Diphtheria and tetanus are serious diseases caused by bacteria. Diphtheria causes a thick coating in the nose, throat, and airways. It can lead to breathing problems, paralysis, heart failure, or death.
Student Notes Page 1 of 7 K Aquilina Input Devices Input is any data or instructions entered into the memory of a computer. An input device is any hardware component that allows a user to enter data and instructions into a computer. The following is a list of the most common input devices which are nowadays found in a computer system. QWERTY Keyboard glossary pg. 129, 132 A keyboard contains keys that allow a user to enter data and instructions into the computer. All computer keyboards have a typing area that includes the letters of the alphabet, numbers, punctuation marks, and other basic keys.
The document is archived and information here might be outdated. In Windows 7, the Windows multimedia control panel, Mmsys.cpl, provides a new Communications tab. This tab contains options that enables a user to set options that defines how the system manages a communication device. A communication device is used primarily for placing or receiving telephone calls on the computer. For a computer that has only one rendering device (speaker) and one capture device (microphone), these audio devices also act as the default communication devices.