The manifestations of systemic lupus erythematosus as well include inflammation of the kidneys, loss of appetite, fatigue, and hair loss. Likewise, the origin of rheumatoid arthritis is still not known.The condition can attack the knees, wrists, feet, fingers, and ankles.he manifestations of systemic lupus erythematosus as well include inflammation of the kidneys, loss of appetite, fatigue, and hair loss. Likewise, the origin of rheumatoid arthritis is still not known.
Quick Answer. An operating system is the most essential program that allows a computer to run and execute programs. Without an operating system, a computer cannot be of any important use since the computer's hardware won't be able to communicate with the software. Continue Reading.
What is operating system on PC? An operating system (OS) is an interface between hardware and user which is responsible for the management and coordination of activities and the sharing of the resources of aâ¦ computer, that acts as a host for computing applications run on the machine.