Radio Shack System 350 owner manual Connecting the AC Adapter

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43-991A.fm Page 11 Tuesday, December 28, 1999 7:59 AM

When BATT (battery) appears or the display dims, replace the batteries.

Cautions:

Always remove old or weak batteries. Batteries can leak chemicals that can damage your system.

Dispose of dead batteries promptly and properly. Do not bury or burn them.

CONNECTING THE AC ADAPTER

To power the system, plug the adapter’s barrel plug into the 9V DC 200mA jack on the back of the system. Then connect the other end of the adapter to a standard AC outlet.

Caution: The supplied adapter was designed specifically for your system. Use only the supplied adapter.

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Contents System 43-991A.fm Page 2 Tuesday, December 28, 1999 759 AM Features 43-991A.fm Page 4 Tuesday, December 28, 1999 759 AM Important Information FCC Information 43-991A.fm Page 7 Tuesday, December 28, 1999 759 AM Contents Preparation Installing Batteries43-991A.fm Page 10 Tuesday, December 28, 1999 759 AM Connecting the AC Adapter Connecting to a Two-Line Phone Connecting the SystemConnecting to a Single-Line Phone Adapter System TelephoneTriplex To Phone Connecting to an Answering MachineMounting the System Line Jack Phone JackMounting on a Wall Attaching the Mounting BracketKeyhole Slots Choosing a Language Adjusting the Display ContrastReviewing Call Records OperationReceiving and Storing Calls Review Display English Description French Spanish Displayed Call InformationBlocked Name Deleting All Calls Deleting CallsDeleting a Single Call VIP Call List Message Waiting Problem Solution TroubleshootingFCC Wants YOU to Know Care and MaintenanceLightning RadioShack Division of Tandy Corporation Fort Worth, Texas

System 350 specifications

The Radio Shack System 350, introduced in the mid-1980s, represents a significant milestone in personal computing, combining a blend of innovative features, robust technology, and user-friendly characteristics. Designed primarily for educational and business applications, the System 350 marked a notable entry point for many users into the world of computing.

One of the standout features of the System 350 was its use of MS-DOS, an operating system that provided a familiar interface for a multitude of software applications. This characteristic allowed it to run a wide range of productivity tools, from word processors to spreadsheet programs, greatly enhancing its appeal to both students and professionals.

The System 350 was powered by an Intel 8088 microprocessor, which operated at a speed of 4.77 MHz. This architecture provided sufficient processing power for its target applications, enabling users to execute tasks efficiently within the confines of its pre-DOS graphical interface.

Memory capacity was another defining aspect. The base model typically came with 64 KB of RAM, expandable up to 640 KB, allowing users to store data and run larger programs. Storage needs were met by a 5.25-inch floppy disk drive, which became a standard for software distribution in that era, supporting the storage of files and applications.

In terms of display, the System 350 typically featured a CGA-compatible monitor that supported a resolution of 640 x 200 pixels in color mode. This allowed users to operate graphical applications while still maintaining clarity and readability on the screen.

The machine was equipped with several expansion slots, facilitating upgrades and hardware enhancements, which included additional memory and even improved graphics capabilities. This expandability made the System 350 a flexible option for users looking to adapt their system to evolving technological needs.

Connectivity options were also notable, supporting connections to printers and modems. This capability empowered users to print documents and communicate electronically, establishing a foundational way for early personal computers to interface with other devices.

In summary, the Radio Shack System 350 was a pioneering personal computer featuring an MS-DOS operating system, powered by an Intel 8088 processor. Its expandable memory, floppy disk storage, CGA display, and connectivity options positioned it as an accessible and versatile tool for both educational and business environments. As technology continued to evolve, the System 350 played a vital role in the personal computing revolution of its time.