entranceTest_po_komp_grafike2 ready. Test work "information coding" For storing 256 color images per one
TEST "Coding information"
Question 1
The smallest unit of information measurement is ...
A. 1 file
B. 1 bit
C. 1 byte
D. 1 KB
Question 2
What is 1 byte?
A. 10 bit
B. 10 kB
C. 8 bit
D. 8 points
Question 3
A raster graphic file contains a black and white image (no grayscale) with a size of 100 x 100 pixels. What is the information volume of this file?
A. 10,000 bits
B. 1,024 bytes
C. 10 kB
D. 1,000 bits
Question 4
The largest information volume will have a file containing ...
A. 1 page of text
B. black and white drawing 100 X 100 pixels
C. audio recording of 1 min.
D. video clip, 1 min.
Question 5
Name the presentation forms graphic information.
A. Analog and discrete
B. Vector and analog
C. Discrete and vector
Question 6
The smallest element of the screen surface for which the address, color and intensity can be set is:
A. point
B. inch
C. pixel
D. centimeter
E. raster
Question 7
A pixel on a monitor screen is:
A. the minimum area of the image, which can be independently assigned a color
B. binary code of graphic information
C. electron beam
D. a set of 16 phosphor grains
Question 8
To store a 256-color image, one pixel is allocated for encoding:
A. 2 bytes
B. 4 bit
C. 8 bit
D. 4 bytes
E. 1 KB
F. 1 byte
Question 9
A raster graphic file contains a black and white image with 16 shades of gray, 10 x 10 pixels in size. What is the information volume of this file?
A. 100 bit
B. 400 bit
C. 800 bit
D. 400 bytes
E. 100 bytes
Question 10
The number of colors in the palette (N) and the amount of information required to encode each point (I) are related and can be calculated by the formula:
A. N = 2 ^ i
E. I = N ^ 2
Question 11
Depth of color is ...
A. the amount of information that is used to encode the color of one point in an image
B. the amount of information that is used to encode the color of the entire image
C. definitely the amount of information needed to get the color in the image
Question 12
Basic colors of the RGB palette:
A. red, blue and green
B. blue, yellow, green
C. red, yellow and green
D. cyan, yellow and magenta
Question 13
Basic colors of the CMYK palette:
A. red, yellow, purple
B. yellow, cyan, magenta
C. red, blue, green
D. blue, yellow, red
E. the color palette is formed by setting the values of the color hue, saturation and brightness
Question 14
Basic colors of the HSB palette:
A. red, green, blue
B. the color palette is formed by setting the values of the color hue, saturation and brightness
C. yellow, magenta, cyan
D. blue, yellow, red
Question 15
Converting a graphic image from analog to discrete form is called ...
A. sampling
B. formalization
C. redirection
D. discredit
1. Concept computer graphics, areas of application, types of graphics by the type of presentation of graphic data. Kryuchkov, Tatarinova, Chemakina, Lubnin
2. Raster graphics, definition, areas of preferential use, the most common software packages. Classification of modern graphics processing software. Graphic file formats. Sobolev, Zakomozhny
3. Vector graphics, definition, areas of preferential use, the most common software packages. Classification of modern graphics processing software. Graphic file formats. Kungrurov, Kazokov
4. Fractal graphics, definition, areas of preferential use, the most common software packages. Classification of modern graphics processing software. Graphic file formats.
5. Web graphics, definition, purpose. Classification of modern graphics processing software. Graphic file formats. Kolesnichenko Uzhintseva Vaseva
6. Representation of color in the computer Antakov, Fedyaevskaya
Human perception of light flux. Color and light. Achromatic, chromatic, monochromatic colors. Curves of the reaction of the eye.
Color characteristics. Lightness, saturation, tone.
Color models, color spaces. Additive and subtractive color models. Basic color models: RGB, CMY, CMYK, HSV.
Color management systems.
1. To display graphic information in personal computer used: a) mouse; b) keyboard; c) scanner; d) display screen.
2. The device does not have the attribute by which all other devices from the list below are selected: a) scanner; b) plotter; c) graphic display; d) printer.
3. The dot element of the display screen is called: a) point; b) the grain of the phosphor; c) pixel; d) raster.
4. The grid of horizontal and vertical columns, which is formed by pixels on the screen, is called: a) video memory; b) video adapter; c) raster; d) display processor.
5. Graphics with the representation of an image in the form of a set of points is called: a) fractal; b) raster; c) vector; d) straightforward.
6. A pixel on a color display screen is: a) a set of three grains of the phosphor; b) the grain of the phosphor; c) electron beam; d) a collection of 16 phosphor grains.
