1. Deployment Approach: Ansible is a configuration management tool that automates the process of deployment and management of software applications. On the other hand, Atom is a versatile text editor primarily focused on providing a customizable and user-friendly interface for developers. While Ansible is geared towards automating server configuration and application deployment, Atom is designed to enhance coding efficiency and provide a seamless editing experience.

2. Programming Languages: Ansible is mainly written in Python and uses YAML for defining configuration files, making it easier for system administrators to understand and modify playbooks. In contrast, Atom is built using web technologies such as HTML, JavaScript, and CSS, providing a flexible platform for developers to customize their editing environment with various packages and themes. This difference in programming languages used reflects the intended audience and primary functionality of each tool.

3. Integration Capabilities: Ansible excels in integrating with various infrastructure components, cloud services, and network devices through supported modules, plugins, and playbooks. Atom, on the other hand, offers extensive integration with version control systems like Git, project management tools, and a wide range of programming languages through its vast library of packages and extensions. This difference highlights the distinct purposes of Ansible in system automation and Atom in code editing and collaboration.

4. Community Support: Ansible benefits from a large and active community of users, developers, and contributors who continuously enhance the tool's functionality, provide support, and share best practices. Atom also has a vibrant community that contributes to the development of packages, themes, and enhancements, catering to the evolving needs of developers across different domains. The level and nature of community support for Ansible and Atom may influence the user experience and adoption of these tools.

5. Workflow Complexity: Ansible simplifies complex IT workflows by enabling declarative configuration management, idempotent execution, and orchestration of tasks across multiple servers or devices. In contrast, Atom offers a sophisticated yet straightforward workflow for coding, debugging, and collaborating on projects, with features like split panes, intelligent autocompletion, and customizable keyboard shortcuts. The varying complexities of workflow supported by Ansible and Atom cater to different aspects of software development and system administration.

6. Scalability and Extensibility: Ansible provides scalability through its agentless architecture and ability to manage thousands of nodes from a single control server efficiently. On the other hand, Atom offers extensibility through its package ecosystem, allowing users to enhance functionality, integrate tools, and customize the editor to suit their specific workflow requirements. The differences in scalability and extensibility between Ansible and Atom address the unique demands of automation and code editing tasks in different environments.

In Summary, Ansible and Atom differ in their deployment approach, programming languages, integration capabilities, community support, workflow complexity, and scalability/extensibility, catering to distinct needs in system automation and code editing realms.