Anemia refers to an abnormally low hematocrit, as opposed to polycythemia, which refers to an abnormally high hematocrit.[2] For a condition such as anemia that goes unnoticed, one way it can be diagnosed is by measuring the hematocrit levels in the blood.[3] Both are potentially life-threatening disorders.
October 20, 2007. How to find the version of Windows thatâs running on your computer â A dummies guide. To determine which operating system you have installed on the computer, follow these steps for any operating system other than Windows Vista: 1. Click Start, and then click Run. 2. In the Open box, type sysdm.cpl, and then click OK.
Windows OS. Windows OS, computer operating system (OS) developed by Microsoft Corporation to run personal computers (PCs). Featuring the first graphical user interface (GUI) for IBM-compatible PCs, the Windows OS soon dominated the PC market. Approximately 90 percent of PCs run some version of Windows.