7. A video adapter is: a) device, work manager graphic display; b) a program that allocates video memory resources; c) an electronic, volatile device for storing information about a graphic image; d) display processor.
8. To store a 256-color image per pixel you need: a) 2 bytes; b) 4 bits; c) 256 bits; d) 1 byte.
9. In the process of converting a raster graphic file, the number of colors decreased from 65,536 to 256. The file size will decrease by: a) 4 times; b) 2 times; c) 8 times; d) 16 times.
10. Application vector graphics compared to raster: a) does not change the way the image is encoded; b) increases the amount of memory required to store the image; c) does not affect the amount of memory required for storing the image and the laboriousness of image editing; d) Reduces the amount of memory required to store the image and makes it easier to edit the latter.
The dot element of the display screen is called
matrix cell video pixel phosphor grain raster
Graphics with the representation of an image in the form of collections of points is called
vector fractal raster 3D graphics
The grid of horizontal and vertical columns, which is formed by pixels on the screen, is called
video memory raster image resolution image vector
A pixel on a color display screen is
phosphor grain a set of three phosphor grains a set of 16 phosphor grains an electron beam
Specify a device that does not have the attribute by which all other devices from the list below are selected
display printer plotter scanner
The video adapter is:
a device that controls the operation of the monitor a program that allocates video memory resources a volatile device for storing information about graphic image driver to control the monitor
Video memory is
a computing device that controls the operation of the monitor a program that allocates PC resources during image processing a volatile device for storing information about a graphic image driver for controlling the operation of a monitor
Graphics with the representation of an image in the form of curves, the coordinates of which are described by mathematical equations, is called
linear vector raster three-dimensional
Applying vector graphics versus bitmap ... (please state correct)
reduces the amount of memory required to store an image and makes it easier to edit the latter increases the amount of memory required to store an image does not affect the amount of memory required to store an image and does not change the way the image is encoded on the laboriousness of image editing
A graphic image represented in the computer memory in the form of a description of a set of points with an indication of their coordinates and color shade is called
raster vector fractal linear
RBG color coding method is generally applied ...
when scanning images when encoding images for output to a printer when encoding images for output to a plotter when encoding images displayed on a monitor screen
To store a 256-color image per pixel, you need
1 byte 2 bytes 4 bits 256 bits
In the process of converting a raster graphic file, the number of colors decreased from 65,536 to 256. The file size will decrease by ...
2 times 8 times 16 times 256 times
How many colors can be encoded with 24 bits per pixel?
24 192 16 777 216 4 294 967 296
Calculate in megabytes the size of a bitmap image of 1280x1024 pixels with a color depth = 24
0,46875 2,4 3,75 30
How many bits per pixel is needed for a color image encoded with an indexed color palette?
GIF format - Supports up to ...
16 colors 256 colors 65,536 colors 16,777,216 colors
Basic bitmap image format for Windows, supported by all applications
PSD PDF GIF WMF BMP
Universal vector image format for Windows applications
PSD PDF GIF WMF BMP
Raster image format with support for up to 256 colors, transparency, multiple frames in one file, LZW compression
PSD PDF GIF WMF BMP
Raster image format with 24-bit color coding support, selectable compression ratio (lossy), most common on web pages
TIFF GIF JPEG BMP CDR
Raster image format with support for 24-bit color coding, LZW compression, most often used in printing when saving files for later printing
TIFF GIF JPEG BMP CDR
Native image format of the most common vector editor
TIFF GIF JPEG BMP CDR
Select bitmap formats
WMF GIF JPEG BMP CDR
Choose the correct statements
The CMYK color model is used for the reflected color The RGB color model is used for the emitted color The RGB color model is most often used for printing images The CMYK color model is most often used for viewing images from a monitor
Select vector formats
WMF GIF JPEG BMP CDR
Calculate in bytes the size of a bitmap image 800x600 pixels with a color depth = 8
3 750 60 000 480 000 3 840 000
Calculate in kilobytes the volume of a bitmap image of 1024x768 pixels with a color depth = 8
96 768 1024 786 432
Calculate in bytes the volume of a bit (monochrome) image of 1024x768 pixels
768 1024 98 304 786 432
Calculate in bytes the volume of a 16-color image 800x600 pixels
468,75 60 000 240 000 1 920 000
Calculate in kilobytes the volume of a 256-color image 800x600 pixels
468,75 60 000 240 000 3 840 000
What color in the HSB color model (hue, saturation, brightness) correspond to the values of the parameters (80, 240, 120)?
What color in the RGB color model correspond to the intensity values (0, 0, 255)?
green blue purple red black
What are the values of the intensities of the color components in the CMYK color model correspond to white?
