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65 Cards in this Set
- Front
- Back
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Hyperlink (link)
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Represents a connection to another page and is usually displayed in a Web page as underlined, colored text.
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Uniform Resourse Locator (URL)
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Assigned to each page to easily identify and find a certain page
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Web Server
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An Internet-enabled computer that executes software for providing access to certain Web documents
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Web Browser
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to read HTML you need this special program
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Web page
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Nothing more than a text document written in HTML language
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HTML
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HyperlinkText Markup Language
The language of computers |
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Protocols
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well-defined rules
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Pull-down Menus
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Allow the user to identify and select common commands easily
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Windows
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Represent separate work spaces that can be active at the same time, displaying files or executing programs.
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Graphical User Interface (GUI)
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Uses intuitive visual elements to simplify the process of the viewing files and executing programs.
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Directory
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A collection of the files that are organized together and labeled with a common name.
-can have subfolders |
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File
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A document that stores informative.
Examples: ~Text-Paper ~Image-Picture ~Sound-Song ~Program-Web Browser |
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File System
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Manages the computer's memory organizing storage files and directories.
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Directories
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Folders
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Kernel
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Manages the CPU's operation, controlling how and instructions are loaded from memory and accessed by the CPU.
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Most critical functionality of the computer is controlled by these
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Kernels
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Booted
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Turned on
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Operating System
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A collection of programs that controls how the CPU, memory and I/O devices work together to execute programs.
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System Software
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Manages the resources and behavior of the computer itself.
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DVD-RW
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Allows for reading and repeated writing to the disk.
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DVD
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Store up to 8.5GB of data due to higher-destiny storage and more advanced compression algorithms.
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CD-RW
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patterns are formed in a photosensitive coating on the surface of the disk allowing data to be overwritten repeatedly.
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CD-ROM
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-Compact Disk-Read Only Memory
-The patterns are burned onto the surface of the disk with a laser and therefore cannot be overwritten. |
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CD
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-Compact Disk
-Metal disk that stores up to 700MB of data as patterns on its reflective surface. |
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Hard Disk
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A metal platter that stores bits as magnetized and non-magnetized spots.
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Secondary Memory
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Less expensive and can provide permanent storage.
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Volatile
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Requires a constant flow of electricity to maintain its stored values.
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Main Memory (Primary)
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Holding any and all data that the CPU is actively using.
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Cache and RAM
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Examples of electronic memory.
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Terabyte
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1 trillion bytes.
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Gigabyte
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1 billion bytes.
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Megabyte
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1 million bytes.
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Kilobyte
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1000 bytes.
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Byte
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1 byte = 8 bits
2^8 = 256 |
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Discrete
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Solid numbers.
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Continuous
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Infinite range of possibilities.
-example ~audio analog |
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Binary Digits
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-Bits
-Units of data that correspond to one of two potential values. |
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Digital
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Stores and process info as binary digits.
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Second Memory
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-CD-Rom drive
-Hard-disk drive |
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System Unit
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Contains:
CPU RAM (main memory) Other supporting components |
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Output Devices
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Shows info for the user to observe
-Speakers -Screen |
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Input Devices
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Enters info into the computers
-Mouse -Keyboard |
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Circuitry
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Electronic components wired together to control the flow of electrical signals.
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Stored-Program Computers
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Computers that was the Von Neumann Architecture.
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Buses
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Connect the 3 components of the Von Neumann Architecture
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3 Parts of the Von Neumann Architecture
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-CPU
-Memory -I/O |
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Central Processing Unit (CPU)
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Carries out programmatic steps in order to process data.
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Programs
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Instructions specify the steps necessary to complete specific tasks.
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Memory
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Stores info for the computer to process.
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Input/Output Devices
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Allow the user to communicate with the computer by entering commands and then viewing the results.
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Von Neumann Architecture
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Underlying basic structure of all computers.
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Software
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Programs within the computers.
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Hardware
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Physical components of the computer
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High-end
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More expensive but better quality.
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Low-end
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Less expensive but less quality.
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Computer
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A device that receives, stores, and processes info.
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Supercomputers
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Computers that are large enough to fill entire rooms and can preform trillions of calculations per second.
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Palmtops
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small, handheld devices
-Also called 'mobile devices' ~iPhone ~Droid |
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Laptop
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Small, portable device that integrates all of the computer components into one unit.
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Personal Computer (PC)
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Computer used by 1 person
-Also known as a desktop computer |
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Hypertext
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Text that contains embedded hyperlinks
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< a > & < /a >
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Anchor
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Absolute Address
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That it specifies the URL of a page on the Web.
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Relative Address
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That it specifies a file stored in a location related to that of the Web page itself.
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Multimedia
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Documents that integrate various communication media
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