3270 emulator (n)~ Software that enables a microcomputer to act as a 3270 terminal. Emulator software can also enable a desktop computer to send print jobs from a host system to a printer connected to the microcomputer.

Explanation of "3270 Emulator"

A 3270 emulator is a type of software that allows a microcomputer or desktop computer to mimic the functions of a IBM 3270 terminal. The IBM 3270 terminal was a popular type of dumb terminal used in the 1970s and 1980s primarily for interacting with mainframe computers, such as IBM's large-scale systems. These terminals typically lacked processing power on their own and were used purely as input/output devices to access the host system.

A 3270 emulator serves as a modern solution to interface with systems that still rely on the IBM 3270 terminal protocol, enabling users to interact with legacy mainframe applications and services. This emulator software allows the microcomputer or desktop computer to act as if it were the original IBM 3270 terminal, without needing the physical hardware.

Key Functions of a 3270 Emulator:

1. Terminal Emulation:
   The primary function of a 3270 emulator is to replicate the behavior and functionality of the IBM 3270 terminal. This means the computer running the emulator can connect to and communicate with mainframe systems using the same protocols as the original 3270 terminals. The emulator provides a user interface that mimics the original text-based screens, allowing users to enter commands and interact with mainframe applications.

2. Connectivity with Host Systems:
   The 3270 emulator connects to host systems, typically mainframe computers or minicomputers, through a network connection (such as TCP/IP). This connection allows the user to access legacy applications, databases, and services that were originally designed to run on mainframes with IBM 3270 terminals.

3. Printing Support:
   In addition to terminal emulation, some 3270 emulators can also facilitate printing. They enable the desktop computer to send print jobs from the host mainframe system to a printer connected to the microcomputer. This is especially useful when working with mainframe-based applications that generate printed reports or documents but need a modern interface to direct print output to a local printer.

4. Compatibility and Customization:
   Modern 3270 emulators are often compatible with a variety of host systems and can be customized to match the unique configurations and screen layouts of specific mainframe applications. Some emulators allow users to save session configurations, adjust the appearance of the terminal interface, and use advanced features like scripting and automation for more efficient interactions with the host system.

Common Use Cases:

• Accessing Legacy Applications: Organizations that still rely on mainframe computing or legacy systems often use 3270 emulators to allow modern computers to access these older applications without needing to maintain the outdated hardware.

• Mainframe System Administration: IT professionals use 3270 emulators to remotely manage and interact with mainframe systems, including performing administrative tasks and monitoring performance.

• Printing and Report Generation: Many large organizations use mainframe systems for running critical business applications. The ability to direct print jobs from these systems to local or networked printers via the 3270 emulator helps streamline operations and reduce reliance on older hardware.

Popular 3270 Emulators:

Several well-known 3270 emulators are available today, including:

• Attachmate Extra!
• IBM Personal Communications
• Hummingbird Exceed
• RUMBA 3270
  These emulators offer a variety of features, including enhanced user interfaces, file transfer capabilities, and multi-session support.

Summary:

A 3270 emulator allows modern microcomputers and desktops to emulate the functionality of IBM 3270 terminals, enabling access to legacy mainframe applications and the ability to print output from the host system. These emulators provide a crucial link for businesses and organizations that continue to rely on mainframe computing.

The above information is provided as general reference material and should not be taken as specific advice. For accurate analysis and professional guidance tailored to your specific situation, please consult an expert in the relevant field.