Information and Communication Technology - 4IT1 PearsonEdexcel

Graphics

Gbogbo ọrọ náà

Every website, poster, and presentation you see is built from images, and understanding how those images are constructed gives you the power to create, edit, and choose the right format for any task. Whether you are designing a logo that must scale to a billboard or cropping a photograph for a newsletter, the principles are the same.

In this lesson you will explore the two fundamental image types, bitmap and vector, learn how to build images from basic shapes, and practise the editing techniques that Edexcel expects you to demonstrate in the practical component of the 4IT1 course.

Ebumnobi

Explain features of image types: bitmap, vector
Create images: combining basic shapes and text, rectangles, circles, lines, triangles, arrows, text boxes
Edit images: image editing, cropping, adding captions/text, editing/deletion of unwanted aspects

Maapụ uche

E seela isiokwu a ka ị hụ otu echiche si ejikọta.

Mepee maapụ uche na ngwa

Kaadị ncheta

Omume ncheta ngwa ngwa n'ihe a na-anwale n'isiokwu a.

Mee omume kaadị ndị a na ngwa

Akwụkwọ Ọmụmụ

Open any app on your phone and you are surrounded by graphics: icons, photographs, diagrams, and animations. Some of those images look sharp at any size while others turn into a blurry mess when you zoom in. The difference comes down to how the image stores its data, and that distinction is one of the most frequently tested concepts in the Edexcel ICT specification.

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Akwụkwọ ndụmọdụ zuru oke nwere eserese

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Nnyocha Ọmụmụ

Ekele diri gi maka imecha ihe karịrị na Graphics. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.

Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.

Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.

Which image type is made up of a grid of coloured squares called pixels? A) Vector B) Bitmap C) SVG D) Flash Answer: B
What happens when a bitmap image is enlarged beyond its original resolution? A) It becomes a vector image B) It loses all colour C) It becomes pixelated D) Its file size decreases Answer: C
Which image type would be most suitable for a company logo that will appear on business cards and billboards? A) JPEG B) BMP C) GIF D) SVG Answer: D
What does cropping an image do? A) Increases the resolution of the image B) Removes unwanted areas from the edges C) Changes the colour depth D) Converts it from bitmap to vector Answer: B
In a graphics application, what does grouping objects allow you to do? A) Change the file format B) Move and resize multiple objects as one unit C) Increase the colour depth D) Convert bitmap to vector Answer: B

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