Macintosh Centris 650 (1993)

The Macintosh Centris 650 has the distinction of being Apple’s Macintosh product with the shortest lifespan (along with the Centris 610). The Centris 650 and 610 were introduced on February 10, 1993, and discontinued on October 21, 1993—a lifespan of only 253 days. The short life resulted from a technicality when Apple made the decision in late 1993 to follow a new naming scheme for all their products: “Quadra” for business, “LC” for education, and “Performa” for home. As a result of the name change, the Macintosh Centris 650 became the Macintosh Quadra 650.

The Centris computers were introduced as Apple’s midrange offerings in 1993 as replacements to the Macintosh IIci and Quadra 700. The Centris 650 used a Motorola 25MHz 68040 or 68LC040 chip and could run System 7.1, up through and including Mac OS 8.1 (without a PowerPC upgrade).

The Centris 650 includes onboard video with VGA support via an adapter, 3 NuBus slots, two ADB ports, two serial ports, an external SCSI connector, and a 5.25-inch drive bay. This was one of the earliest Macintosh computers to be available with an internal CD-ROM drive (an AppleCD 300i model).

According to MacWorld in April 1993, five configurations were available:

  • 25 MHz 68LC040, 4 MB RAM (on board), 512 KB VRAM, 80 MB HDD, no Ethernet
  • 25 MHz 68040, 8 MB RAM (on board), 512 KB VRAM, 80 MB HDD, Ethernet
  • 25 MHz 68040, 8 MB RAM (on board), 512 KB VRAM, 230 MB HDD, Ethernet
  • 25 MHz 68040, 8 MB RAM (on board), 1 MB VRAM, 230 MB HDD, Ethernet, AppleCD 300i and microphone
  • 25 MHz 68040, 24 MB RAM (including 8 MB on board), 1 MB VRAM, 500 MB HDD, Ethernet

Sources: Wikipedia, Low End Mac (naming, specs), MacWorld (via Internet Archive)

Power Mac G4 (1.25 GHz, “mirrored drive doors,” 2003)

The Power Macintosh G4/1.25 GHz “Mirrored Drive Doors” tower used a 1.25 GHz PowerPC 7455 G4 processor, 256 MB RAM, an 80 GB hard drive, a 12X DVD-ROM/CD-RW “Combo” drive, and allowed wireless using an optional AirPort (802.11b) card. This model was released along with new Power Macintosh G5 models to provide a lower-cost alternative for users who did not need the power of the G5 and still wanted to boot with the MacOS 9 operating system.

While similar to the previous “Quicksilver” model, the front of this tower retains the silver opaque color, but adds a mirror-finished plate over the two available optical drive doors in the center. Although two drive spaces are available, this example only uses one “Combo” (CD/DVD reader/writer) drive in the top position. The prominent drive doors also include the power button at the top-center and an “interrupt” button off to the right. A single speaker is placed above the doors. Four conspicuous ventilation holes span the bottom of the front of this tower.

The back of the tower was flipped compared to previous similar tower designs (G3 blue and white, G4 graphite, and G4 Quicksilver), in that the expansion slots are placed at the top. This tower has spaces for five slots, but only uses slot 1 (at the bottom) to house a VGA port and ADC (proprietary Apple Display Connector) port; slots 2–5 are unused. Ports are included below with two USB, two FireWire (400), one ethernet, a space for a modem port, and side-by-side microphone (line-in)/speaker (audio-out) 3.5 mm jacks. A dedicated Apple speaker port is included to allow Apple’s crystal-clear spherical speakers to be used.

The right side of the tower included a latch with a circular rubberized grip that allowed the entire side of the tower to be opened on a hinge, revealing and providing relatively easy access to all internal components. Plug-in slots (such as video, memory, and wireless) were attached to the hinged side, while components such as drives and fans remained attached to the internal metal frame of the tower.

A design concept worth noting in this tower is its two-layer round-hole pattern on the back. The internal layer features smaller, closely spaced holes in silver metal, while the larger outer holes are spaced further apart in light-silver plastic. The concept is similar to the somewhat-maligned “cheese grater” design used in the 2019 Mac Pro tower. The 2019 Mac Pro uses a “machined spherical array” of ventilation holes in a distinctive design—”The lattice pattern on the Mac Pro is based on a naturally occurring phenomenon in molecular crystal structures.” To be clear, the 2019 design is a single piece of machined metal—not two separate layers—but the designs are related visually. In both the 2003 and 2019 towers, the holes are used simultaneously as design, structure, and ventilation.

