3770Link

Software Installation

The following steps describe how to install the 3770Link demo on a hard disk from the distribution diskette:

Insert the 3770Link diskette into a floppy drive.

For Windows NT 3.51:

From the File menu in Program Manager, choose Run. Type a:setup and press <Enter> or click [OK].

For Windows 95/98 and NT 4.0:

Choose the “Add/Remove Programs” option from the Control Panel.

This runs the 3770Link demo installation program. This program is straight-forward and you just fill in the blanks.

See the sections below on running 3770Link GUI and 3770Link SO.

Media and Files

The Windows 95, Windows 98, and Windows NT demo versions of 3770Link are shipped on a single diskette. The following files are copied to your hard drive when you install the demo:

3770LINK.EXE

3770Link GUI demo program

3770SO.EXE

3770Link SO demo program

SAMPLE1.S

Sample script file

SAMPLE2.S

Sample script file

CONNECT.S

Sample master connect script file

SERVER.S

Script file used to create a 3770 server

3770LINK.INI

Configuration file for this demo

FORMS.INI

Configuration file for this demo

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IBM 3770 manual Software Installation, Media and Files

3770 specifications

The IBM 3770, introduced in the mid-1970s, was a pioneering multi-user data station known for its innovative design and functionality, aimed primarily at supporting online transaction processing. As one of the early efforts in integrating computers with communication technology, the 3770 set a foundation for subsequent advancements in the field.

One of the standout features of the IBM 3770 was its ability to support multiple user connections simultaneously. This multi-user capability allowed organizations to connect various terminals to a central computer, facilitating efficient data entry and retrieval processes. Each terminal could communicate with the mainframe, enabling users to access real-time data and execute transactions concurrently, which was revolutionary for its time.

The 3770 utilized a proprietary communication protocol that leveraged synchronous serial communication, ensuring reliable data transmission over telephone lines and enabling the automation of remote data entry. This technology reduced the need for physical interaction with centralized data processing systems, leading to increased productivity and efficiency in organizational workflows.

In terms of characteristics, the IBM 3770 was equipped with a dedicated processor for handling input and output operations. This feature offloaded routine tasks from the mainframe, optimizing overall performance and freeing up computational resources for more intensive processing activities. Additionally, the system was designed to support a variety of input devices, including keyboards and card readers, accommodating different user preferences and operational needs.

The architecture of the IBM 3770 included a unique data format that streamlined the handling of transactions. This format allowed for easy integration with existing databases and applications, making it an attractive solution for businesses looking to modernize their data processing capabilities. The system also featured built-in error detection and correction routines, which ensured data integrity during transmission.

Moreover, the IBM 3770 was recognized for its flexibility and scalability. Organizations could easily expand their networks by adding more terminals or connecting additional mainframe storage. This scalability was crucial for businesses experiencing growth, as it eliminated the need for frequent system overhauls.

In summary, the IBM 3770 was more than just a data station; it was a significant step forward in online transaction processing, combining innovative communication technologies with multi-user functionality. Its features, such as dedicated processing, support for various input devices, and scalability, set the stage for future advancements in data systems and remain influential in shaping the landscape of computing.