Radio Shack System 350 owner manual 43-991A.fm Page 10 Tuesday, December 28, 1999 759 AM

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43-991A.fm Page 10 Tuesday, December 28, 1999 7:59 AM

•When replacing the batteries, have fresh ones on hand before you begin. If you do not install the new batteries within about 2 minutes after removing the old ones, you will lose all the information stored in the system.

1.Make sure the system is unplugged from the telephone line and AC power.

2.If you are replacing the batteries, unplug both modular line cords from the back of the system.

3.Use a Phillips screwdriver to remove the screw in the bat- tery compartment cover.

4.Slide the battery compart-

ment cover toward the back of the system until it stops, then lift open the cover.

Caution: The battery com- partment cover is attached to the system. Do not try to remove it completely.

5. Put four fresh AAA batteries into the compartment as indi- cated by the polarity symbols (+ and –) marked inside.

6.Close the cover and secure it with the screw. If you are replacing the batteries, recon- nect the phone line, AC adapter, and the phone.

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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 Installing Batteries Preparation43-991A.fm Page 10 Tuesday, December 28, 1999 759 AM Connecting the AC Adapter Connecting to a Single-Line Phone Connecting the SystemConnecting to a Two-Line Phone Triplex TelephoneAdapter System Line Jack Phone Jack Connecting to an Answering MachineMounting the System To PhoneAttaching the Mounting Bracket Mounting on a WallKeyhole Slots Adjusting the Display Contrast Choosing a LanguageReceiving and Storing Calls OperationReviewing Call Records Review Displayed Call Information Display English Description French SpanishBlocked Name Deleting a Single Call Deleting CallsDeleting All Calls VIP Call List Message Waiting Troubleshooting Problem SolutionCare and Maintenance FCC Wants YOU to KnowLightning 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.
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