Source: Everymac, Apple

Power Mac G4 (1.0 GHz, “Quicksilver,” 2002)

The Power Macintosh G4/1.0 GHz was nicknamed “Quicksilver” because of its new silver color and its significant speed upgrades from the previous graphite G4 model. Internally, it included dual 1.0 GHz PowerPC 7450 (or 7455) G4 processors, 512 MB RAM, an 80 GB hard drive, and a wireless connection was available with the addition of an optional AirPort (802.11b) card. A few Quicksilver models were available with different levels of processors, drive capacities, and RAM options.

The front of the Power Macintosh G4 “Quicksilver” was opaque silver (replacing translucent plastics of previous designs). The top included spaces for two optical drives. This example includes a DVD-ROM drive in the top space and no device in the lower space. Below the optical drives was the power button, and two additional smaller buttons—reset and “interrupt” buttons—both used to recover from system-level issues. The bottom-center features a prominent chrome-finished speaker (without a protective grille).

The ports on the back included stacked headphone and line-out speaker 3.5 mm jacks; a modem (telephone) port; one ethernet port; two FireWire (400) ports; and two USB ports. Five slots were also available. This model included slot 1 with a standard VGA port and a proprietary ADC (Apple Display Connector) port, while slots 2–5 are unused.

The right side of the tower included a latch with a circular rubberized grip that allowed the entire side of the tower to be opened on a hinge, revealing and providing relatively easy access to all internal components. Plug-in slots (such as video, memory, and wireless) were attached to the hinged side, while components such as drives and fans remained attached to the internal metal frame of the tower.

The four corners of this tower serve as feet and/or handles. They are cast in crystal clear acrylic.

Source: Everymac

Macintosh Server G4 (500 MHz, 1999)

The Macintosh Server G4/500 was designed similarly as its G3 blue and white predecessor, but used a translucent graphite and white case. Internally, it had a 500 MHz PowerPC 7400 G4 processor, 256 MB RAM (512 GB RAM maximum), an 18.0 GB (or 36.0 GB) hard drive, a 5X DVD-ROM drive, and a Rage 128 Pro graphics card. This server is identical to the Power Macintosh G4 series tower, but included faster hard drives, more RAM, and shipped with a server operating system. The two Apple server operating systems of the time included MacOS 8.6 with AppleShare IP 6.3.1 and MacOS X Server.

The front of the Macintosh Server G4 was translucent graphite (gray) with an underlying pinstripe pattern. The top included spaces for two optical drives. This example includes a DVD-ROM drive and no device in the lower available space. Below the optical drives was a speaker, the power button, and two additional smaller buttons—reset and “interrupt” buttons—both used to recover from system-level issues.

The back of the tower included all ports: two FireWire (400) ports, one ethernet port, two USB ports, and stacked 3.5 mm microphone (audio-in) and audio-out jacks. A space for a modem port is included, but unused in this example. Four slots were also available. This model includes slot 1 with a standard VGA port and a DVI port; slot 2 with a high-speed SCSI (LVD/SE) port; while slots 3 and 4 are unused.

The right side of the tower included a latch with a circular rubberized grip that allowed the entire side of the tower to be opened on a hinge, revealing and providing relatively easy access to all internal components. Plug-in slots (such as video, memory, and wireless) were attached to the hinged side, while components such as drives and fans remained attached to the internal metal frame of the tower.

This Macintosh Server G4 includes three internal hard drives.

Source: Everymac

Power Macintosh G3 (300 MHz, “Blue & White,” 1999)

The Power Macintosh G3 was the first new tower desktop to be released after the original iMac in 1998. The iMac at the time was originally released in “Bondi” blue—a translucent blue-green hue reminiscent of the waters off Bondi beach in Australia—that was replaced in 1999 with a brighter translucent set of colors including a shade of blue called “blueberry.” The Power Macintosh G3 was closer in color to the blueberry iMac, but it was not an exact match.

The Power Macintosh G3 was known as the “blue and white” tower. The tower used a translucent white outer case on both sides and featured both a glossy, translucent blue Apple logo and the characters G3 boldy printed under the frosted white translucent plastic to achieve a blurred, shadowy effect.

The front of the Power Macintosh G3 was translucent blue with an underlying pinstripe pattern. The top of the front included spaces for two optical drives. This example includes a CD-ROM and a Zip drive (from the company Iomega). Below the media drives was a speaker, the power button, and two additional smaller buttons—reset and “interrupt” buttons—both used to recover from system-level issues.

The back of the tower included ports, including two FireWire (400) ports, one ADB port, one ethernet port, two USB ports, and side-by-side 3.5 mm microphone (audio-in) and audio-out ports. A space for a modem port is included, but unused in this example. Four slots were also available. This model includes slot 1 with a standard VGA port, slot 2 with AV ports including a DB-15 (“Mac Video”) port, two S-video, and one yellow video-in RCA port. Slots 3 and 4 are unused.

