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Questions and Answers
What is the main purpose of an input device?
What is the main purpose of an input device?
- Transform digital files
- Display output data
- Control computer programs
- Input raw data for processing (correct)
Which input device is characterized by rolling a ball with the thumb, fingers, or palm to move a cursor?
Which input device is characterized by rolling a ball with the thumb, fingers, or palm to move a cursor?
- Mouse
- Joystick
- Tracker ball (correct)
- Keyboard
What is the main function of a scanner as an input device?
What is the main function of a scanner as an input device?
- Read and convert an image into digital files (correct)
- Control the movement of the cursor on the screen
- Convert digital files into images
- Capture sound and convert it into text
Which input device is most favored by graphic designers?
Which input device is most favored by graphic designers?
What type of control surface is a touchpad commonly known as?
What type of control surface is a touchpad commonly known as?
When did the mouse come into common use on a PC?
When did the mouse come into common use on a PC?
Why is the quality of the keyboard often overlooked when buying a PC?
Why is the quality of the keyboard often overlooked when buying a PC?
What additional function do new scanners have that converts images into text?
What additional function do new scanners have that converts images into text?
Which input device is specifically designed to control computer games?
Which input device is specifically designed to control computer games?
What is the primary role of a microphone as an input device?
What is the primary role of a microphone as an input device?
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Study Notes
Input Devices
- The main purpose of an input device is to provide a means of communicating with a computer.
Specialized Input Devices
- A trackball is characterized by rolling a ball with the thumb, fingers, or palm to move a cursor.
Scanners
- The main function of a scanner as an input device is to capture images or texts into digital format.
Graphic Designers' Favorite Input Device
- Graphic designers most favor the graphics tablet as an input device.
Touchpad
- A touchpad is commonly known as a glide point or touchpad control surface.
History of Mouse
- The mouse came into common use on a PC in the 1980s.
Keyboard Quality
- The quality of the keyboard is often overlooked when buying a PC because it is considered a secondary component.
Scanner's Additional Function
- New scanners have an additional function called Optical Character Recognition (OCR) that converts images into text.
Gaming Input Devices
- A joystick is specifically designed to control computer games.
Microphone
- The primary role of a microphone as an input device is to capture audio signals for input into a computer.
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