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PenPad
The term PenPad was used as a product name for a number of Pen computing products by different companies in the 1980s and 1990s. The earliest was the ''Penpad'' series of products by Pencept, such as the PenPad M200 handwriting terminal, and the PenPad M320 handwriting/gesture recognition tablet for MS-DOS and other personal computers. Other vendors using the term Penpad in product names include Amstrad and Toshiba. The Amstrad PenPad was an early portable personal digital assistant with handwriting pen input, and a competitor to the Apple Newton. It was an attempt by Amstrad, a UK electronics firm with a history of successful involvement in personal computing, to corner the handheld market in the UK and Europe. PDA600 The Amstrad PenPad, also known by the ''PDA600'' model reference, was commissioned in 1993 and launched in March of that year. The project manager, Cliff Lawson, had helped developed Amstrad's previous computing products. The Eden Group delivered the underlyin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pencept
Pencept, Inc. was one of a small number of pioneering companies in the 1980s developing and marketing technology known as pen computing. Pencept was noted primarily for the robustness (for the time) of the handwriting and gesture recognition algorithms, and for an emphasis on developing novel user interface approaches for employing gesture recognition and handwriting recognition that would work with existing applications hardware and software. Pencept employed a proprietary technology for on-line character recognition, based on a functional attribute model of human reading. Thus, unlike many other recognition algorithms employed for handwriting recognition, the recognition was generally user-independent and did not involve training to a user's particular writing style. Early products included the PenPad 200 handwriting-only computer terminal that was a direct replacement for the VT-100 and other standard ANSI 3.62 terminals, but with a digitizing tablet and electronic pen and n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pen Computing
Pen computing refers to any computer user-interface using a pen or Stylus (computing), stylus and tablet, over input devices such as a keyboard or a mouse. Pen computing is also used to refer to the usage of mobile devices such as tablet computers, Personal digital assistant, PDAs and GPS receivers. The term has been used to refer to the usage of any product allowing for mobile communication. An indication of such a device is a Stylus (computing), stylus or digital pen, generally used to press upon a graphics tablet or touchscreen, as opposed to using a more traditional interface such as a Computer keyboard, keyboard, keypad, Mouse (computing), mouse or touchpad. Historically, pen computing (defined as a computer system employing a user-interface using a pointing device plus handwriting recognition as the primary means for interactive user input) predates the use of a mouse and graphical display by at least two decades, starting with the Stylator and RAND Tablet systems of the 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amstrad
Amstrad was a British electronics company, founded in 1968 by Alan Sugar at the age of 21. The name is a contraction of Alan Michael Sugar Trading. It was first listed on the London Stock Exchange in April 1980. During the late 1980s, Amstrad had a substantial share of the PC market in the UK. Amstrad was once a FTSE 100 Index constituent, but since 2007 has been wholly owned by Sky UK. , Amstrad's main business was manufacturing Sky UK interactive boxes. In 2010, Sky integrated Amstrad's satellite division as part of Sky so they could make their own set-top boxes in-house. The company had offices in Kings Road, Brentwood, Essex. History 1960s and 1970s Amstrad (also known as AMSTrad) was founded in 1968 by Alan Sugar at the age of 21, the name of the original company being AMS Trading (Amstrad) Limited, derived from its founder's initials (Alan Michael Sugar). Amstrad entered the market in the field of consumer electronics. During the 1970s they were at the forefron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amstrad PenPad PDA600
Amstrad was a British electronics company, founded in 1968 by Alan Sugar at the age of 21. The name is a contraction of Alan Michael Sugar Trading. It was first listed on the London Stock Exchange in April 1980. During the late 1980s, Amstrad had a substantial share of the PC market in the UK. Amstrad was once a FTSE 100 Index constituent, but since 2007 has been wholly owned by Sky UK. , Amstrad's main business was manufacturing Sky UK interactive boxes. In 2010, Sky integrated Amstrad's satellite division as part of Sky so they could make their own set-top boxes in-house. The company had offices in Kings Road, Brentwood, Essex. History 1960s and 1970s Amstrad (also known as AMSTrad) was founded in 1968 by Alan Sugar at the age of 21, the name of the original company being AMS Trading (Amstrad) Limited, derived from its founder's initials (Alan Michael Sugar). Amstrad entered the market in the field of consumer electronics. During the 1970s they were at the forefro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tablet Computer
A tablet computer, commonly shortened to tablet, is a mobile device, typically with a mobile operating system and touchscreen display processing circuitry, and a rechargeable battery in a single, thin and flat package. Tablets, being computers, do what other personal computers do, but lack some input/output (I/O) abilities that others have. Modern tablets largely resemble modern smartphones, the only differences being that tablets are relatively larger than smartphones, with screens or larger, measured diagonally, and may not support access to a cellular network. Unlike laptops which have traditionally run off operating systems usually designed for desktops, tablets usually run mobile operating systems, alongside smartphones. The touchscreen display is operated by gestures executed by finger or digital pen (stylus), instead of the mouse, touchpad, and keyboard of larger computers. Portable computers can be classified according to the presence and appearance of physica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zilog Z180
