Week 3 hard

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What is the primary purpose of lower response times in gaming?

To increase the number of frames per second

To improve image quality

To enable higher resolution displays

To reduce input lag and provide a more responsive experience (correct)

Which of the following is NOT a common aspect ratio for screens?

21:9

4:3

1:1 (correct)

16:9

What is the primary function of a printer's ink ribbon in a dot matrix printer?

To strike against the paper and transfer the ink onto the page (correct)

To transfer the image directly onto the paper

To create the color in the printed output

To lubricate the print head

What is the key difference between an inkjet printer and a laser printer in terms of the printing process?

Inkjet printers spray liquid ink onto the paper, while laser printers use an electrostatic process to transfer the image Signup and view all the answers

What is the primary purpose of measuring a printer's resolution in dots per inch (DPI)?

To indicate the level of detail and sharpness in the printed output Signup and view all the answers

Which type of printer is typically used in larger office settings?

Laser printer Signup and view all the answers

What is the primary advantage of a laser printer over an inkjet printer?

All of the above Signup and view all the answers

Which type of printer is commonly used for multi-part forms?

Dot matrix printer Signup and view all the answers

Which of the following is NOT a component or layout feature of a keyboard?

Multimedia Keys Signup and view all the answers

Which of the following statements about input devices is INCORRECT?

An input device is a piece of computer hardware used to provide output signals to a computer. Signup and view all the answers

What is the primary function of an output device?

To receive data from a computer and translate it into a form that humans can understand. Signup and view all the answers

Which of the following is NOT an example of an output device mentioned in the text?

Projector Signup and view all the answers

What is the purpose of the navigation keys on a keyboard?

To navigate and control the cursor or pointer on the screen. Signup and view all the answers

Which of the following statements about the function keys on a keyboard is CORRECT?

Function keys are located at the top of the keyboard and are typically labeled F1-F12. Signup and view all the answers

Which of the following is NOT a type of key mentioned in the text as being part of a keyboard's layout?

Multimedia Keys Signup and view all the answers

What is the primary purpose of input devices?

To provide data and control signals to a computer for processing. Signup and view all the answers

Which of the following is not a type of display technology mentioned in the text?

Plasma Display Signup and view all the answers

What is the primary advantage of LED displays compared to LCDs, as mentioned in the text?

Brighter, more vibrant images and better black levels Signup and view all the answers

What does the term "response time" refer to in the context of display screens?

The time it takes for a pixel to change colors Signup and view all the answers

Which of the following is not a key feature of display screens mentioned in the text?

Contrast ratio Signup and view all the answers

What does the term "resolution" refer to in the context of display screens?

The number of pixels on the screen Signup and view all the answers

Which of the following statements about refresh rate is true, based on the information provided in the text?

Common refresh rates include 60Hz, 120Hz, and 144Hz Signup and view all the answers

What is the primary function of a monitor or display screen?

To present visual information processed by the computer Signup and view all the answers

Which of the following statements about Cathode Ray Tube (CRT) monitors is true, based on the information provided in the text?

CRT monitors use electron guns to illuminate phosphors on the screen Signup and view all the answers

Which of the following is a distinguishing characteristic of a sheet-fed scanner?

It automatically feeds individual sheets of paper through a mechanism. Signup and view all the answers

What is the primary function of a handheld scanner?

To manually scan documents by moving the device over them. Signup and view all the answers

Which of the following statements about microphones is correct?

Microphones are input devices that convert sound waves into electrical signals. Signup and view all the answers

What is the primary distinction between a digital camera and a webcam?

A digital camera captures high-resolution images and videos, while a webcam is primarily for online communication. Signup and view all the answers

Which of the following statements about touchscreens is incorrect?

Touchscreens are input devices that convert sound waves into electrical signals. Signup and view all the answers

What is the primary advantage of a sheet-fed scanner over a flatbed scanner?

The ability to automatically feed individual sheets of paper through a mechanism. Signup and view all the answers

Which of the following input devices is primarily designed for photography and videography?

Digital camera Signup and view all the answers

Which of the following statements about webcams is true?

Webcams are often built into laptops or monitors for video conferencing and online communication. Signup and view all the answers

How does a modem primarily facilitate communication between computers?

By converting digital data into analog format for transmission Signup and view all the answers

What is the main purpose of a Digital-to-Analog Converter (DAC) in the computer speaker system?

Convert digital audio data into an analog signal for sound production Signup and view all the answers

How does a computer speaker system produce sound waves?

Through the physical movement of its drivers Signup and view all the answers

What is the function of a computer's output sound card in the speaker system?

Amplify the signal for sound wave production Signup and view all the answers

Which connectivity options can printers use to connect to devices according to the text?

USB, Ethernet, Wi-Fi, Bluetooth Signup and view all the answers

What do the acronyms 'CS001' represent in the context of the text?

'Computer Speaker 001' Signup and view all the answers

In relation to modulation and demodulation, what is modulation primarily responsible for?

Converting digital signals into analog signals for transmission Signup and view all the answers

What does a modem do when receiving data over communication lines?

Demodulates incoming analog signals into digital format Signup and view all the answers