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Quadra 700
The Macintosh Quadra 700 is a personal computer designed, manufactured and sold by Apple Computer from October 1991 to March 1993. It was introduced alongside the Quadra 900 as the first computers in the Quadra series, using the Motorola 68040 processor in order to compete with IBM-compatible PCs powered by the Intel i486DX. The Quadra 700 is also the first computer from Apple to be housed in a mini-tower form factor, which in 1991 was becoming a popular alternative to standard desktop-on-monitor cases that were common through the 1980s. The Quadra 700 was considerably more popular than the Quadra 900 (succeeded after six months by the faster but otherwise very similar Quadra 950) that it was sold alongside, due to the 900/950 having more expansion options in their full tower cases which made them more expensive and bulky. The Quadra 700 originally had a list price of US$5,700, but had dropped to under $4,700 for a base model by the time its replacement, the Quadra 800, wen ... [...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 Inc., 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 Mac (computer), Macintosh model. The first models were the Macintosh Quadra 700, Quadra 700 and Macintosh Quadra 900, Quadra 900, both introduced in October 1991, with the latter discontinued after six months and replaced by the Macintosh Quadra 950, Quadra 950. The Macintosh Quadra 800, Quadra 800 was added in February 1993 (succeeding the Quadra 700), followed the multimedia-focused Macintosh Quadra 840AV, 840AV at the end of July 1993. The Macintosh Centris line was merged with the Quadra in October 1993, adding the Macintosh Quadra 610, 610, Macintosh Quadra 650, 650 and Macintosh Quadra 660AV, 660AV to the range. The Macintosh Quadra 605, 605 (also sold as the Performa 475 or LC 475) was also introduced in Oc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Tower
In personal computing, a tower unit, or simply a tower, is a form factor of desktop computer case whose height is much greater than its width, thus having the appearance of an upstanding tower block, as opposed to a traditional " pizza box" computer case whose width is greater than its height and appears lying flat. Compared to a pizza box case, the tower tends to be larger and offers more potential for internal volume for the same desk area occupied, and therefore allows more hardware installation and theoretically better airflow for cooling. Multiple size subclasses of the tower form factor have been established to differentiate their varying sizes, including full-tower, mid-tower, midi-tower, mini-tower, and deskside; these classifications are however nebulously defined and inconsistently applied by different manufacturers. Although the traditional layout for a tower system is to have the case placed on top of the desk alongside the monitor and other peripherals, a far more ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quadra 840AV
The Macintosh Quadra 840AV is a personal computer designed, manufactured, and sold by Apple Computer from July 1993 to July 1994. It was introduced alongside the Centris 660AV, where "AV" signifies audiovisual capabilities, such as video input and output, telecommunications, speech recognition, and enhanced audio. The 840AV has the same mini-tower form factor as the Quadra 800, with a significantly different logic board which includes a faster Motorola 68040 processor. The Quadra 840AV was discontinued shortly after the introduction of the PowerPC-based Power Macintosh. The Power Macintosh 8100/80AV provides the same functionality in the same form factor, and had a significantly higher price point. The 7100/66AV was priced comparably to the 840AV but in a IIvx-style desktop case. Hardware At launch, Quadra 840AV's 40 MHz Motorola 68040 CPU and interleaved RAM made it the fastest Macintosh available, topping both the nominally higher-end Quadra 950 and the Quadra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Video Random-access Memory
Video random-access memory (VRAM) is dedicated computer memory used to store the pixels and other graphics data as a framebuffer to be rendered on a computer monitor. It often uses a different technology than other computer memory, in order to be read quickly for display on a screen. Relation to GPUs Many modern GPUs rely on VRAM. In contrast, a GPU that does ''not'' use VRAM, and relies instead on system RAM, is said to have a unified memory architecture, or shared graphics memory. System RAM and VRAM have been segregated due to the bandwidth requirements of GPUs, and to achieve lower latency, since VRAM is physically closer to the GPU die. Modern VRAM is typically found in a Ball grid array, BGA package soldered onto a graphics card. The VRAM is cooled along with the GPU by the GPU heatsink. Technologies * Dual-ported video RAM, used in the 1990s and at the time often called "VRAM" * SGRAM * GDDR SDRAM * High Bandwidth Memory (HBM) See also * Graphics processing unit * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Integrated Graphics
A graphics processing unit (GPU) is a specialized electronic circuit designed for digital image processing and to accelerate computer graphics, being present either as a discrete video card or embedded on motherboards, mobile phones, personal computers, workstations, and game consoles. GPUs were later found to be useful for non-graphic calculations involving embarrassingly parallel problems due to their parallel structure. The ability of GPUs to rapidly perform vast numbers of calculations has led to their adoption in diverse fields including artificial intelligence (AI) where they excel at handling data-intensive and computationally demanding tasks. Other non-graphical uses include the training of neural networks and cryptocurrency mining. History 1970s Arcade system boards have used specialized graphics circuits since the 1970s. In early video game hardware, RAM for frame buffers was expensive, so video chips composited data together as the display was being scanned o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Processor Direct Slot
A processor direct slot (PDS) is a slot incorporated into many older Macintosh models that allowed direct access to the signal pins of a CPU, similar to the functionality of a local bus in PCs. This would result in much higher speeds than having to go through a bus layer, such as NuBus, which typically ran at a slower 10 MHz speed. Overview Typically, if a machine had bus expansion slots it would feature multiple bus expansions slots. However, there was never more than one PDS slot, as rather than providing a sophisticated communication protocol with ''arbitration'' between different bits of hardware that might be trying to use the communication channel at the same time, the PDS slot, for the most part, just gave direct access to signal pins on the CPU, making it closer in nature to a local bus. Thus, PDS slots tended to be CPU-specific, and therefore a card designed for the PDS slot in the Motorola 68030-based Macintosh SE/30, for example, would not work in the Moto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NuBus