(100, 100, 100, 100)
(255, 255, 255, 255)
What are the values of the intensities of the color components in the RGB color model correspond to white?
(255, 255, 255, 255)
What color in the RGB color model correspond to the values of the intensities of the color components (0, 0, 0)?
red
green
The grayscale depth of grayscale images is
4 bits 8 bits 16 bits 256 bits
The depth of monochrome images is
1 bit 1 byte 2 bits 2 bytes
The color depth of images in the RGB model is
The color depth of images in the CMYK model is
1 byte 2 bytes 3 bytes 4 bytes
Option 1.
1.How many bits of video memory do you need to encode one pixel of a 4-color image?
2. It takes 6 bits to store the color information of one pixel. How many colors can be displayed on the screen in this case?
3.What is the minimum amount of video memory required to store a 16-color image if the resolution of the monitor is 500 * 512?
4. The video memory is divided into 2 pages. The resolution of the monitor is 1024 * 768. Calculate the amount of video memory if the bit depth is 9.
5. The volume of the video memory of the computer is 250 Kbytes. The resolution of the monitor is 500 * 512. How many screen pages will fit in the video memory at the same time with a palette of 16 colors?
Option 2.
1.How many bits of video memory are required to encode one pixel of a 16-color image?
2. It takes 7 bits to store the color information of one pixel. How many colors can be displayed on the screen in this case?
3.What is the minimum amount of video memory required to store a 256-color image if the resolution of the monitor is 640 * 480?
4.Video memory is divided into 3 pages. The resolution of the monitor is 500 * 512. Calculate the amount of video memory if the bit depth is 8.
5. The volume of the video memory of the computer is equal to 937.5 Kbytes. The resolution of the monitor is 800 * 600. How many pages of the screen will fit in the video memory at the same time with a palette of 256 colors?
Option 3.
1.How many bits of video memory do you need to encode one pixel of an 8-color image?
2. It takes 9 bits to store the color information of one pixel. How many colors can be displayed on the screen in this case?
3.What is the minimum amount of video memory required to store a 32-color image if the resolution of the monitor is 1024 * 768?
4.Video memory is divided into 4 pages. The resolution of the monitor is 800 * 600. Calculate the amount of video memory if the bit depth is 6.
5. The volume of the video memory of the computer is 900 Kbytes. The resolution of the monitor is 640 * 480. How many pages of the screen will fit in the video memory at the same time with a palette of 256 colors?
Option 4.
1.How many bits of video memory do you need to encode one pixel of a 512-color image?
2. It takes 3 bits to store the color information of one pixel. How many colors can be displayed on the screen in this case?
3.What is the minimum amount of video memory required to store a 16-color image if the resolution of the monitor is 640 * 480?
4. The video memory is divided into 2 pages. The resolution of the monitor is 500 * 512. Calculate the amount of video memory if the bit depth is 10.
5. The volume of the video memory of the computer is 375 Kbytes. The resolution of the monitor is 400 * 512. How many screen pages will fit in the video memory at the same time with a palette of 32 colors?
>> Informatics 9th grade >> Informatics: Uzagalnyuchy lesson (9th grade)
Practical robot to subject Informatics class 9.
Looking at those: Cozy lesson (9th grade)
GRAPHICS EDITOR
TEST
1. One of the main functions graphic editor is an:
1. input of images;
2. storage of the image code;
3. creation of images;
4. viewing and displaying the contents of video memory.
2. The elementary object used in the raster graphics editor is:
1.screen point (pixel);
2. rectangle;
3. circle;
4. palette of colors;
5.symbol.
3. Deformation of the image when changing the size of the picture - one of the disadvantages:
1. vector graphics;
2. bitmap graphics.
4. Primitives in a graphics editor are:
1. the simplest figures, drawn with the help of special tools of the graphic editor;
2. operations performed on files containing images created in a graphical editor;
3. environment of a graphical editor;
4. operating mode of the graphic editor.
5. Buttons on the toolbar, palette, working area, menu form:
1. a complete set of graphical primitives of a graphical editor;
2. environment of a graphic editor;
3. a list of operating modes of the graphical editor;
4. a set of commands that can be used when working with a graphical editor.
6. The smallest element of the screen surface for which the address, color and intensity can be set is:
1.point;
2. the grain of the phosphor;
3.pixel;
4.Raster.
7. The grid which is formed by pixels on the screen is called:
1.video memory;
2. video adapter;
3. raster;
4. display processor.
8. Graphics with the representation of an image in the form of a set of points is called:
1. fractal;
2. raster;
3. vector;
4. straightforward.
9. A pixel on the monitor screen is:
1. the minimum area of the image, which can be independently assigned a color;
2. binary code of graphic information;
3. electron beam;
4. a set of 16 phosphor grains.
