liquid crystal molecules at a much greater angle, typically between 180 and 270 degrees. This allows for a sharper image and passive matrix addressing, a simpler way to control the pixels in an LCD. While STN displays were once common in various electronic devices, they have been largely replaced by TFT LCD, TFT (thin-film transistor) displays. Development In 1982, C. M. Waters and E. P. Raynes patented STN displays, and by 1984 researchers at Brown, Boveri & Cie, Brown Boveri (later ABB) built the first prototype STN matrix display, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
