The format is binary and consists of four sections: 1  The lead, which identifies the file as an RPM file and contains some obsolete headers. 2  The signature, which can be used to ensure integrity and/or authenticity. 3  The header, which contains metadata including package name, version, architecture, file list, etc.
When your heart beats, it contracts and pushes blood through the arteries to the rest of the body. This force creates pressure on the arteries. This is called systolic blood pressure. A normal systolic blood pressure is below 120.A systolic blood pressure of 120 to 139 means you have prehypertension, or borderline high blood pressure.Even people with prehypertension are at a higher risk of developing heart disease.his is called systolic blood pressure. A normal systolic blood pressure is below 120. A systolic blood pressure of 120 to 139 means you have prehypertension, or borderline high blood pressure. Even people with prehypertension are at a higher risk of developing heart disease.
The Basics: What Does Blood Pressure Mean. The most important thing to know about your blood pressure is whether or not it's high. A blood pressure reading consists of two numbers, with acceptable ranges for each one. The first, or top, number is called the systolic number. That's the pressure inside your arteries when your heart beats. The bottom, or diastolic, number is the pressure between beats. You want those numbers to be below 120 and 80, respectively.