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Macintosh Quadra 800
The Macintosh Quadra 800 (also sold with bundled server software as the Apple Workgroup Server 80) is a personal computer that is a part of Apple Computer's Quadra series of Macintosh computers. Introduced in February 1993 alongside the first Macintosh Centris models, it was the first totally new Quadra model since the original Quadras, the 700 and the 900 / 950. It was positioned below the 950 (and the previous midrange Quadra, the 700, was discontinued shortly after the 800's introduction). Debuting at half the price of the 950, the 800 featured the same Motorola 68040 33 MHz processor as the 950 but its additional interleaved RAM running at 70 ns, as well as an enhanced video system and SCSI bus, enabled it to outperform the 950. However, its tower case was smaller and much less accessible, giving it the reputation of being one of Apple's worst cases of all time. The Quadra 800 was later joined by the multimedia-focused Quadra 840AV. The Quadra 800 was discontinued in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macintosh Quadra
The Macintosh Quadra is a family of personal computers designed, manufactured and sold by Apple Computer, Inc. from October 1991 to October 1995. The Quadra, named for the Motorola 68040 central processing unit, replaced the Macintosh II family as the high-end Macintosh model. The first models were the Quadra 700 and Quadra 900, both introduced in October 1991. The Quadra 800, 840AV and 605 were added through 1993. The Macintosh Centris line was merged with the Quadra in October 1993, adding the 610, 650 and 660AV to the range. After the introduction of the Power Macintosh line in early 1994, Apple continued to produce and sell new Quadra models; the 950 continued to be sold until October, 1995. The product manager for the Quadra family was Frank Casanova who was also the Product Manager for the Macintosh IIfx. Models The first computers bearing the Macintosh Quadra name were the Quadra 700 and Quadra 900, both introduced in 1991 with a central processing unit (CPU) s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interleaved Memory
In computing, interleaved memory is a design which compensates for the relatively slow speed of dynamic random-access memory (DRAM) or core memory, by spreading memory addresses evenly across memory banks. That way, contiguous memory reads and writes use each memory bank in turn, resulting in higher memory throughput due to reduced waiting for memory banks to become ready for the operations. It is different from multi-channel memory architectures, primarily as interleaved memory does not add more channels between the main memory and the memory controller. However, channel interleaving is also possible, for example in freescale i.MX6 processors, which allow interleaving to be done between two channels. Overview With interleaved memory, memory addresses are allocated to each memory bank in turn. For example, in an interleaved system with two memory banks (assuming word-addressable memory), if logical address 32 belongs to bank 0, then logical address 33 would belong to bank 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apple Desktop Bus Mouse II
Apple Inc. has designed and manufactured several models of mice, trackpads and other pointing devices, primarily for use with Macintosh computers. Over the years, Apple has maintained a distinct form and function with its mice that reflect their design languages of that time. Apple's current external pointing devices are the Magic Mouse 2 and Magic Trackpad 2. Mice Mice manufactured by Apple previously only had a single button control interface, until the Mighty Mouse in 2005, which introduced a clickable scroll ball and multiple programmable buttons. Mice made by Apple contained a ball-tracking control mechanism, until the Pro Mouse in 2000 when Apple moved to an optical-based tracking mechanism. Apple's current mouse, the Magic Mouse 2, uses laser tracking. Background In 1979, Apple was planning to develop a business computer, and arranged a visit with the Xerox Parc research center to view some of their experimental technology. It was there they discovered the mouse, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AppleCD
