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BBS in a Box 5
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BBS in a Box -Volume V (BBS in a Box) (April 1992).iso
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Macintosh IIfx Q & A (3⁄19⁄90)
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1990-03-21
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Macintosh IIfx Question & Answer
Q: Do all Macintosh applications run on IIfx?
A: Virtually all Macintosh applications run on the Macintosh IIfx, as do
virtually all NuBus cards.
Q: Which applications will take advantage of the new power of the Macintosh
IIfx?
A: All Macintosh applications will take advantage of the new power.
Mainstream applications like word processing and spreadsheets will be faster
and more responsive, as will computing-intensive tasks like scientific and
engineering activities.
Q: Do you have to be a specialized Apple reseller to sell the Macintosh IIf
A: All authorized Apple resellers can sell the Macintosh IIfx.
Q: With all this integration on the Macintosh IIfx, why didn't you put it i
a three-slot design?
A: There are three key reasons. First, many of our customers are OEMs and
VARs, who take Macintosh technology and add significant value with special
solutions. These solutions require the system's six-slot design and Processor
Direct Slot (PDS) either for maximum expandability or maximum NuBus power.
Second, we wanted to provide an upgrade path for Macintosh II and Macintosh IIx
owners, hence the Macintosh IIfx upgrade kit. Third, to achieve fully balanced
system design, we needed to integrate the built-in 32-bit cache, Processor
Direct Slot and other features that wouldn't have been possible in a IIcx
design.
Q: How many new Application Specific Integrated Chips (ASICs) are on the
Macintosh IIfx board?
A: There are a total of seven new ASICs. Two are Peripheral Interface
Control (PIC) Chips, which are dedicated to controlling low-level routines such
as serial communication and floppy disk access. There is one Small Computer
System Interface/Direct Memory Access (SCSI/DMA) chip, which controls the SCSI
bus. There is one Operating System Support chip, which is a multipurpose ASIC,
dedicated to managing interrupts from external sources so they are synchronized
with the internal bus. There is one Bus Interface Unit 30 chip and a Bus
Interface Unit 2 chip, which drive NuBus processes and bus synchronization,
respectively. There is one Faster Memory Controller chip, which controls
access from the cache, ROM, and RAM to the system's main processor.
Additionally, there are four ASICs which also appeared in the Macintosh IIci
design.
Q: What are the benefits of all this integration?
A: This high level of integration yields four major benefits. First, it
opens up more space on the board for future functionality. Second, it yields
more efficient use of power. Third, it increases overall system performance.
And fourth, it increases system reliability.
Q: What sort of advantages does the Macintosh IIfx get from the Peripheral
Interface Control (PIC) chips?
A: The PIC chips are important to the overall performance of the Macintosh
IIfx system, as they balance the increase in clockspeed to 40 MHz by ensuring
that I/O processes keep pace with the processor's speed. Additionally, they
free the main processor from processing low-level interrupts. As a result, the
PIC chips provide high levels of dedicated and predictable performance for
standard I/O routines. For example, network routing techniques on the Macintosh
IIfx are completely transparent to users performing any number of Macintosh
applications. In future versions of the Macintosh operating system, the
Macintosh IIfx will take greater advantage of the PIC chips' capabilities.
Q: Why are you shipping a floppy-only version?
A: By shipping a floppy-only version, we provide a system upon which
resellers, VARs, OEMs, and other third parties can add value.
Q: Are you going to be shipping the Macintosh IIfx system with NuBus cards
installed?
A: The top cover of the IIfx has a special, improved design that allows App
factories to preconfigure the systems with NuBus cards installed as determined
by customer demands. As manufacturing processes evolve to utilize this
hardware capability, we will start shipping systems with customer-demanded
NuBus cards preinstalled.
Q: Are you shipping system software preinstalled like you did with the
Portable?
A: System Software version 6.0.5 and HyperCard version 1.2.5 are preinstall
on Macintosh IIfx systems that have 80MB and 160MB internal hard drives,
further enhancing ease of set up.
Q: Will the Macintosh IIfx run System 7.0?
A: The Macintosh IIfx is System 7.0-ready. It supports the virtual memory a
32-bit addressing capabilities of System 7.0.
Q: Why did you choose to use new DRAM for the Macintosh IIfx?
A: Optimizing the system's 40 MHz capabilities requires balancing the
system's entire architecture, including DRAM access. We chose new 64-pin DRAM
for the Macintosh IIfx because it provides a higher level of DRAM-access
performance, as it allows the system to perform overlapped writes to DRAM
concurrent with reads from the cache or ROM.
Q: Does this mean that Macintosh II and IIx customers who wish to upgrade t
the Macintosh IIfx have to buy new DRAM, also?
A: Yes. The Macintosh IIfx-specific DRAM (which is faster and features a n
SIMM module) is available from Apple and third parties.
Q: With the Macintosh IIfx, why would anybody buy a Macintosh IIci?
