Exam 2: Input, Output and Processing

OCR scanners use a light source to read characters, marks, and codes.

A(n) ____ is a pressure-sensitive pointing device on a notebook computer that looks like a pencil eraser.

Define biometrics. What is it used for? List the three steps typically involved in biometrics. Name two common biometric methods. How do privacy and civil liberty advocates feel about biometrics?

Carolina is looking to buy a new computer, and is researching input devices. Carolina learns that a(n) ____ mouse uses infrared waves to communicate with the computer.

The trackball is a pointing device that works like a mouse turned upside down.

Which of the following is NOT an output device for the physically challenged?

Expansion slots are openings on the motherboard where an expansion board can be inserted.

A(n) ____________________ is a common pointing device for laptops with a specialized surface that can convert the motion of your fingers to a position on the screen.

Print quality is measured in ppm.

The NIK keyboard is flexible, can be rolled up and put into a briefcase, and even washed with soap and water or a spray cleaner.

A(n) ____ is also called an adapter card, add-in, or add-on.

The most common type of pointing device for PCs is the keyboard.

The amount of ROM helps to speed up the processing cycle and to enhance the computer's performance.

Webcams are video-capturing cameras connected to computers or networks that display images through the World Wide Web.

A(n) ____ can connect up to 127 peripheral devices with a single connector and transfer data at rates of up to 200 million bits per second.

Which of the following is NOT true about dot matrix printers?

A(n) ____________________ device is an input device you use to select objects and click buttons.

A(n) ____ mouse uses a laser to detect the mouse's movement.