The port choices represent an interesting mix of legacy and brand new technology. While the desktop was the first to include FireWire 400 ports, it also included the then-new USB standard, but curiously included one then-outdated ADB port. The slots below show a similar mix of old and new: VGA and the old-style “Mac Video” DB-15 port. Thus, while the iMac was only looking forward, this tower allowed old and new peripherals to be used.

The right side of the tower included a latch with a circular rubberized grip that allowed the entire side of the tower to be opened on a hinge, revealing and providing relatively easy access to all internal components. Plug-in slots (such as video and memory) were attached to the hinged side, while components such as drives and fans remained attached to the internal metal frame of the tower.

Internally, this Power Macintosh G3 uses a 300 MHz PowerPC 750 G3 processor, 64 MB of RAM, a 6 GB hard drive, a 32X CD-ROM drive, and an ATI Rage graphics card. The hard drive was a faster, server-grade Ultra ATA/33 model when iMac computers of the time included IDE/ATA hard drives.

A highly specious rumor of the time noted that the design of this tower included a Disney reference. When viewed sideways, a Mickey Mouse ears shape can be seen in the negative space between the “bite” in the Apple logo and the inside of the Helvetica Bold “3” in the “G3” logo on the sides of this tower. The conspiracy theory speculated that Disney was contemplating the purchase of Apple.

I used versions of this blue and white tower in two of my educational technology leadership positions. In both cases, I used this tower to create videos and other multimedia using early versions of iMovie and other multimedia creation software.

Source: Everymac

Mini-DVI to VGA adapter

Beginning in 2005, Apple released several computers with a Mini-DVI port, including the 12-inch PowerBook G4, Intel-based iMac, the MacBook Intel-based laptop, the Intel-based Xserve, the 2009 Mac mini, and some late model eMac computers.

The port was used until 2008 when it was replaced with the Mini DisplayPort. This adapter allows a Mac with a Mini-DVI port to be connected to a VGA display.

Sources: EveryMac, Wikipedia

Macintosh Display (DA-15) to VGA Adapters (platinum, clear, and black)

During the 1990s when Apple produced external CRT displays, they built DB-15 video ports into Macintosh computers. Product manuals of the time referred to the port as the “Macintosh video port” and in the later 1990s, the “Monitor port.”

An Apple Service Source document for the Power Macintosh/Server G3 Minitower shows the port in a diagram labeled as the “Monitor Port.”

I have three different versions of this adapter that allows a Macintosh with this DB-15 monitor port to be used with a “standard” VGA monitor. The three versions I have are platinum, clear, and black. The black example is unopened. All three designs have the Apple logo.

Source: Apple

Apple Video Card Accessory (DA-15)

During the 1990s when Apple first entered the external display market, they used the DB-15 video port. Product manuals of the time referred to the port as the “Macintosh video port” or later, the “Monitor port.”

An Apple Service Source document for the Macintosh LC Series/Quadra 605 (Macintosh LC, Macintosh LC II, Macintosh LC III, Macintosh LC 475, Macintosh Quadra 605) specifies the video standard as: “DB-15 monitor port for built-in video; DA-15 connector.”

This Apple Video Card Accessory (part number 513-0091-A) allowed “standard” VGA monitor to be used with a Macintosh computer.

Source: Apple

DVI to VGA Adapter (2005)

Apple’s DVI to VGA Adapter shipped with the original Mac mini (2005). Because the original Mac mini Video out port was designed for displays that use a DVI connector, the computer also shipped with this compact DVI to VGA Adapter. This adapter allowed the Mac mini to work with a then-standard VGA display.

Source: Apple, EveryMac

iPhone 4 (2010)

The iPhone 4 represented a major design leap from the previous models with an all stainless steel body, a 3.5-inch Retina display at 960×640 (326 ppi), a chemically hardened “aluminosilcate” over the front display, and the chemically hardened black glass back. A white option was announced, but did not ship for over a year after the announcement.

The iPhone 4 was the first iPhone with dual front and back cameras: a 5 megapixel HD video/still camera (720p at 30 FPS), a 5X digital zoom, and an LED flash on the rear; and a VGA-quality video/still camera on the front designed for video conferencing over Wi-Fi using FaceTime. Both cameras used noise-cancelling microphones.

The iPhone 4 was powered by an A4 processor and added additional mobile network support. It included a digital compass, GPS, an accelerometer, and a new 3-axis gyroscope.

Source: EveryMac.com