Carbon Copy (software) Carbon Copy was an early remote control and file transfer software for DOS and Windows published by Microcom. It allowed remote access to a computer via dial-up modem connection.
A viral infection (the common cold) is the most common cause of a stuffy and/or runny nose, but allergies, influenza, and sinus infections also may cause these symptoms. Less commonly, anatomical obstructions (e.g. a deviated nasal septum, foreign bodies) may lead to nasal congestion.
Post-nasal drip is the sensation of mucus accumulating or dripping in the back of your throat. Post-nasal drip can irritate your throat, causing a sore throat or cough. It can go along with a stuffy nose if you have a nasal allergy.It is more likely to be caused by the mucus becoming too thick or by irritation of your throat. In my experience, the three most common causes are allergy, gastric reflux, and medications that cause dryness.â. Here are some other common conditions that may cause post-nasal drip: 1  Cold or flu viruses. 2  Sinus infection.