If you’ve ever opened Windows Task Manager to figure out why your PC is running slowly, you’re already familiar with the work of Dave Plummer.

The former Microsoft engineer helped create the Windows Task Manager decades ago. Now, he’s returning to the concept with a brand-new application called TMOG, short for Task Manager OG.

But there’s an interesting twist: TMOG launched first for macOS, not Windows.

The new system-monitoring utility provides real-time information about CPU usage, memory, storage, networking, GPU activity, running processes, startup applications, system services, and more. Plummer has also confirmed that native versions for Windows and Linux are in development.

TMOG is currently available as a free beta for Mac users, making it an interesting alternative to Apple’s built-in Activity Monitor.

Who Is Dave Plummer?

Dave Plummer is a former Microsoft engineer who worked at the company from 1993 to 2003.

During his time at Microsoft, he worked on numerous Windows components and became particularly associated with the development of Task Manager, one of the operating system’s most useful troubleshooting tools.

Task Manager eventually became an essential part of Windows.

Users rely on it to:

• Monitor CPU and RAM usage
• Identify applications consuming excessive resources
• End frozen programs
• Check running processes
• Monitor startup applications
• Analyze system performance
• Troubleshoot high resource usage

More than two decades later, Plummer is revisiting that idea with TMOG.

What Is TMOG?

TMOG (Task Manager OG) is a native system-monitoring application designed to provide a detailed overview of a computer’s hardware, software, and resource usage.

The application is currently available in beta on macOS.

Rather than focusing exclusively on running applications, TMOG brings a much broader collection of system information into a single interface.

The dashboard can display information about:

• CPU utilization
• RAM usage
• GPU activity
• Storage
• Network traffic
• Power consumption
• Running processes
• CPU temperature
• CPU frequency
• System uptime

The result is essentially a comprehensive system-monitoring dashboard inspired by the philosophy behind Windows Task Manager.

TMOG Is More Than a macOS Task Manager Clone

Calling TMOG a simple Task Manager replacement would undersell what the application is trying to accomplish.

The software combines system monitoring with hardware information and process management.

The main dashboard provides an overview of the computer’s current condition, while individual sections allow users to drill down into specific components.

For example, selecting the CPU section provides significantly more information than simply displaying overall processor utilization.

Users can see details such as:

• Activity for individual logical CPU cores
• Current CPU frequency
• Physical core count
• Logical processor count
• CPU cache information
• System uptime
• Processor utilization

Similar detailed views are available for memory, storage, networking, GPU activity, and power consumption.

This approach makes TMOG particularly interesting for users who want more technical information than macOS normally presents in one place.

Real-Time CPU and Hardware Monitoring

One of TMOG’s main strengths is its real-time monitoring capability.

The application continuously updates important performance metrics, allowing users to see what is happening on their Mac while applications are running.

For troubleshooting, this can be useful when:

• A Mac suddenly becomes slow
• CPU usage remains unusually high
• An application consumes excessive memory
• The system becomes unusually warm
• Battery life suddenly drops
• Network activity appears unexpectedly high
• A background process causes performance problems

Instead of opening several different macOS utilities, users can access many of these statistics through TMOG.

Detailed CPU Information

The CPU section provides a more granular view of processor activity.

Rather than displaying only an overall CPU percentage, TMOG can show activity across individual logical processors.

This can help advanced users determine whether a particular workload is heavily concentrated on specific CPU cores.

The CPU page also exposes hardware information such as the number of physical and logical cores, processor frequency, cache information, and system uptime.

For enthusiasts and developers, this level of detail can be more useful than a simple percentage shown in a basic performance monitor.

RAM and Memory Monitoring

TMOG also includes a dedicated memory section for monitoring RAM usage.

The interface is designed to show how much memory the system is using and provide additional information about the computer’s memory configuration.

However, beta software can still have bugs and compatibility problems.

During early testing on some Intel-based Macs, certain memory information may not be displayed correctly. That’s not necessarily surprising for a new beta application, and future releases could improve hardware reporting.

Users should therefore treat some of the current hardware statistics as beta-stage information rather than assuming every value is perfect.

Monitor Storage and Network Activity

TMOG also brings storage and networking information into its monitoring interface.

The storage section can provide an overview of disk activity and related system information.

The networking section similarly allows users to inspect network activity without having to rely entirely on separate monitoring tools.

For users troubleshooting a slow computer, these sections can help determine whether the bottleneck is actually the CPU—or whether storage or network activity is responsible.

GPU and Power Monitoring

Modern Macs rely heavily on their GPU for everything from graphics applications to video editing and gaming.

TMOG includes GPU monitoring alongside the other major hardware components.

Power consumption is another useful addition.

