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.
Tingling in hands and feet. Tingling in the hands or feet is common and can be a long-term or temporary symptom. In many cases, tingling in the hands or feet is nothing to worry about, but it can be a symptom of some medical conditions.owever, too much B6 can also cause tingling in the hands and feet. Alcoholism. Alcoholics are more likely to have a thiamine or other important vitamin deficiencies because of poor dietary habits, a common cause of peripheral neuropathy.