NuBus () is a 32-bit parallel computer bus, originally developed at MIT during between 1978 and 1979 as part of the NuMachine workstation project, it would subsequently be standardized by the IEEE in 1987. The first complete implementation of the NuBus was done by Western Digital for their NuMachine, and for the Lisp Machines Inc. LMI Lambda. The NuBus was later incorporated in Lisp products by Texas Instruments (Explorer), and used as the main expansion bus by Apple Computer and a variant called NeXTBus was developed by NeXT. It is no longer widely used outside the embedded market. Architecture Early microcomputer buses like S-100 were often just connections to the pins of the microprocessor and to the power rails. This meant that a change in the computer's architecture generally led to a new bus as well. Looking to avoid such problems in the future, NuBus was designed to be independent of the processor, its general architecture and any details of its I/O handling. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Desktop Publishing
Desktop publishing (DTP) is the creation of documents using dedicated software on a personal ("desktop") computer. It was first used almost exclusively for print publications, but now it also assists in the creation of various forms of online content. Desktop publishing software can generate page layouts and produce text and image content comparable to the simpler forms of traditional typography and printing. This technology allows individuals, businesses, and other organizations to self-publish a wide variety of content, from menus to magazines to books, without the expense of commercial printing. Desktop publishing often requires the use of a personal computer and WYSIWYG page layout software to create documents for either large-scale publishing or small-scale local printing and distribution although non-WYSIWYG systems such as TeX and LaTeX are also used, especially in scientific publishing. Originally, desktop publishing methods provided more control over design, layou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apple Displays
Apple Inc. has sold a variety of LCD and CRT computer displays since introducing their first display in 1980. Apple paused production of their own standalone displays in 2016 and partnered with LG to design displays for Macs. In June 2019, the Pro Display XDR was introduced, however it was expensive and targeted for professionals. In March 2022, the Studio Display was launched as a consumer-targeted counterpart. These are currently the only Apple-branded displays available. CRT displays In the beginning (throughout the 1970s), Apple did not manufacture or sell displays of any kind, instead recommending users plug-into their television sets or (then) expensive third party monochrome monitors. However, in order to offer complete systems through its dealers, Apple began to offer various displays including the 1981 Monitor ///, which they manufactured in-house and paired perfectly with the Apple ///. Apple then went on to supply a rebadged third party manufactured monitor that p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hackaday
''Hackaday'' is a hardware hacking website. It was founded in 2004 as a web magazine. Since 2014, Hackaday also hosts a community database of open-source hardware designs. History Hackaday was founded in 2004 by Phillip Torrone as a web magazine for Engadget, devoted to publishing and archiving "the best hacks, mods and DIY projects from around web". Hackaday was since split from Engadget and its former parent company Weblogs, Inc. by its at the time owner Jason Calacanis. In 2007 ''Computerworld'' magazine ranked Hackaday #10 on their list of the top 15 geek blog sites. Hackaday.io started as a project hosting site in 2014 under the name of Hackaday Projects. It allows users to upload open-source hardware designs. As of 2015, it had grown into a social network of 100,000 members. In 2015, Hackaday's owner, Supplyframe, acquired the hardware marketplace Tindie. In 2021, Hackaday's owner, Supplyframe, was acquired by Siemens. See also * Instructables * Thingiverse * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macintosh IIcx
The Macintosh IIcx is a personal computer designed, manufactured and sold by Apple Inc., Apple Computer, Inc. from March 1989 to March 1991. Introduced six months after the Macintosh IIx, the IIcx resembles the IIx and provides the same performance, but is narrower, lighter, and quieter due to a smaller internal fan. The relative compactness results in three NuBus slots being available, compared with six on the IIx. The new case, Apple's first to be designed to operate in either a horizontal or vertical orientation, remained in use for its successors the Macintosh IIci and Macintosh Quadra 700, Quadra 700. The idea for vertical orientation, one of the first minitower cases, was suggested by Apple CEO John Sculley, who was running out of space on his desk, despite the fact that the new layout actually took more space once the monitor was taken into account. The model was designated IIcx for ''compact'' (echoing the earlier Apple IIc), and the ''x'' was Apple's designation for t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quadra 700 Rear Panel
Quadra may refer to: * Quadra, São Paulo, a municipality in Brazil * Quadra Island, British Columbia, Canada * Vancouver Quadra, a federal electoral district in British Columbia, Canada * , a Royal Canadian Navy cadet training center in Comox, British Columbia * Macintosh Quadra, a line of computers made by Apple Computer * Quadra, Telecine introduced by Broadcast Television Systems Inc. in 1993 * Quadra, a group of four psychological types in the theory of socionics * ''Quadra'' (album), by Brazilian heavy metal band Sepultura * Quadra Blu, a character from Max Rep comics by illustrator Lyman Dally * The fighting style of several characters in the anime manga and light novel ''Aria the Scarlet Ammo'' * Quadra, a genus of flies described in 1929 See also * Álvaro de la Quadra (d.1564), Spanish Ambassador to England during the reign of Queen Elizabeth of England * Juan Francisco de la Bodega y Quadra (1743–1794), Spanish explorer * Quadra's and Vancouver's Island Vanc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
