Loading the lesson
Loading the lesson
Search AllRounder.ai
Search the courses, subjects, tracks, games and features, or jump straight to a page.
Search the courses, subjects, tracks, games and features, or jump straight to a page.
5 cards from this section. Quick, good the night before a test.
What is the difference between soft copy and hard copy output? Name one device that produces each.
Ask whether you could carry the output home in your bag.
Name one impact printer and two non-impact printers.
Which printer hits the paper?
Which of these is hard copy output?
Which one can you put in a file folder?
Which of these is an impact printer?
Listen for the noisy one.
A school needs output devices for four jobs: printing 2,000 report cards each term, showing lessons to a class of 40 students, letting a blind student read computer text, and printing large building plans for its architecture club. Recommend a device for each job and justify it.
For each job, think about the audience, the quantity and the size of the output.
A 4K screen has a resolution of 3840 × 2160. Using 24-bit colour, work out the memory needed for one full picture on a 4K screen and on a Full HD screen (1920 × 1080), and how many times larger the 4K picture is. Write a Java program to check your answer.
Doubling both the width and the height multiplies the number of pixels by four.
6 more questions in this section. Enroll free to practise them all.
Enroll free