AppleCD is a range of SCSI-based CD-ROM drives for Apple Macintosh personal computers, manufactured and sold by Apple Computer from the late 1980s to late 1990s. Earlier AppleCD drives required a CD caddy in order to be used, while later models used a tray-loading mechanism. The original model introduced in 1988 was simply called the AppleCD SC. There was also a version of the CD drive that did not have the Apple logo. AppleCD SC The AppleCD SC was the first CD-ROM by Apple Computer Company, introduced in 1988. It originally contained a fan but in 1990 they removed it because it was unneeded and attracted dust onto the optical disk head which could cause problems. It uses a front-loading caddy 1x CD-ROM and is only capable of Read Only Media. This accessory device was only able to read compact discs up to a 650 MB capacity in five formats, CD-Audio, CD-ROM, HFS, ProDOS, and High Sierra. On the front of the device it has an eject button, mini-phono sound out jack, and a volume ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IDG Books
International Data Group (IDG, Inc.) is a market intelligence and demand generation company focused on the technology industry. IDG, Inc.’s mission is centered around supporting the technology industry through research, data, marketing technology, and insights that help create and sustain relationships between businesses. IDG, Inc. is wholly owned by Blackstone and is led by Mohamad Ali, who was appointed CEO of the company in 2019. Ali serves on IDG, Inc.’s leadership team along with IDC President Crawford Del Prete, IDG, Inc.’s Chief Financial Officer Donna Marr, and Foundry President Kumaran Ramanathan. IDG, Inc. is headquartered in Needham, MA and is parent company to both International Data Corporation (IDC) and Foundry (formerly IDG Communications). History International Data Group was initially founded as International Data Corporate (IDC) in 1964 by Patrick Joseph McGovern, shortly after he had graduated from the Massachusetts Institute of Technology (MIT). Bas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Pogue
David Welch Pogue (born March 9, 1963) is an American technology and science writer and TV presenter. He is an Emmy-winning correspondent for ''CBS News Sunday Morning'' and author of the "Crowdwise" column in ''The New York Times'' Smarter Living section. He has hosted 18 ''Nova'' specials on PBS, including '' NOVA ScienceNow'', the ''Making Stuff'' series in 2011 and 2013, and ''Hunting the Elements'' in 2012. Pogue has written or co-written seven books in the ''For Dummies'' series (including Macintosh computers, magic, opera, and classical music). In 1999, he launched his own series of computer how-to books called the '' Missing Manual'' series, which now includes more than 100 titles covering a variety of Mac and Windows operating systems and applications. Among the dozens of books Pogue has authored is ''The World According to Twitter'' (2009), written in collaboration with around 500,000 of his Twitter followers, and ''Pogue's Basics'' (2014), which was a ''New York Time ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
InfoWorld
''InfoWorld'' (abbreviated IW) is an information technology media business. Founded in 1978, it began as a monthly magazine. In 2007, it transitioned to a web-only publication. Its parent company today is International Data Group, and its sister publications include '' Macworld'' and ''PC World''. InfoWorld is based in San Francisco, with contributors and supporting staff based across the United States. Since its founding, ''InfoWorld''s readership has largely consisted of IT and business professionals. ''InfoWorld'' focuses on how-to, analysis, and editorial content from a mixture of experienced technology journalists and working technology practitioners. The site averages 4.6 million monthly page views and 1.1 million monthly unique visitors. History The magazine was founded by Jim Warren in 1978 as ''The Intelligent Machines Journal'' (IMJ). It was sold to IDG in late 1979. On 18 February 1980, the magazine name was changed to ''InfoWorld''. In 1986, the Robert X. Cringel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Macintosh 8200
Power most often refers to: * Power (physics), meaning "rate of doing work" ** Engine power, the power put out by an engine ** Electric power * Power (social and political), the ability to influence people or events ** Abusive power Power may also refer to: Mathematics, science and technology Computing * IBM POWER (software), an IBM operating system enhancement package * IBM POWER architecture, a RISC instruction set architecture * Power ISA, a RISC instruction set architecture derived from PowerPC * IBM Power microprocessors, made by IBM, which implement those RISC architectures * Power.org, a predecessor to the OpenPOWER Foundation * SGI POWER Challenge, a line of SGI supercomputers Mathematics * Exponentiation, "''x'' to the power of ''y''" * Power function * Power of a point * Statistical power Physics * Magnification, the factor by which an optical system enlarges an image * Optical power, the degree to which a lens converges or diverges light Social sciences and politi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Macintosh 9500
