IBM PCradio

IBM PCradio

Company type	Product
Industry	Computer hardware, Wireless communications
Founded	1991 (1991)
Founder	Robert A. Lundy (project director)
Headquarters	Boca Raton , United States
Key people	Robert A. Lundy (director and general manager of wireless business unit), Robert R. Daly (product manager)
Products	PCradio notebook computer
Parent	IBM Industry Products Group

The PCradio was a notebook computer introduced by IBM in late 1991 and has since been discontinued. Designed primarily for mobile professionals such as service technicians, sales representatives, and public safety personnel, the device featured a rugged construction and omitted an internal hard disk drive. It came equipped with cellular or ARDIS RF modems in addition to a conventional landline modem.

Components

Housed within a slate-gray, durable plastic casing that resisted heat, moisture, impacts, and chemicals, the PCradio incorporated sealed port covers, connectors, and a keyboard protected by gaskets to ensure water resistance. The unit featured a monochrome Liquid-crystal display capable of displaying Color Graphics Adapter graphics and text arranged in 80 columns by 25 lines. Power was supplied either through nickel–cadmium batteries or adapters for wall and car outlets.

To enhance robustness, IBM utilized SRAM modules with capacities up to 2 MB for storage instead of traditional mechanical drives. The PCradio shipped with ROM-based software including customized editions of Siega System's One-Button Mail e-mail client, Traveling Software's Battery Watch utility for battery management, and LapLink file transfer software (rebranded as Notebook Manager), all optimized with drivers specific to the PCradio’s hardware. The device operated reliably within temperature ranges from 32°F to 132°F. An optional thermal printer supported paper rolls measuring 3-1/8 inches in diameter.

The cellular variant offered fax transmission speeds up to 9.6 KB/s—twice the data transfer rate of 4.8 KB/s—and was capable of receiving faxes as well. In contrast, the landline model could send faxes but lacked reception capability, while the ARDIS version did not support fax functions. Additionally, an optional handset accessory allowed voice calls on the cellular model.

Development

The PCradio initiative was overseen by Robert A. Lundy, who served as director and general manager of IBM's wireless business unit within the Industry Products Group located in Boca Raton, Florida. Beginning in 1989, the development team consisted of 25 members including Lundy himself and collaborated with Vadem, an original design manufacturer based in San Jose, California. IBM allocated roughly $50 million toward the project’s development. Production took place at IBM plants in North Carolina and Scotland, while cellular modems were manufactured by Novatel Communications in Alberta and Toronto. The ARDIS modems were engineered by Motorola in Richmond, British Columbia; their low power requirements contributed to extended battery life for the PCradio.

Before receiving FCC approval in December 1991, McCaw Cellular became the initial carrier for the cellular version of the PCradio. Subsequent coverage expanded through carriers operated by Regional Bell Operating Companies such as BellSouth.

Reception

Market analysts forecasted significant demand for the PCradio and comparable digital wireless gadgets, with IBM seeking to emulate its early 1980s achievements in the personal computing sector. Robert R. Daly, the product manager, anticipated sales reaching as high as 100,000 units within a two-year timeframe; however, by August 1994, fewer than 10,000 units had been sold. Initial users included Sears technicians in California who relied on PCradios for updating parts information until they transitioned to Itronix devices in 1994. Additionally, several U.S. law enforcement agencies and emergency responders incorporated the device into their operations—for instance, the Baltimore Police Department used it for confidential communication and reporting incidents.

IBM ceased production of the PCradio on August 13, 1993. A year later, in August 1994, remaining inventory and manufacturing equipment were acquired by Aspen Marine Group based in West Palm Beach, Florida. Aspen rebranded the unsold units under its Aptek label, targeting the same customer base. Concurrently, IBM unveiled the Simon PDA, which operated via BellSouth cellular networks and featured capabilities such as telephone calls and Internet connectivity.

Models

PCradio

IBM P/N	Processor	Clock speed	RAM	Communications method	Communications speed	Fax capability and speed
9075-001	Intel 80C186	5–10 MHz	640 KB	Landline	2.4 KB/sec	Yes (sending only), 2.4 KB/sec
9075-002				ARDIS	4.8 KB/sec	No
9075-003				Cellular	4.8 KB/sec	Yes (sending and receiving), 9.6 KB/sec

Features and accessories

Feature	IBM P/N
0.5 MB SRAM storage	04G1470
0.5 MB ROM	04G1472
2.0 MB ROM	04G1473
Combination 0.5 MB SRAM/0.5 MB ROM	04G1474
Combination 1.0 MB SRAM/0.5 MB ROM	04G1475
40-column thermal printer	92F1132
Breakout box	92F1131
Model 001 to 002 conversion kit	92F1148
Model 001 to 003 conversion kit	92F1149
Ni-Cd battery pack	92F1135
AC adapter	92F1145
Telephone cable, 6-ft	92F1138
DC car charger	92F1146
Carrying case	92F1140
Cellular telephone handset	92F1134
Carrying strap	92F1142

External links

• PCradio demonstration presented by IBM employee Gary Doolittle on Computer Chronicles (1991)
• Demonstration and partial teardown of a PCradio (2017)