10. The video adapter is:
1. a device that controls the operation of the monitor;
2. a program that allocates video memory resources;
3. an electronic volatile device for storing information about a graphic image;
4. monitor processor.
11. Video memory is:
1. electronic device for storage binary code the image displayed on the screen;
2. a program that allocates PC resources during image processing;
3. a device that controls the operation of the monitor;
4. a piece of random access memory.
12. To store a 256-color image, the following is allocated for encoding one pixel:
1.2 bytes;
2. 4 bytes;
3.256 bit;
4.1 byte.
13. The color of a point on the screen of a color monitor is formed from the signal:
1. red, green, blue and luminance;
2. red, green, blue;
3. yellow, green, blue and red;
4. yellow, blue, red and white;
5. yellow, blue, red and luminance.
14. A raster graphic file contains a black and white image (no grayscale) with a size of 100 x 100 pixels. What is the informational volume of this file:
1.10000 bits;
2. 10000 bytes;
3. 10 Kbytes;
4.1000 bits.
15. A raster graphic file contains a black-and-white image with 16 shades of gray, 10 x 10 pixels in size. What is the informational volume of this file:
1.100 bits;
2.400 bytes;
3.800 bit;
4.100 bytes?
16. For binary encoding a colored drawing (256 colors) with a size of 10 x 10 points is required:
1.100 bits;
2.100 bytes;
3.400 bit;
4.800 bytes.
KEY
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
3 1 2 1 2 3 3 2 1 1 1 4 1 1 2 2
Added by the reader of computer science Kirichenko V.M.
Planning lessons from informatics online, teaching and learning by class, home teaching from 9th grade
»[Teacher] [Tests] [Graphic editor]
GRAPHICS EDITOR
TEST
1. One of the main functions of the graphic editor is:
- image input;
- storing the image code;
- creation of images;
- viewing and displaying the contents of video memory.
2. The elementary object used in the raster graphics editor is:
- screen point (pixel);
- rectangle;
- circle;
- Color palette;
- symbol.
3. Deformation of the image when changing the size of the picture - one of the disadvantages:
- vector graphics;
- raster graphics.
4. Primitives in a graphics editor are:
- the simplest figures drawn with the help of special tools of the graphic editor;
- operations performed on files containing images created in a graphical editor;
- a graphical editor environment;
- operating mode of the graphic editor.
5. Buttons on the toolbar, palette, working area, menu form:
- full set of graphical primitives of a graphical editor;
- a graphical editor environment;
- a list of the graphical editor operating modes;
- a set of commands that can be used when working with a graphical editor.
6. The smallest element of the screen surface for which the address, color and intensity can be set is:
- point;
- phosphor grain;
- pixel;
- raster.
7. The grid which is formed by pixels on the screen is called:
- video memory;
- video adapter;
- raster;
- display processor.
8. Graphics with the representation of an image in the form of a set of points is called:
- fractal;
- raster;
- vector;
- straightforward.
9. A pixel on the monitor screen is:
- the minimum area of the image, which can be independently assigned a color;
- binary code of graphic information;
- electron beam;
- a set of 16 phosphor grains.
10. The video adapter is:
- a program that allocates video memory resources;
- an electronic volatile device for storing information about a graphic image;
- monitor processor.
11. Video memory is:
- an electronic device for storing the binary code of the image displayed on the screen;
- a program that allocates PC resources during image processing;
- a device that controls the operation of the monitor;
- part of random access memory.
12. To store a 256-color image, the following is allocated for encoding one pixel:
- 2 bytes;
- 4 bytes;
- 256 bit;
- 1 byte.
13. The color of a point on the screen of a color monitor is formed from the signal:
- red, green, blue and brightness;
- red, green, blue;
- yellow, green, blue and red;
- yellow, blue, red and white;
- yellow, blue, red and brightness.
14. A raster graphic file contains a black and white image (no grayscale) with a size of 100 x 100 pixels. What is the informational volume of this file:
- 10,000 bits;
- 10,000 bytes;
- 10 KB;
- 1000 bit.
15. A raster graphic file contains a black-and-white image with 16 shades of gray, 10 x 10 pixels in size. What is the informational volume of this file:
- 100 bits;
- 400 bytes;
- 800 bit;
- 100 bytes?
16. For binary coding of a color picture (256 colors) with a size of 10 x 10 points, you need:
- 100 bits;
- 100 bytes;
- 400 bits;
- 800 bytes.
KEY
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| 3 | 1 | 2 | 1 | 2 | 3 | 3 | 2 | 1 | 1 | 1 | 4 | 1 | 1 | 2 | 2 |