A: The Macintosh IIci has been an extremely well-received new product for
Apple and the company expects it to remain in high demand. It offers customers
high-performance and enhanced functionality in a IIcx design. With 68030/68882
processor/coprocessor combination running at 25 MHz, and a balanced system
architecture, it is a high-performance system. The IIcx design provides users
with a flexible, small footprint. And its built-in video capabilities provide
enhanced functionality. The Macintosh IIci fills an important role in the
Macintosh product line by providing high-performance in the Macintosh IIcx
design.
Q: Are the I/O processors and SCSI/DMA fully utilized by both A/UX and the
Macintosh operating system?
A: A/UX takes full advantage of the I/O processors and the SCSI/DMA chip.
The Macintosh operating system also recognizes significant benefit from the I/O
processors and the SCSI/DMA as these devices relieve the 68030 CPU from
low-level interupts and routines for serial communication, Apple Desktop Bus
processes, floppy control, and SCSI routines. Consequently, Macintosh IIfx
users will experience greater performance when using the system as a network
router (managing the interaction between two separate networks) and smoother
mouse movement, among other benefits. As the Macintosh operating system
evolves, it will take even greater advantage of these hardware enhancements,
just as A/UX does today. The I/O processors should be viewed as an
architectural stake in the ground for future Macintosh operating systems.
Q: Are you creating a new bus with the PDS?
A: PDS, by definition, is linked to the processor. So when a vendor change
a processor clockspeed, of course, the PDS architecture must be different as
well. The Macintosh IIfx PDS is a superset of the Macintosh SE/30 PDS. As a
result, it will be relatively easy for third parties to revamp an SE/30 card to
work on the IIfx. We should point out, as well, that Processor Direct Slots
tend to be created for very job-specific work and a hardware-specific platform.
Q: What's the internal storage strategy for the Macintosh IIfx?
A: We offer the IIfx in three standard internal storage configurations: a
floppy-only version with a SuperDrive disk drive; a IIfx with an 80MB internal
hard drive; and one with a 160MB internal hard drive. This provides customers
and resellers with flexibility and a range of options. We believe the most
popular IIfx configurations will be the 80MB and 160MB versions, but by
creating a floppy-only configuration, we give customers and resellers the
option to configure a system with more internal storage, if they want it.
Q: Are there plans for a three-slot version of the Macintosh IIfx?
A: We expect the Macintosh IIfx to appeal to customers who have
high-performance computing needs. And usually these customers want maximum
expandability as well as high-performance. So a six-slot system makes sense
for them. The Macintosh IIci is a three-slot, 25 MHz '030 system and has been
very popular with people who want high-performance in a three-slot design
center.
Q: Can users upgrade from Macintosh II to the Macintosh IIfx?
A: A logic board upgrade is available for both Macintosh II and Macintosh I
customers. All that's necessary is a logic board swap, as the form factor of
the Macintosh IIfx is the same as the Macintosh II and IIx. The upgrade costs
$2,999, manufacturer's suggested U.S. retail price.
Q: Why is there no onboard video for the Macintosh IIfx?
Onboard video makes sense for a more mainstream product like the Macintosh
IIci. But with the Macintosh IIfx, we believe our high-performance customers
will opt for as much power and flexibility as possible. As a result, one of
the six NuBus slots can be used for the customers' video card of choice,
including 24-bit color cards from Apple and third-party vendors. The Macintosh
IIfx also runs the new family of Macintosh Display Cards, including the 8.24 GC
card.
Q: Why is there no Ethernet card on the logic board of the Macintosh IIfx?
A: Ethernet is an important direction for the future. But until we can bot
fit the right Ethernet control logic on the logic board while offering the same
level of plug-and-play functionality provided by LocalTalk, we will continue
with LocalTalk as our built-in networking interface of choice. Currently,
NuBus provides a powerful and flexible connectivity solution. Additionally,
AppleTalk is built into every Macintosh system, including the Macintosh IIfx.
Q: Is the IIfx a workstation?
At Apple Computer, we are in the personal computing business. That means we
make broad-based tools that help people perform a wide sweep of mainstream and
general purpose tasks: from word processing to database management; from
desktop publishing to personal productivity. Clearly, as we add more power and
functionality to our Macintosh architecture, Macintosh will include many of the
features found in workstations. And consequently, Macintosh users will
increasingly be able to perform many of the tasks that many workstation users
perform––especially in the scientific and engineering markets. And they'll be
able to perform these tasks in the distinctive Macintosh fashion.
We view this inclusion of new customers, markets and usages as part of the
natural evolution of the Macintosh system architecture: As Macintosh becomes
more and more powerful, it will become the computing platform of choice for an
ever-broadening group of people.
Q: When will Apple include a Motorola '040 chip in a Macintosh?
A: We have a long and successful relationship with Motorola and we will
incorporate its new technology into our systems when it is appropriate for us
to do so and when those components are available in enough volume to meet
expected customer demand.
-30-
Apple, the Apple logo, Macintosh, HyperCard, A/UX, AppleTalk and LocalTalk are
registered trademarks; Apple Desktop Bus, and SuperDrive are trademarks of
Apple Computer, Inc. NuBus is a trademark of Texas Instruments.
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