COPY: WJEC GCSE Digital Technology

Which of the following is true about analogue data?

It can be processed by computers without conversion

It is made up of binary digits

It changes smoothly (correct)

It includes smartphones and digital cameras

What is the smallest piece of data that a computer can process or store?

Kilobytes

Bytes

Bits (correct)

Words

Which of the following is an example of digital storage medium?

Clocks

DVDs

Thermometers

Computer hard-drives (correct)

What is the advantage of magnetic storage over other storage types?

It is low cost per gigabyte Signup and view all the answers

What is the process called to convert analogue sound into digital data?

Analogue to digital conversion Signup and view all the answers

What determines the quality of digital sound?

Sample rate and bit depth Signup and view all the answers

Which of the following is true about bitmap images?

They have higher file sizes compared to vector images Signup and view all the answers

Which of the following is a popular lossless compression type for graphics that might need to be edited?

PNG Signup and view all the answers

What is the disadvantage of lossy compression for digital sound?

It permanently removes data to reduce file size and can result in lower quality sound Signup and view all the answers

Which of the following is true about analogue data?

It changes smoothly and continuously Signup and view all the answers

Which type of storage medium is affected by magnetic fields?

Magnetic storage Signup and view all the answers

What is the advantage of solid-state storage over hard disks?

It is faster Signup and view all the answers

What is the purpose of an analogue to digital converter (ADC)?

To convert analogue sound to digital sound Signup and view all the answers

Which type of image is made up of pixels?

Bitmap images Signup and view all the answers

What determines image resolution?

The number of pixels displayed horizontally and vertically Signup and view all the answers

Which type of image compression maintains image quality but still reduces file size?

Lossless compression Signup and view all the answers

Which type of file is popular for simple animated images?

GIF Signup and view all the answers

What is the advantage of compressed digital sound files over uncompressed digital sound files?

Lower quality Signup and view all the answers

Which of the following is true about analogue data?

It changes smoothly and continuously Signup and view all the answers

Which type of storage medium is affected by magnetic fields?

Magnetic storage Signup and view all the answers

What is the advantage of solid-state storage over hard disks?

It is faster Signup and view all the answers

What is the purpose of an analogue to digital converter (ADC)?

To convert analogue sound to digital sound Signup and view all the answers

Which type of image is made up of pixels?

Bitmap images Signup and view all the answers

What determines image resolution?

The number of pixels displayed horizontally and vertically Signup and view all the answers

Which type of image compression maintains image quality but still reduces file size?

Lossless compression Signup and view all the answers

Which type of file is popular for simple animated images?

GIF Signup and view all the answers

What is the advantage of compressed digital sound files over uncompressed digital sound files?

Lower quality Signup and view all the answers

COPY: WJEC GCSE Digital Technology - Topic 1 MC

Questions and Answers

Which of the following is true about analogue data?

What is the smallest piece of data that a computer can process or store?

Which of the following is an example of digital storage medium?

What is the advantage of magnetic storage over other storage types?

What is the process called to convert analogue sound into digital data?

What determines the quality of digital sound?

Which of the following is true about bitmap images?

Which of the following is a popular lossless compression type for graphics that might need to be edited?

What is the disadvantage of lossy compression for digital sound?

Which of the following is true about analogue data?

Which type of storage medium is affected by magnetic fields?

What is the advantage of solid-state storage over hard disks?

What is the purpose of an analogue to digital converter (ADC)?

Which type of image is made up of pixels?

What determines image resolution?

Which type of image compression maintains image quality but still reduces file size?

Which type of file is popular for simple animated images?

What is the advantage of compressed digital sound files over uncompressed digital sound files?

Which of the following is true about analogue data?

Which type of storage medium is affected by magnetic fields?

What is the advantage of solid-state storage over hard disks?

What is the purpose of an analogue to digital converter (ADC)?

Which type of image is made up of pixels?

What determines image resolution?

Which type of image compression maintains image quality but still reduces file size?

Which type of file is popular for simple animated images?

What is the advantage of compressed digital sound files over uncompressed digital sound files?

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