Communication and Spreadsheet Terms Explained
Communication and Spreadsheet Terms
Here’s a breakdown of common terms related to communication technologies and spreadsheet software:
Communication Terms
- Size: In a wave, the “height” that reaches the same maximum.
- Wire Communication: Communication established by a physical cable connection between the transmitter and receiver.
- DVD: A storage medium with a capacity of up to 17 GB, commonly used for storing movies.
- Wireless Communication: Communication without any cable between the transmitter and receiver, using electromagnetic waves to transmit information.
- Airwaves: The range of frequencies used for electromagnetic wave transmission.
- Fiberglass: Fine threads of glass used to transmit data, images, or sounds.
- Frequency: In a wave, the number of times the wave oscillates in one second.
- GPS (Global Positioning System): A system used to determine the exact position of a vehicle, person, etc., on the Earth’s surface with an error of a few meters.
- Interference: Noise that disrupts wireless communications.
- Luminophore: On a screen, each element that produces the image.
- MP3: A compression system that reduces the size of an audio file by about ten times compared to an audio CD.
- Wave: A disturbance that propagates through a medium or space, transmitting information.
- Plasma: A type of flat-screen television where the image is formed by electrical impulses stimulating a gas.
- LCD Display: A flat panel display formed by liquid crystals.
- Pit: On a CD or DVD, each indentation on the disc’s surface that stores information.
- Radio: Communication systems employing electromagnetic waves of a specific type.
- Telephony: A communication system that allows real-time communication between two parties.
- Television: A communication system that transmits images and sounds.
Spreadsheet Terms
- Database: A table that includes two or more fields, organizing information on people, sales, or other data.
- Cell: Each individual box that forms the table in a spreadsheet.
- Protected Cell: An area of a spreadsheet, often highlighted, that cannot be changed by a user without the correct password.
- Column: A set of cells aligned vertically in a spreadsheet. Columns are typically labeled with letters (A, B, C, etc.).
- Diagram: A graphical representation of numerical data stored in a table. Diagrams can be lines, columns, sections, etc.
- Row: A set of cells aligned horizontally in a spreadsheet. Rows are numbered from top to bottom (1, 2, 3, etc.).
- Formula: In a spreadsheet, a combination of mathematical operators that calculates a result. Formulas can be entered directly or generated using a wizard.
- Function: In a spreadsheet, a pre-built tool to simplify common calculations. Functions are essentially pre-defined formulas, classified into categories like mathematics, finance, and statistics.
- Sheet: Each individual page within a spreadsheet workbook.
- Spreadsheet: An application used to perform numerical calculations, statistical analysis, and other data processing tasks. It allows for the manipulation of large datasets and the creation of charts and graphs.
- Workbook: The file created and saved by a spreadsheet application.
- Operator: Each symbol that allows for mathematical operations in a spreadsheet, such as +, -, *, /, or ^ (exponentiation).
- Range of Cells: A selection of multiple cells, often adjacent to each other.