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Newsgroups: comp.sys.amiga.reviews
Path: menudo.uh.edu!usenet
From: koren@fc.hp.com (Steve Koren)
Subject: REVIEW: Commodore Amiga 4000
Message-ID: <1992Oct26.173622.22620@menudo.uh.edu>
Followup-To: comp.sys.amiga.hardware
Keywords: Amiga, computer, hot topic, commercial
Sender: amiga-reviews@math.uh.edu (comp.sys.amiga.reviews moderator)
Nntp-Posting-Host: karazm.math.uh.edu
Reply-To: koren@fc.hp.com (Steve Koren)
Organization: The Amiga Online Review Column - ed. Daniel Barrett
Date: Mon, 26 Oct 1992 17:36:22 GMT
PRODUCT NAME:
Amiga 4000
BRIEF DESCRIPTION:
This is a review of the Amiga 4000, the latest machine in the Amiga line
of personal computers from Commodore.
The machine as reviewed is:
Amiga 4000
Commodore 1960 Multisync Monitor
6 Mb RAM
68040 CPU/25 MHz
120 Mb HD
1.76 Mb floppy drive
"AGA" chipset
This particular machine was apparently one of the first 200 produced.
LIST PRICE:
Check with your dealer. The original MSLP is US$3699, but the street
price seems to be quite a bit cheaper. Prices certainly vary
geographically as well.
COMPANY INFORMATION:
Commodore Business Machines, Inc.
1200 Wilson Drive
West Chester, PA 19380 USA
(The machine is produced in England, and the keyboard and mouse are
produced in Malaysia).
OBTAINING THE MACHINE:
I had a very difficult time hunting down a place to buy a 4000. Four
successive calls to the "Commodore Dealer Locator" got me phone numbers
of supposed dealers, but in all cases the dealers either had gone out of
business, or no longer sold Amigas when I called. This was a bit
frustrating. After two weeks of searching, I eventually found a dealer
about 75 miles away by talking to someone who had bought an Amiga there
a while ago. The chore of finding the computer in the first place was
one of the few bad things I have to say about this machine. I don't
think most people would go through the trouble I did in order to buy the
system. I believe it would be beneficial for Commodore to 1) vastly
increase its dealer base in the US, and 2) keep its dealer database up
to date, since calling 8 non-existent dealers does not give a very
professional image of the company.
HARDWARE:
The 4000 comes in a desktop style case, a bit smaller than an Amiga
2000. The keyboard is essentially identical to the 2000's keyboard, but
mouse is a more rounded "beetle" style mouse, instead of the more
angular 2000 mouse. The 4000 has a key and lock which can be used to
shut off all keyboard and mouse input to the machine (including the
C-A-A reboot combination, but not including the power switch). The
power switch is on the front, along with LEDs for power and the internal
HD.
UNPACKING AND SETTING UP:
This task went very quickly and painlessly. The system as shipped is
essentially ready to plug in and go - the operating system is already
installed on the hard drive, and the hard drive is configured for
booting. There was just one small glitch on my machine - on some early
4000s, the hard drive was formatted in the OFS ("Old FileSystem")
format, which is substantially slower than the newer FFS ("Fast
FileSystem"). From what I hear, Commodore has since corrected this
problem. It was not much trouble for me to reformat the hard drive and
reinstall the operating system. Although this isn't a recommended
approach, I got through it with no trouble without reading the
documentation, just by booting the install disk and clicking on things.
The OS install utility is quite user friendly and intuitive, and you can
pick what parts of the operating system you do and do not wish to
install.
One thing I noticed immediately is that the 4000 is a quiet machine. My
old 2000 is fairly loud, and the 4000 seems to be only about half as
loud when running. The hard drive is essentially silent, and only the
fan can be heard, but it is quieter than the 2000's fan.
INITIAL SYSTEM CONFIGURATION:
The operating system originally boots in 640x200 mode, similar to a 2000
or 500. However, the AGA ("Advanced Graphic Architecture") chipset in
the 4000 supports many other higher resolution modes. There are monitor
configuration files that control the resolution and scan rate of the
various graphic modes supported by the 4000. The Workbench screen can
be run on any of these and changed by a tool in the preferences drawer.
After some amount of fiddling, I settled upon the "SUPER72 Super High
Res Interlace" mode. On my system, this mode gives a solid display of
896x628 pixels (which I'll round to 900x630 for simplicity, although it
is a 4x2 pixels short of that in reality). The scan rate in this mode
is 25 KHz, which is enough faster than the 15 KHz interlace modes in the
2000 that it seems to eliminate flicker. However, this might depend a
little on lighting conditions. When I booted the system in this mode at
the dealer, I could detect a bit of interlace flicker, but when I tried
this mode at home, the display appears quite solid. With my anti-glare
screen on the monitor, I cannot detect any flicker in this mode at all,
unless I look very closely for it. It certainly seems to be a genuinely
usable mode, quite unlike 640x400 on non-flicker-fixed A2000's. In
order to display it, I had to adjust the vertical size knob on the
monitor.
WORKBENCH 3.0
The Amiga 4000 includes a new release of the Amiga operating system.
Release 3.0 includes support for the AGA chipset of the 4000. The AGA
chipset can support up to 256 directly accessible colors in any
resolution mode from a 24 bit palette, and up to 252,208 simultaneous
colors in "HAM8" mode. (HAM8 mode is excellenct for graphics
applications, but isn't suitable for word processing or textual
applications).
The Workbench 3.0 screen can be configured to any depth from 1 to 8
planes. Depending on your resolution mode and tolerance to update
rates, you may find that anywhere from 4 to 8 planes provides a suitably
fast environment. In my 900x630 workbench (actually a 1024x768 virtual
workbench displayed in a 900x630 physical display), I find the update
rate adequate at 5 or 6 planes (32 or 64 colors). Seven and 8 plane
displays can get slow at this high resolution, but they do better at
lower resolutions such as 640x400. In fact, when I was playing with
this system at the store, I compared the interactive performance of the
4000 to a nearby 386/33 machine running windows 3.1. Both machines were
running 8 plane displays at an identical resolution, and the Amiga was
quite a bit faster than the 386 for window updates. Although I didn't
time either one, here is my subjective impression of the speed of the
4000 user interface compared to several other systems I have used a
reasonable amount. The rating factor is "snappiness", whatever that
means. Remember, this is subjective, and compares things like moving
windows, scrolling scroll lists (which depends less on resolution), the
speed with which windows pop up, etc. So graphics performance isn't
directly correlated with this, and "tricks" of the OS, such as AmigaDos
3.0's method of only scrolling needed bitplanes for CLI windows, can
affect things:
System & UI approx system cost "snappiness" of UI
-------------------------------------------------------------------
Amiga 3000, 1 plane WB, 640x400 $1K-3K 2.0
Amiga 3000, 2 plane WB, 640x400 $1K-3K 1.0
Amiga 3000, 3 plane WB, 640x400 $1K-3K 0.7
Amiga 4000, 4 plane WB, 640x400 $3K-4K 2.5
Amiga 4000, 4 plane WB, 900x630 $3K-4K 1.5
Amiga 4000, 5 plane WB, 900x630 $3K-4K 0.8
Amiga 4000, 8 plane WB, 900x630 $3K-4K 0.6
80386/33 clone, Windows 3.1, 800x600x8 $1K-2K 0.3
HP 720 workstation, 8 plane, 1280x1024 $8K-12K 3.0
Workbench 3.0 supports the use of IFF images as backgrounds for both
the workbench screen, and workbench windows. I currentl