Analog signals are continuous in both time and value. Analog signals are used in many systems, although the use of analog signals has declined with the advent of cheap digital signals. Digital signals are sampled, quantized & encoded version of continuous time signals which they represent.
Causes of Tingling in the Hands and Feet. Diabetes is one of the most common causes of peripheral neuropathy, accounting for about 30% of cases. In diabetic neuropathy, tingling and other symptoms often first develop in both feet and go up the legs, followed by tingling and other symptoms that affect both hands and go up the arms. About two-thirds of people with diabetes have mild to severe forms of nerve damage.
If your hands and feet are cold all the time they may be trying to tell you something. Cold hands and feet, and pain, can indicate an underlying disease. Here are a few of the most common reasons for numbing and tingling sensations in the hands and feet. Raynaudâs Disease: This little known disease affects women much more than men and its cause is not really known.