SESSION 11 : create an avatar

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SESSION 19: Image formats, storing, publishing and sharing

PART 1: IMAGE FORMATS. ACTIVITY. a) Find out the most common formats for images and write a short description of the features of each of them JPEG: JPEG is short for Joint Photographic Experts Group, and is the most popular among the image formats used on the web. JPEG files are very ‘lossy’, meaning so much information is lost from the original image when you save it in a JPEG file. This is because JPEG discards most of the information to keep the image file size small; which means some degree of quality is also lost. GIF GIF, short for Graphics Interchange Format, is limited to the 8 bit palette with only 256 colors. GIF is still a popular image format on the internet because image size is relatively small compared to other image compression types. GIF is most suitable for graphics, diagrams, cartoons and logos with relatively few colors. GIF is still the chosen format for animation effects. BMP The Windows Bitmap or BMP files are image files within the
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SESSION 31: What is inside a computer?

Image
a. BIOS (Basic Input/Output System - 1 -  The BIOS setup program above is used to setup a computer's hardware.  The BIOS chip contains enough information to operate the computer all by itself. b. Microprocessor - 3 -  The microprocessor,   is the brain of the computer. The central processing unit, (or CPU), with its level 1 cache memory, contains the control unit and the arithmetic/logic unit, both working together as a team to process the computer's commands.   c. Drive Bays - 4 -  Drive bays are where the computer's drives are installed. CD-ROM and DVD-ROM drives can only play disks. CD R/RW and DVD R/RW drives can both play and record to disks d. Memory - 7 -  A memory module has several memory chips. The computer uses this memory constantly to temporarily store information, (or data), while it is working with it.   e. Case Fan - 5 -  The case fan is in charge of keeping the computer cool. f. Chipset - 2 -  The chipset is the chip, or set of chips, t
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