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Vadem
Vadem Inc., later Vadem Limited, was an original design manufacturer, chipset designer, and computer design firm active from 1983 to 2013. The company chiefly focused on the design of mobile computers such as laptops, rendering their services to companies such as Zenith Data Systems, Osborne Computer Corporation, and Sharp Corporation, among others. In the late 1990s, the company released their own branded product, the Vadem Clio, a PDA. History Vadem Inc. was founded by Henry Fung and Chikok Shing in San Jose, California, in 1983. Fung had previously worked for Intel as an engineer, while Shing had worked for the Osborne Computer Corporation, which had filed for Chapter 11 bankruptcy around the time of Vadem's incorporation. In its founding year, Vadem delivered the design for what would become the Morrow Pivot, one of the first battery-powered MS-DOS compatible portable computers, manufactured and sold by Morrow Designs. Morrow provided Vadem with under $3 million in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vadem Clio
{{Advert, date=March 2010 The Vadem Clio is a handheld PC that ran Windows CE H/PC Pro 3.0 (WinCE Core OS 2.11). It was released in 1999. Data Evolution Corporation currently owns the rights to the Clio. Overview The Clio is a convertible tablet computer, designed by Vadem Corporation, which runs Microsoft’s Windows CE operating system and has a "SwingTop" pivoting arm. The 180 degree screen rotation allowed the unit to be used as a touch screen tablet or as a more traditional notebook with keyboard. Clio could run more than 12 hours on a single charge and together with the Sony VAIO, was one of the first full-sized portable computers that measured only an inch (2.2cm) thick. The platform was conceived and created within Vadem by a skunkworks team that was led by Edmond Ku. Clio was first developed without the knowledge of Microsoft and after it was presented to Bill Gates and the CE team, led to the definition of the Jupiter class CE platform. Handwriting software was from Va ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sharp PC-4500
The Sharp PC-4500 is a line of laptop computers released by Sharp Corporation in 1987. The line comprises the PC-4501, the PC-4502, and the PC-4521. The PC-4501 is a bare-bones unit with only 256 KB of Random-access memory, RAM stock, only one floppy drive, no backlighting, and no built-in numeric keypad; the PC-4502 and PC-4521 bumps the stock RAM to 640 KB and includes the latter two features while providing either two floppy drive (PC-4502) or one floppy drive and a 20 MB hard drive (PC-4521). Prices on the line initially ranged from $1,295 to just under $3,000; the PC-4501 was later sold for $995, becoming one of the first sub-$1,000 laptops available on the market. The PC-4500 line received mixed, mostly positive, reviews on its release in September 1987. Development and specifications The PC-4500 series was developed by Sharp Electronics of Japan and co-developed by Vadem, Vadem Inc., an original design manufacturer and computer design consultant of San Jose, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zenith Eazy PC
The Eazy PC (stylized as eaZy pc) is an all-in-one PC, all-in-one IBM PC compatible computer manufactured by Zenith Data Systems (ZDS) starting in 1987. This small-Form factor (design), form-factor IBM Personal Computer XT, XT-compatible system has some unique features, such as using a non-Intel Central processing unit, CPU. The Eazy PC was designed to be a simple, cost-effective computer for the home. This was a departure for ZDS, who had historically avoided the retail consumer market to focus on customers such as businesses, universities, and government agencies. Specifications Construction and components The Eazy PC is an all-in-one system: the cathode ray tube, CRT monitor and its tilt/swivel base are permanently attached to the base unit and cannot be upgraded. The monitor also houses the computer's power supply. The screen measures diagonally. It generates only a gray scale display, using a warm white phosphor. The graphics chip supports Color Graphics Adapter, CGA video w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morrow Pivot
The Pivot is a family of early IBM PC–compatible portable computers first released in 1984 by Morrow Designs, a company founded by George Morrow. It was the first lunchbox-style portable computer, with a vertically configured case that has a fold-down keyboard. The only external component is a single AC adapter. It would have been a little top heavy except for the large camcorder-style battery loaded into its base. The Pivot was designed by Chikok Shing of Vadem Inc. The IBM-compatible Pivot was Morrow's first non-Z80 machine. While modern laptops do not necessarily share its design, it was arguably the most practical machine until desktops embraced 3.5-inch floppies. Robert Dilworth went from being General Manager of Morrow Designs to being CEO of Zenith Data Systems for years as part of Zenith's paying him to talk George Morrow into licensing the Pivot to them. Specifications The original model, retrospectively called the Pivot I, was unveiled at COMDEX/Spring '84 in M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sharp PC-7000
The Sharp PC-7000 is a luggable portable computer released by Sharp Electronics in 1985. The PC-7000 was Sharp's second entry into the IBM PC-compatible portable computer market, their first being the PC-5000. The PC-7000 eschewed the PC-5000's clamshell design, battery operation, and lighter weight— for the PC-7000 versus the PC-5000's . The compromise was an LCD display with electroluminescent backlighting, as well as an increased display line count—25 for the PC-7000 versus the PC-5000's eight. Sharp also replaced the predecessor's Intel 8088 processor with an 8086 running at a user-switchable 7.37 MHz and bumped the stock memory from 128 to 320 KB. These improvements led to higher performance and near-true IBM PC compatibility, in turn leading to a wider range of software that could be used with the computer. Sharp released the PC-7000 in October 1985 to high praise. It spawned a series of luggable computers featuring improvements to the original PC-7000's hardware. Shar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NEC V40
