APPLE POWER BOOK 520 SERIES. 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 (simultaneous with Duo 280) and be upgradeable to the PowerPC architecture via a swap-out CPU daughter card (with the PowerPC and 68040 upgrades for sale), 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 (and a ten-minute sleep/clock battery, which allowed for main batteries to be swapped out while in sleep mode), full-size keyboard with F1F12 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 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 (PCMCIA) 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. 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 (from 160 and 240 to 320 and 500 MB), 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 (10.4 inches), CPU with FPU (68040), bigger hard drive, and Japanese keyboard with black case. With delays in 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 (actually, 99) MHz offering. 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. Condition on the photo BARGAIN PRICE. THERE WILL FIND UNIQUE TREASURES If you have questions, please write or call. The item "VINTAGE LAPTOP APPLE POWER BOOK 520 SERIES MUSEUM CONDITION 1994s RARE ON EBAY" is in sale since Monday, March 8, 2021.
This item is in the category "Computers/Tablets & Networking\Vintage Computing\Vintage Manuals & Merchandise". The seller is "baylandero" and is located in Hounslow. This item can be shipped to United Kingdom, United States, Antigua and barbuda, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, Bahrain, Canada, Japan, New Zealand, China, Israel, Hong Kong, Norway, Indonesia, Malaysia, Mexico, Singapore, South Korea, Switzerland, Taiwan, Thailand, Bangladesh, Belize, Bermuda, Bolivia, Barbados, Brunei darussalam, Cayman islands, Dominica, Egypt, Guernsey, Gibraltar, Guadeloupe, Grenada, French guiana, Iceland, Jersey, Jordan, Cambodia, Saint kitts and nevis, Saint lucia, Liechtenstein, Sri lanka, Macao, Monaco, Maldives, Montserrat, Martinique, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Turks and caicos islands, Aruba, Saudi arabia, South africa, United arab emirates, Ukraine, Chile, Bahamas, Colombia, Costa rica, Guatemala, Honduras, Jamaica, Kuwait, Panama, Philippines, Qatar, Trinidad and tobago, Uruguay.