Chapter 3 · 10 hours
Multimedia
SEE past exam questions
Past questions and answers
4 questions set from this chapter. Most repeated first.
- CDC Class 10 Computer Science model paper, 3031 · 1 mark
Which image file format is commonly used for lossless image compression on the web?
(a) JPG
(b) PNG
(c) MP3
(d) MOV
Answer
(b) PNG
PNG (Portable Network Graphics) uses lossless compression, so no image data is lost when the file is saved or compressed. JPG uses lossy compression, while MP3 and MOV are audio and video formats respectively.
Answer checked by Claude Sonnet · Oct 21, 2026
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- CDC Class 10 Computer Science model paper, 3031 · 1 mark
Which of the following file formats should be used to store a recording of your voice on a computer?
(a) SVG
(b) WAV
(c) GIF
(d) PDF
Answer
(b) WAV
WAV is an audio file format, so it is the right choice for storing a voice recording. SVG and GIF are image/graphics formats, and PDF is a document format — none of them can store sound.
Answer checked by Claude Sonnet · Oct 21, 2026
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- CDC Class 10 Computer Science model paper, 3031 · 2 marks
Differentiate between raster graphics and vector graphics with any two points.
Answer
Raster graphics vs Vector graphics
| Raster graphics | Vector graphics |
|---|---|
| Made of a grid of pixels (picture elements). | Made of mathematical paths defined by points, lines and curves. |
| Resolution dependent — enlarging makes the image blurry or pixelated. | Resolution independent — can be scaled to any size without losing quality. |
Examples: Raster — photographs, scanned images (JPEG, PNG, BMP); Vector — logos, clip art (SVG, AI, EPS).
Answer checked by Claude Sonnet · Oct 21, 2026
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- CDC Class 10 Computer Science model paper, 3031 · 2+2 marks
Describe the major components of multimedia. Explain any two uses of multimedia in education.
Answer
Major components of multimedia
- Text – The most basic element; words, sentences and paragraphs used to convey information. It may be formatted (font, size, colour) to make the message clear.
- Graphics/Images – Pictures, drawings, charts, diagrams and photographs that present information visually. They include both bitmap (raster) and vector images.
- Audio – Sound in the form of speech, music or sound effects. It makes content lively and is useful where reading is difficult.
- Video – Moving pictures with or without sound. It shows real events and processes in action and is the most expressive component.
- Animation – A sequence of still images shown rapidly to create the illusion of movement. It is used to explain processes and to attract attention.
- Interactive media/Hypertext – Elements such as buttons, menus, links and forms that let the user control the flow of the presentation instead of only watching it.
Two uses of multimedia in education
- E-learning and virtual classrooms – Lessons delivered through audio, video, animation and interactive exercises let students learn at their own pace and from any place. Difficult topics (for example, the working of the heart or the solar system) can be shown through animation instead of only being read from a book.
- Computer-aided teaching and presentations – Teachers use slides, projectors, educational CDs and simulations to explain lessons in class. This makes learning more interesting, holds the students' attention and helps them remember the content for a longer time.
Answer checked by Claude Sonnet · Oct 21, 2026
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Questions from CDC Class 10 Computer Science model paper, 3031 (CDC model paper on the new syllabus, 2 hours, with marking scheme), SEE 2082 Computer Science, RE-3031 'A' (Board exam, Chaitra 2082 (scan images); old course, only questions that fit the new outline are used), SEE Grade Increment 2082 Computer Science, GI-3031 (Grade increment paper (4-page scan); old course, month not stated), SEE 2081 Computer Science, RE-3031 (Board exam, 2081 (scan); old course, only questions that fit the new outline are used), SEE 2080 Computer Science, RE-3031 (typed, solved) (Board exam, 2080 (typed with solutions); old course, only questions that fit the new outline are used), CDC SEE Computer Science model question 2080 (CDC model paper (old course), 50 marks; only questions that fit the new outline are used), PABSON SEE Pre-Board 2082 Opt. II Computer Science, 3031 'B' (Pre-board (model) exam, PABSON, 2082-10-29; old course, only questions that fit the new outline are used), PABSON SEE Pre-Board 2082 Opt. II Computer Science, 3031 'C' (Pre-board (model) exam, PABSON, 2082-10-22; old course, only questions that fit the new outline are used), SEE Computer Science Model Sets 1 to 5 (seeqbasicomputer) (Model question sets 1-5 collected on a teacher blog (old course, about 2080); only questions that fit the new outline are used) and SEE Computer Science Technical Terms 1.6 (seeqbasicomputer) (Compilation of 'technical term' questions tagged with the SEE/province/pre-board exams in which they were asked (2073-2080); only questions tagged with a SEE exam are used). Answers are written for this site; check them against your class notes.
Chapter titles and hours from the official syllabus ↗