The NEC V20 is a microprocessor that was designed and produced by NEC. It is both Pin compatibility, pin compatible and Binary-code compatibility, object code compatible with the Intel 8088, with an instruction set architecture (ISA) similar to that of the Intel 80188 with some extensions. The V20 was introduced in March 1984. Features The V20's Die (integrated circuit), die comprised 63,000 transistors; more than double the 29,000 of the 8088 CPU. The chip was designed for a clock duty cycle of 50%, compared to the 33% duty cycle used by the 8088. The V20 has two, 16-bit wide internal databuses, allowing two data transfers to occur concurrently. Differences like that meant that a V20 could typically complete more instructions in a given time than an Intel 8088 running at the same frequency. The V20 was fabricated in 2-micron CMOS technology. Early versions ran at speeds of 5, 8, and 10 MHz. In 1990, an upgrade to the fabrication process technology resulted in the V20H a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zenith Data Systems
Zenith Data Systems (ZDS) was a division of Zenith Electronics founded in 1979 after Zenith acquired the Heath Company, which had entered the personal computer market in 1977. Headquartered in Benton Harbor, Michigan, Zenith sold personal computers under both the Heath/Zenith and Zenith Data Systems names. Overview Zenith was an early partner with Microsoft, licensing all Microsoft languages for the Heath/Zenith 8-bit computers. Conversely, Microsoft programmers of the early 1980s did much of their work using Zenith Z-19 and Z-29 CRT display terminals hooked to central mainframe computers. The first Heathkit H8 computer, sold in kit form, was built on an Intel 8080 processor. It ran K7 audio-tape software, punched tape software (with puncher/reader H10) and HDOS (Heath Disk Operating System) software on 5¼" hard-sectored floppy disks. The CP/M operating system was adapted to all Heath/Zenith computers, in 1979. Next, the early Heath/Zenith computers (H88/ H89 and Z-89) were b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Handheld PC
A handheld personal computer (PC) is a miniature computer typically built around a clamshell form factor and is significantly smaller than any standard laptop computer, but based on the same principles. It is sometimes referred to as a ''palmtop computer'', not to be confused with Palmtop PC which was a name used mainly by Hewlett-Packard. Most handheld PCs use an operating system specifically designed for mobile use. Ultra-compact laptops capable of running common x86-compatible desktop operating systems are typically classified as subnotebooks. The first hand-held device compatible with desktop IBM personal computers of the time was the Atari Portfolio of 1989. Other early models were the Poqet PC of 1989 and the Hewlett Packard HP 95LX of 1991 which run the MS-DOS operating system. Other DOS-compatible hand-held computers also existed. After 2000 the handheld PC segment practically halted, replaced by other forms, although later communicators such as Nokia E90 can be consi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morrow Pivot II
The Morrow Pivot II, released in May 1985, was a portable personal computer 100% compatible with IBM PC Software. It was designed by Norman Towson and Micheal Stolowitz, and manufactured by Morrow Designs - based on the Pivot designed by Vadem Corp. With one drive, 256 KB RAM, and a monochrome backlit LCD, the Pivot II had a list price of US$1,995. The Morrow Pivot II included one or two 5-1/4" floppy drives. This machine was in a vertical configuration with a fold down keyboard. This was called a "lunch box" style unlike the typical laptop today. The only external component was a single AC adapter. It would have been a little top heavy except for the large Panasonic camcorder battery loaded into its base. The Pivot II design was licensed to Zenith Data Systems for $2M and sold as the Zenith Z-171; Zenith sold over $500M to the US government, many to the Internal Revenue Service. The IBM-compatible Pivot was Morrow's first non-Z80 machine. While modern laptops don't share its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intel 80186
The Intel 80186, also known as the iAPX 186, or just 186, is a microprocessor and microcontroller introduced in 1982. It was based on the Intel 8086 and, like it, had a 16-bit external data bus multiplexed with a 20-bit address bus. The 80188 variant, with an 8-bit external data bus was also available. Description The 80186 series was generally intended for embedded systems, as microcontrollers with external memory. Therefore, to reduce the number of integrated circuits required, it included features such as clock generator, interrupt controller, timers, wait state generator, DMA channels, and external chip select lines. The initial clock rate of the 80186 was 6 MHz, but due to more hardware available for the microcode to use, especially for address calculation, many individual instructions completed in fewer clock cycles than on an 8086 at the same clock frequency. For instance, the common ''register+immediate'' addressing mode was significantly faster than on th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CMOS
Complementary metal–oxide–semiconductor (CMOS, pronounced "sea-moss", ) is a type of metal–oxide–semiconductor field-effect transistor (MOSFET) fabrication process that uses complementary and symmetrical pairs of p-type and n-type MOSFETs for logic functions. CMOS technology is used for constructing integrated circuit (IC) chips, including microprocessors, microcontrollers, memory chips (including CMOS BIOS), and other digital logic circuits. CMOS technology is also used for analog circuits such as image sensors (CMOS sensors), data converters, RF circuits (RF CMOS), and highly integrated transceivers for many types of communication. The CMOS process was originally conceived by Frank Wanlass at Fairchild Semiconductor and presented by Wanlass and Chih-Tang Sah at the International Solid-State Circuits Conference in 1963. Wanlass later filed US patent 3,356,858 for CMOS circuitry and it was granted in 1967. commercialized the technology with the trademark "COS-MO ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
I386SL
The Intel 386, originally released as 80386 and later renamed i386, is a 32-bit microprocessor introduced in 1985. The first versions had 275,000 transistorsmit.edu—The Future of FPGAs (Cornell) October 11, 2012 and were the of many s and high-end s of the time. As the original implementation of the |