Power-related information can be particularly interesting for MacBook users trying to understand why battery life is lower than expected.

A background process consuming significant CPU resources, for example, can potentially increase power consumption as well.

TMOG Includes a Full Process Viewer

Just like Windows Task Manager, TMOG isn’t limited to displaying hardware statistics.

It also provides a list of running processes.

Users can inspect processes and see their resource consumption, including CPU and memory usage.

This can make it easier to identify applications or background processes that are consuming an unusual amount of system resources.

For troubleshooting, this is arguably one of the most important features of any Task Manager-style utility.

Manage Startup Applications

TMOG also includes a dedicated section for startup applications.

Startup programs can have a significant impact on how quickly a computer becomes usable after booting.

They can also consume CPU, memory, and other resources in the background.

Having startup applications listed alongside the rest of the system information gives users a more complete picture of what is running automatically.

View Connected Users

Another section of TMOG provides information about users currently connected to the Mac.

This can be useful on shared computers or systems where multiple accounts are active.

The application can also provide resource information associated with users, making it easier to understand which account or workload is consuming system resources.

Browse macOS System Services

TMOG also includes a dedicated view for system services.

This is particularly useful for advanced users who want to understand what is running in the background.

Background services can sometimes consume resources without an obvious application window being open.

Being able to inspect those services alongside CPU, memory, and process information can make troubleshooting considerably easier.

TMOG Also Displays Hardware and System Information

Beyond performance monitoring, TMOG acts as a hardware-information utility.

The system information section can provide details such as:

• Mac model
• macOS version
• Processor
• Installed memory
• Display information
• Hardware configuration

That means TMOG can potentially serve two purposes: monitoring the computer while it is running and quickly checking its hardware configuration.

TMOG vs. Windows Task Manager

The comparison with Windows Task Manager is inevitable because Dave Plummer was involved in the original tool.

However, TMOG isn’t simply a port of Windows Task Manager to another operating system.

It takes the same general concept—giving users visibility into what their computer is doing—and expands it into a broader system-monitoring application.

The comparison will become even more interesting once TMOG reaches Windows.

Will TMOG Come to Windows?

Yes.

Dave Plummer has indicated that native Windows and Linux versions are being developed.

However, there is currently no confirmed public release date for those versions.

That could make the Windows version particularly interesting.

Plummer knows Windows Task Manager from the inside, so a modern tool designed by someone directly involved in its history could offer an unusual perspective on how system monitoring should work on today’s PCs.

Whether TMOG will eventually complement or compete with Microsoft’s own Task Manager remains to be seen.

Will TMOG Be Free?

The current beta is available free of charge.

Plummer has indicated that the core application will remain free, although a Pro version could potentially be introduced in the future.

For now, Mac users can try the beta without paying for the application.

As with any beta software, however, users should expect bugs, missing features, and occasional compatibility issues.

TMOG macOS Compatibility

The current beta supports:

• macOS 13 and later
• Apple Silicon Macs
• Intel-based Macs

This gives TMOG relatively broad compatibility across modern Mac hardware.

If you’re running an older version of macOS, however, you may need to upgrade before installing the application.

Where to Download TMOG

TMOG is currently available through the project’s official website.

Download TMOG from the official website

Because the software is still in beta, users should download it from the official source rather than relying on third-party download sites.

Is TMOG Worth Trying?

For Mac users who want detailed information about what’s happening under the hood, TMOG looks like an interesting utility.

Apple already provides Activity Monitor, which is perfectly capable of showing processes, CPU usage, memory pressure, energy consumption, disk activity, and network activity.

TMOG’s appeal is its broader presentation and its attempt to combine performance monitoring, process management, startup information, system services, and hardware details into a single interface.

The application is particularly interesting because of its creator.

Dave Plummer helped create the Windows Task Manager that generations of PC users have relied on. Seeing how he approaches system monitoring on another platform makes TMOG more than just another Mac utility.

The real test, however, will come as the project matures.

Final Thoughts

TMOG is an intriguing new system-monitoring application from the person who helped create Windows Task Manager.

Its current macOS beta combines real-time CPU, memory, GPU, storage, network, power, process, startup, service, and hardware information into one interface.

It’s also ambitious.

Rather than simply recreating Task Manager on another platform, TMOG attempts to provide a more comprehensive view of what is happening inside a modern computer.

The current macOS release is still a beta, so some features may not work perfectly yet. But with Windows and Linux versions reportedly in development, TMOG could eventually become a cross-platform alternative to the traditional system-monitoring tools built into Windows, macOS, and Linux.

For now, Mac users running macOS 13 or newer can try it for free and see whether Dave Plummer’s modern take on Task Manager deserves a place alongside Apple’s Activity Monitor.