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Cumulative Review
Digital World
| Question | Answer |
|---|---|
| How does a computer store text? | Each character is stored as a number. |
| ASCII. | Translates numbers into text. (American Standard Code Information Interchange) |
| True or False: ASCII only has English and some European characters. | True. |
| Can be used to enter special characters instead of ASCII. | Unicode/UTF-8. |
| DOC/DOCX. | Microsoft word document, can contain formatted text, images, backgrounds. |
| Open Office Text Format. | Free software that is similar to Microsoft Office. |
| PDF. | Portable Document Format, a file format that is great for printed documents, originally by Adobe, but now is an open format, not meant to be edited, virtual paper, used for books and magazines. |
| HTML. | Hyper Text Markup Language, used to create webpages, plain text files, zip files are compressed folders, one file can store many. |
| XML. | Plain text used to store structured data |
| Operating System. | Communication between the hardware (physical machine) and software. |
| Examples of operating systems for mobile devices. | Apple IOS 10, Google Android, MAC OS, Windows 7. |
| Digital. | Numeric. |
| MP3, Wav, and Flac. | Used to format music. |
| Photos are made of _____________. | Pixels. (Tiny dots of color.) |
| How is the quality of a photo determined? | How many pixels there are. |
| Colors of pixels are stored as levels of __________, _______________, and ____________, ranging from ___________ to ______________ | Red, green, blue, 0, 255. |
| Basic unit of storage. | Byte. |
| White. | 255, 255, 255. |
| Black. | 0, 0, 0. |
| Grey. | All three colors equal. |
| How many colors are possible? | 16.8 million. |
| Bitmap Image. | An uncompressed file where each pixel is given three numbers for red, green, and blue. |
| JPG/JPEG. | Most common file format for digital photos, compressed with a slight loss of quality . |
| GIF. | Used for clip art and simple animations, limited to 256 colors. |
| PNG. | Is not used for digital photos, no loss of quality, transparent colors. |
| SVG. | Scalable Vector Graphic, image is not stored with pixels, file stores directions (circles, lines, colors) to make the shapes, actually a text file. |
| How does a computer store audio? | Stores a numeric picture of the sound wave. |
| How many bytes for one song? | 32 MB. |
| MP3. | Audio file is compressed, some quality is lost, most popular format. |
| FLAC. | Free Lossless Audio Codec, audio is compressed without any loss of quality. |
| Streaming services that download the music while they play. | Spotify, Pandora, Apple Music. |
| Around how much data can a hard drive store? | 100 GB-2 TB. |
| Around how much data can a SD camera store? | 4-64 GB. |
| Around how much can a Micro SD card store? | 16-64 GB. |
| USB Drive. | Can easily add local storage to a computer or chrome book, removable storage. |
| SSD. | Solid State Drive, works like a hard drive, much faster, smaller, and uses less energy. |
| Cloud Storage. | Only available with internet connection, rented space on somebody else's hard drive, do not know where it is physically stored, more expensive, available from any advice with internet connection. |
| Txt. | Plain text file, no formatting or margins. |
| DOCX. | New word document format. |
| MPEG. | Compressed video format. |
| How many bits are in a byte? | Eight. |
| File storage and software hosted on servers that are accessed through the web, examples include Microsoft One Drive and Dropbox. | The cloud. |
| A cloud service with a monthly fee designed to compete with Google Docs. | Microsoft Office 365. |
| A Google controlled, open source operating system. | Android. |
| The Microsoft operating system that is used in this lab. | Windows 7. |
| Magnetic storage, primary storage for the PC. | Hard drive. |
| A programming language that runs inside the web browser that adds logic and functionality to webpages. | JavaScript |
| The protocol used by web browsers and servers. | HTTP. |
| The programs on your computer. | Software. |
| Sits between hardware and software to manage the computer's resources. | Operating system. |
| Used to create the content of a webpage. | HTML. |
| All data is encrypted for security. | HTTPS. |
| How much information can be stored on a DVD? | 4.7 GB. |
| How many times larger is a terabyte compared to a megabyte? | 1,000,000. |
| How much storage space is required for a typical digital photo? | 3 MB. |
| Basic unit of storage, a number from 0 to 255, enough information to store a keyboard character. | Byte. |
| 1111. | 15. |
| 1101 0010. | 210. |
| 200. | 1100 1000. |
| 27. | 0001 1011. |
| Undo. | Ctrl Z. |
| Bold. | Ctrl B. |
| Superscript. | Ctrl . |
| Opens with Microsoft Word or Open Office. | Doc. |
| New tab. | Ctrl t. |
| Switch between browser tabs. | Ctrl tab. |
| Close the current tab. | Ctrl w. |
| Open new window. | Ctrl n. |
| What language does Adobe Flash use? | Action Script. |
| Syntax. | Grammar rules of a language. |
| Syntax Error. | When the program breaks a rule. |
| x=x+1. | Increases x by 1. |
| RAM. | Random Access Memory, computers temporary working memory, erased when powered down. |
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emarciante9
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