100% | SEPTA | 5 | Org. that operates Philadelphia’s rail system |
55% | CTA | 3 | Org. that operates the El train system |
46% | UNIX | 4 | Operating system that's an alternative to Windows |
44% | FIRMWARE | 8 | Program that dictates a device's operating system |
44% | YOSEMITE | 8 | Apple operating system that's also a geographical name |
43% | NASA | 4 | Org. that operates the Jupiter orbiter |
43% | TSA | 3 | Org. that operates a PreCheck program |
43% | FEMA | 4 | Org. that operates Disaster Recovery Centers |
43% | NRA | 3 | Org. that operates the Political Victory Fund |
43% | CERN | 4 | Org. that operates the Large Hadron Collider |
43% | NASA | 4 | Org. that operates the James Webb telescope |
41% | VISTA | 5 | Operating system that succeeded Windows XP |
39% | UNIX | 4 | Operating system that was developed at Bell Labs |
39% | UNIX | 4 | Operating system that succeeded TOPS-10 in usage |
39% | WINDOWSXP | 9 | Microsoft operating system that preceded Vista |
39% | PIE | 3 | Operating system that a lot of Android devices run |
38% | BART | 4 | San Francisco's rail system |
38% | GNU | 3 | Operating system that shares its name with an African mammal |
38% | PCS | 3 | Machines that run the Windows operating system: Abbr. |
38% | IMAC | 4 | Desktop computer that runs the Mojave operating system |
38% | IMAC | 4 | Computer that can run the Catalina operating system |
37% | IMAC | 4 | Desktop that might run the High Sierra operating system |
37% | IOS | 3 | Island that lends its name to an operating system |
37% | MTA | 3 | N.Y.C. org. that operates 24/7 |
36% | OPEC | 4 | Org. that's well-endowed? |
36% | UBUNTU | 6 | Linux operating system that means "humanity" in certain African languages |
36% | GOP | 3 | Org. that's in the red? |
36% | SSA | 3 | Org. that's got your number? |
36% | OSHA | 4 | Org. that's found by accident? |
36% | IRS | 3 | Org. that's busy in April |