Major Depressive Disorder. The leading cause of disability in the U.S. for ages 15 to 44.3. Affects approximately 14.8 million American adults, or about 6.7 percent of the U.S. population age 18 and older in a given year. While major depressive disorder can develop at any age, the median age at onset is 32.5. More prevalent in women than in men.
Linux vs. Unix. Linux is an open source, free to use operating system widely used for computer hardware and software, game development, tablet PCS, mainframes etc. Unix is an operating system commonly used in internet servers, workstations and PCs by Solaris, Intel, HP etc. current rating is 4.09/5.
Linux is an operating system -- very much like UNIX -- that has become very popular over the last several years. Operating systems are computer programs. An operating system is the first piece of software that the computer executes when you turn the machine on. The operating system loads itself into memory and begins managing the resources available on the computer.