The Power Macintosh 9500 (sold as Power Macintosh 9515 in Europe and Asia) is a personal computer designed, manufactured and sold by Apple Computer from June 1995 to February 1997. It is powered by a PowerPC 604 processor, a second-generation PowerPC chip which is faster than the PowerPC 601 chip used in the Power Macintosh 8100. The 180MP and models, introduced August 1996, use the enhanced PowerPC 604e processor. ''MacWorld'' Magazine gave the 9500 a positive review, concluding that it is "not the second-generation Power Mac for the rest of us — it's too pricey .... but it is an excellent foundation for a high-end graphics workstation — for color publishing or media production. Its speed and expandability should also made it popular in the scientific and technical markets." Their benchmarks showed that the 9500 outperformed the Quadra 950 when running older Mac software in the Mac 68k emulator, posting speeds almost twice as fast as the Quadra 900. The 9500 was replaced b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Macintosh 7200
The Power Macintosh 7200 (sold as a Power Macintosh 8200 in Europe) is a personal computer designed, manufactured, and sold by Apple Computer from August 1995 to February 1997. The 90 MHz model was sold in Japan as the Power Macintosh 7215, and the 120 MHz model with bundled server software as the Apple Workgroup Server 7250. When sold as the 8200, it used the Quadra 800/ Power Mac 8100's mini-tower form factor. The 7200 was introduced alongside the Power Macintosh 7500 and 8500 at the 1995 MacWorld Expo in Boston. Apple referred to these machines collectively as the "Power Surge" line, communicating that this second generation of PowerPC machines offered a significant speed improvement over their predecessors. Introduced as a successor to the Power Macintosh 7100, the 7200 represents the low end of this generation of Power Macintosh, which replaced NuBus with PCI. It shares the 7500's "Outrigger" case. At launch, the 7200 was available with processor speeds of 75 and 90 MHz, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Macintosh 8500
The Power Macintosh 8500 (sold as the Power Macintosh 8515 in Europe and Japan) is a personal computer designed, manufactured and sold by Apple Computer from August 1995 to February 1997. Billed as a high-end graphics computer, the Power Macintosh 8500 was initially released with a 120 MHz PowerPC 604, and unlike earlier Power Macintosh machines, the CPU was mounted on an upgradeable daughtercard. Though slower than the 132 MHz Power Macintosh 9500, the first-generation 8500 featured several audio and video (S-Video and composite video) in/out ports not found in the 9500. In fact, the 8500 incorporated near-broadcast quality (640×480) A/V input and output and was the first personal computer to do so, but no hard drive manufactured in 1997 could sustain the 18 MB/s data rate required to capture video at that resolution. Later, special "AV" hard drives were made available that could delay thermal recalibration until after a write operation had completed. With special c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PowerPC
PowerPC (with the backronym Performance Optimization With Enhanced RISC – Performance Computing, sometimes abbreviated as PPC) is a reduced instruction set computer (RISC) instruction set architecture (ISA) created by the 1991 Apple Inc., Apple–IBM–Motorola alliance, known as AIM alliance, AIM. PowerPC, as an evolving instruction set, has been named Power ISA since 2006, while the old name lives on as a trademark for some implementations of Power Architecture–based processors. PowerPC was the cornerstone of AIM's PReP and Common Hardware Reference Platform (CHRP) initiatives in the 1990s. Originally intended for personal computers, the architecture is well known for being used by Apple's Power Macintosh, PowerBook, iMac, iBook, eMac, Mac Mini, and Xserve lines from 1994 until 2005, when Mac transition to Intel processors, Apple migrated to Intel's x86. It has since become a niche in personal computers, but remains popular for embedded system, embedded and high-performanc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
