Which term describes the combination of computer hardware and an operating system, such as a laptop running Windows?
Platform
What is the name for a unit in a public place that has a touch screen and limited functionality, such as a self-service checkout or an airport check-in point?
Kiosk
Which term describes a product that is requested from a store, then downloaded and installed onto a smartphone, tablet or smart television?
App
What is meant by a memory stick?
Removable flash memory that is used to store and share files
What is meant by paper-based media?
Print media such as magazines, newspapers and posters that distribute text and images
What is meant by a website?
A product made of text, images and graphics that is viewed in a web browser over the Internet
A viewer can watch a series at home but cannot watch it when they travel to another country. Which term describes this?
Geoblocking
What is meant by online distribution?
Sending media to users over the Internet
Which of these is an online distribution platform?
A website
A designer needs to install and run a wide range of editing software to create a magazine. Which platform is most suitable?
A desktop computer
A company is designing a promotional campaign that will be viewed on mobile devices. Which characteristic of mobile devices should the designers plan for?
The smaller screen size
A family wants to stream films together on a large screen and choose what to watch with a handset. Which platform suits them best?
An interactive TV
A gym shows its class timetable on touch screen kiosks in the building. Why is this better than printing the timetable on paper?
The timetable can be updated digitally without being reprinted
A band wants fans to play their new album on car stereos that only have a CD player. Which physical medium should they release it on?
CD
A viewer streaming a film on a phone outdoors uses up their monthly data allowance quickly. Which disadvantage of online distribution does this show?
High-quality streaming needs a lot of bandwidth
A takeaway wants to reach every household on a nearby estate, including people who never use the Internet. Why are printed flyers a good choice?
They need no device, account or electricity to view
A small film company wants viewers around the world to watch its new film on the day it is released. Which distribution method should it use?
Online distribution
A photographer must send 15 GB of holiday photos to a client who has no Internet access. Which physical medium is most suitable?
A memory stick
A film studio is releasing a film in high definition on disc. Why is a Blu-ray disc a better choice than a DVD?
It stores much more data, so it can hold high definition video
A family has built up a large collection of films on DVD. Which is a disadvantage of physical media that they might experience?
The discs take up storage space in the home
A collector wants to keep a film forever and display it on a shelf. Why is buying it on Blu-ray better for them than streaming it?
They own a copy that they can keep and display
A hotel provides an Internet kiosk in its lobby so guests can look up local attractions. Guests complain that they cannot open their own streaming account on it. Why is this?
The kiosk is locked to the one service it provides
Which is a disadvantage of distributing a magazine on paper rather than online?
It has to be printed and physically transported
A viewer buys an interactive TV to stream programmes and use apps. Which is a disadvantage of this platform?
It supports a limited range of apps and services
What is the name for the number of times a sound wave is captured every second?
Sample rate
What is meant by bit depth?
The number of bits used to represent each audio sample
Which term describes how many individual images are displayed every second in a video?
Frame rate
What is meant by a vector image?
An image built from lines, curves and fills that can be scaled
Which static image file format stores an image as uncompressed data?
TIFF
What is meant by UHD?
A video resolution above HD that includes both 4K and 8K
What does the DPI of an image measure?
The number of dots in one inch of a printed image
What is the pixel resolution of SD (standard definition) video?
720 x 576 pixels
Which audio file format is compressed but gives better sound quality than MP3 at the same file size?
AAC
Why does a bitmap image look blocky when it is enlarged on screen?
It is made from a grid of fixed pixels
What is the minimum resolution usually recommended for images that will be printed in a magazine?
300 DPI
A photographer wants the greatest possible control when adjusting a photo after the shoot. Which file format should be used?
RAW
An animated advert on a web page must stay sharp at any screen size and keep a very small file size. Which format is most suitable?
SVG
A recording is changed from 16-bit to 24-bit depth. What effect does this have on the sound?
Each sample is recorded more accurately
A music producer wants to archive master recordings without losing any sound quality. Which format is most suitable?
WAV
A video is recorded at a resolution of 1920 x 1080 pixels. Which type of resolution is this?
HD
A sports channel wants fast action in its videos to look smooth. Which property should be increased?
Frame rate
A TV production company records video that will be edited in detail later without losing any data. Which format is most suitable?
AVI
A producer converts an uncompressed WAV recording of a song into an MP3 file so it can be shared online. What is the main effect of this change?
The file size is smaller but some sound quality is lost
A web designer is told that a banner image must be 800 pixels wide and 320 pixels high. What does this describe?
The pixel dimension of the banner
A hotel supplies a photograph for its website, but the photo has a very low PPI. What is the most likely effect?
The photo will look blurred or pixelated on screen
A video is described as being recorded in 8K. What does the 8K refer to?
It has around 8,000 pixels across the width of the picture
How does an animated image file create the appearance of movement?
It stores several frames that are shown quickly in order
A video-sharing website decides not to use uncompressed video files. Why is this?
Their large file size makes them slow to send to viewers
Which term describes the process of reducing the amount of data in a file so that it takes up less storage space?
Compression
What is meant by lossless compression?
The file size is reduced but none of the original data is lost
Which term describes a method that reduces the size of a file by permanently discarding some of the original data, which can lower the quality of the file?
Lossy compression
What is meant by decompression?
The compressed file is restored to its original size and content
Which term describes the visible mistakes, such as pixelation, that appear when too much of the original data has been removed from an image or video?
Digital artefacts
What is meant by a codec?
Software that encodes data during compression and decodes it when the file is opened
Why must a word-processed document be compressed using lossless compression?
So the contents are exactly the same after uncompressing
A photo is compressed very heavily using lossy compression. What is most likely to be noticed?
Digital artefacts, such as pixelation, in the photo
A company compresses the images and videos on its website. What is the main benefit for visitors?
The pages load quickly because the files download faster
How does lossy compression usually compare with lossless compression?
Lossy reduces the file size much more than lossless
Which file would normally be stored using lossless compression?
A zip file containing a set of documents
As the level of lossy compression applied to a file increases, what happens?
More of the original information is lost from the file
A video production company keeps a large library of video clips. Every clip is compressed before it is stored. What is the main benefit of this?
The clips take up less storage space
A software company compresses the program files for a computer game before customers download it. Why must lossless compression be used?
So the program code is exactly the same after it is uncompressed
A music track is compressed using lossy compression and the file is much smaller, but most listeners cannot hear any difference from the original. Why is this?
Only a small amount of the original data was removed
A film is compressed before it is made available on a streaming service. Why is this done?
So the film can be sent over the Internet without buffering
A wildlife photographer keeps the original high quality versions of her photos. Why would she store these using lossless compression rather than lossy compression?
So that no detail from the original photos is lost
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