The Zilog Z180 eight-bit processor is a successor of the Z80 CPU. It is compatible with the large base of software written for the Z80. The Z180 family adds higher performance and integrated peripheral functions like clock generator, 16-bit counters/timers, interrupt controller, wait-state generators, serial ports and a DMA controller. It uses separate read and write strobes, sharing similar timings with the Z80 and Intel processors. The on-chip memory management unit (MMU) has the capability of addressing up to 1 MB of memory. It is possible to configure the Z180 to operate as the Hitachi HD64180. Variants Z80182 The Zilog Z80182, introduced in 1997, is an enhanced, faster version of the older Z80 and is part of the Z180 microprocessor A microprocessor is a computer processor where the data processing logic and control is included on a single integrated circuit, or a small number of integrated circuits. The microprocessor contains the arithmetic, logic, and contr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pilot 1000
The Pilot 1000 and Pilot 5000 were the first generations of PDAs produced by Palm Computing (then a subsidiary of U.S. Robotics). It was introduced in March 1996. The Pilot uses a Motorola 68328 processor at 16 MHz, and had 128 kB (Pilot 1000) or 512 kB (Pilot 5000) built in Random-access memory. The PDA has a plastic case (various colors). Its dimensions are 120x80x18 mm and weight is 160 grams. The Pilot has a 160x160 pixel monochrome LCD tactile panel, with a "Graffiti input zone" presented in the bottom third of the screen. Underneath the screen sits a green on/off button, four applications buttons (Date Book, Address Book, To Do List, and Memo Pad) and two scroll buttons. At left, contrast control. At right top, stylus slot. On the back of the device there is a Memory Slot door, Reset button, battery compartment (held two AAA batteries) and Serial Port (for use with the PalmPilot Cradle). Memory is kept in a "memory slot" under a plastic cover at the back top of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palm (PDA)
Palm was a line of personal digital assistants (PDAs) and mobile phones developed by California-based Palm, Inc., originally called Palm Computing, Inc. Palm devices are often remembered as "the first wildly popular handheld computers," responsible for ushering in the smartphone era. The first Palm device, the PalmPilot 1000, was released in 1996 and proved to be popular. It led a growing market for portable computing devices where previous attempts such as Apple's Newton failed or others like Hewlett-Packard's 200LX only serving a niche target market. Most of Palm's PDAs and mobile phones ran the in-house Palm OS software which was later also licensed to other OEMs. A few devices ran on Microsoft's Windows Mobile. In 2009 Palm OS's successor webOS was released, first shipping with the Palm Pre. In 2011 Hewlett-Packard discontinued the Palm brand and started releasing new devices under the HP brand, but discontinued its hardware later that same year. In 2018, a San Franci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tandy Corporation
Tandy Corporation was an American family-owned leather goods company based in Fort Worth, Texas, United States. Tandy Leather was founded in 1919 as a leather supply store. By the end of the 1950s, under the tutelage of then-CEO Charles Tandy, the company expanded into the hobby market, making leather moccasins and coin purses, making huge sales among Scouts, leading to a fast growth in sales. Entering the 1960s, aiming to broaden the company horizon, Charles Tandy acquired a number of craft retail companies, including RadioShack in 1963, then an almost bankrupt chain of electronics stores in Boston. In the 1980s, now led by John Roach as CEO, the corporation started to invest into the personal computer market, being one of the pioneers in the personal computer race, being lauded by the magazine ''Financial World'' as "the driving force at the front-running company in the red-hot personal computer race." In 2000, the Tandy Corporation name was dropped and the entity became ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Personal Computer
A personal computer (PC) is a multi-purpose microcomputer whose size, capabilities, and price make it feasible for individual use. 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. Primarily in the late 1970s and 1980s, the term home computer was also used. Institutional or corporate computer owners in the 1960s had to write their own programs to do any useful work with the machines. While personal computer users may develop their own applications, usually these systems run commercial software, free-of-charge software (" freeware"), which is most often proprietary, or free and open-source software, which is provided in "ready-to-run", or binary, form. Software for personal computers is typically developed and distributed independently from the hardware or operating system ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serial Port
In computing, a serial port is a serial communication interface through which information transfers in or out sequentially one bit at a time. This is in contrast to a parallel port, which communicates multiple bits simultaneously in parallel. Throughout most of the history of personal computers, data has been transferred through serial ports to devices such as modems, terminals, various peripherals, and directly between computers. While interfaces such as Ethernet, FireWire, and USB also send data as a serial stream, the term ''serial port'' usually denotes hardware compliant with RS-232 or a related standard, such as RS-485 or RS-422. Modern consumer personal computers (PCs) have largely replaced serial ports with higher-speed standards, primarily USB. However, serial ports are still frequently used in applications demanding simple, low-speed interfaces, such as industrial automation systems, scientific instruments, point of sale systems and some industrial and consumer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Static Random-access Memory
Static random-access memory (static RAM or SRAM) is a type of random-access memory (RAM) that uses latching circuitry (flip-flop) to store each bit. SRAM is volatile memory; data is lost when power is removed. The term ''static'' differentiates SRAM from DRAM (''dynamic'' random-access memory) — SRAM will hold its data permanently in the presence of power, while data in DRAM decays in seconds and thus must be periodically refreshed. SRAM is faster than DRAM but it is more expensive in terms of silicon area and cost; it is typically used for the cache and internal registers of a CPU while DRAM is used for a computer's main memory. History Semiconductor bipolar SRAM was invented in 1963 by Robert Norman at Fairchild Semiconductor. MOS SRAM was invented in 1964 by John Schmidt at Fairchild Semiconductor. It was a 64-bit MOS p-channel SRAM. The SRAM was the main driver behind any new CMOS-based technology fabrication process since 1959 when CMOS was invented. In 1965, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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