A CMOS battery--short for complementary metal oxide semiconductor--is necessary to retain your computer's hardware settings. Symptoms of a dying CMOS battery include system warnings, lost time settings, and sometimes even unexpected shutdowns. Once you've recognized the symptoms, you can check the battery itself.
A non-governmental organization (NGO) is a citizen-based association that operates independently of government, usually to deliver resources or serve some social or political purpose.
The acronym NGO stands for non-governmental organization. With only slightly more specificity, an NGO is any organization, usually non-profit, that operates independently of a government. Contrary to common usage, the NGO title does not necessarily imply the organization works abroad; NGOs can be local, national, or international.