PowerBook 500 series


The PowerBook 500 series is a range of Apple Macintosh PowerBook portable computers first introduced by Apple Computer with the 540c model on May 16, 1994. It was the first to have stereo speakers, a trackpad, and Ethernet networking built-in.
It was the first PowerBook series to use a Motorola 68LC040 CPU and be upgradeable to the PowerPC architecture via a swap-out CPU daughter card, use 9.5-inch Dual Scan passive color/B&W displays, 16-bit stereo sound with stereo speakers, have an expansion bay, PC Card capability, two battery bays, full-size keyboard with F1–F12 function keys, be able to sleep while connected to an external monitor and have a battery contact cover included on the actual batteries. It included a single serial port which could be to connect to a serial printer or a network via Apple's LocalTalk. In another first, it also included an AAUI port for connecting to Ethernet networks.
The 500 series was discontinued completely with the introduction of the ill-fated PowerBook 5300. The PowerBook 190 was the de facto successor to the 500 and continued the only 68LC040 processor offering as the low end of the PowerPC-based PowerBook family.
In a survey taken in November 2000, Insanely Great Macintosh ranked the 540c No. 2 on its list of the all-time best PowerBook models made.

History

The PowerBook 500 series was introduced on May 16, 1994, with the high-end active matrix LCD PowerBook 540c and 540, with the passive matrix 520c and 520 soon after. One of its marketing highlights was the promise of a PowerPC upgrade to its CPU and PC Card expansion. The introduction of this model came at the time of Apple's changeover to the new PowerPC chip from the 68k line of CPUs, and Apple's advertising and promise of the PowerPC was the cause of headaches to the company. The strong demand for its ground-breaking design and Apple's incorrect market prediction that customers would wait for the fully PowerPC PowerBooks resulted in shortages early on.
In due course the 540 was dropped from the line, 8 MB of additional memory and the modem was offered installed from the factory, hard drive capacity was increased, and the installed system upped from System 7.1.1 to 7.5. The PC Card Cage was also released, allowing Macintosh users to add PCMCIA capability to their laptops for the first time.
In 1995, Apple gave permission for Apple Japan to introduce an updated version, called the 550c, with a bigger display, CPU with FPU, bigger hard drive, and Japanese keyboard with black case. It was only sold in Japan and never received FCC certification.
With delays for the new PowerPC PowerBook 5300, demand for the PPC upgrade mounted, and Newer Technology began to market the upgrade before Apple did, although they had produced the upgrade modules for Apple first. What's more, they offered 117 MHz versions over Apple's 100 MHz offering. Soon thereafter, Newer Technology introduced a 167 MHz model that outperformed the fastest PowerBook 5300, the $6,800 5300ce, at a time when problems with that line became a real issue to Apple.
About the time Apple introduced the PowerBook 1400, Newer Technology introduced a 183 MHz upgrade with 128 KB of L2 cache that kept it ahead of the power curve in performance. Newer Technology stated they could not produce more of the 183 MHz upgrades because the supply of connectors was exhausted.

Impact on the industry

This laptop was the first in the industry to include:
And among Apple's PowerBook line the first to have:

Variations across the range

Although the 500 "Blackbird" prototypes were black, only one of the five production models was completely black; that was the 550c, sold only in Japan. The 550c differed from the four two-tone grey models in a few other key respects as well, including a larger active-matrix color screen, a combined Roman/Kanji keyboard, and a full 68040 processor. The other models were all charcoal grey with darker grey trim, came with a variety of displays, and used the 68LC040 processor. The full-sized keyboard with 12 function keys, and 640×480 resolution display was consistent across the family.

Optional internal modem

The modem was developed with Global Village, and is a unique two-part design. The transceiver with the modem connector is installed in the back, and the modem itself is located next to the CPU daughter card. It was a V.32 Terbo, and had a top rate of 19.2 kbit/s, but only with other V.32 Terbo modems as there was no official standard. Otherwise it would drop down to 14.4 kbit/s.
Due to a bug with the new combined printer/modem port, the driver had to be upgraded to 2.5.5, and the Chooser was replaced in the GV install.

Expansion bay

The 500 series of PowerBooks included the ability to use two batteries at the same time, allowing for 4 hours of battery life from two installed charged batteries. However the left battery also had an internal PDS slot that allowed for custom modules to be installed. Despite prototypes having been made, only two devices reached the market.

PCMCIA "card cage"

One is the PCMCIA module. There were three versions; RevA, RevB and RevC. The RevC is the most useful as it can take 16bit WiFi cards, allowing the possibility to get a Powerbook 5xx connected online or in the home network using a technology that was developed after the Powerbook 5xxs were discontinued by Apple. The different revisions of the PCMCIA module were released by Apple to accommodate the developing PCMCIA standard. These modules are difficult to find, and the RevC module is in particular demand because it alone works with 16-bit WiFi cards.
PC Card cage, 16-bit, 2 Type I/II or 1 Type III cards, using a 68000 CPU to convert the PC Card protocol to PDS.

FPU co-processor

The other is the FPU co-processor, to make up for the lack of one in the PowerBook's 68LC040 CPU.
The FPU module uses a 68882 FPU co-processor made by Sonnet.

Production

In total, almost 600,000 PowerBook 500 series units were produced, compared to 300,000 PowerBook 5300 units.

Models

Video display support

CPU upgrades

Legacy

Most laptops had grayscale displays, mono speakers with only 8-bit audio out, and insufficient battery life, and some had side-mounted snap-on track balls. With the built-in Ethernet, SCSI port and ADB, it had all the features of desktops at that time, making them the first viable desktop replacement laptops.