1902638
Description
Flashcards by rwc.carlton, updated more than 1 year ago
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Created by rwc.carlton
about 9 years ago
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| Question | Answer |
| Data Representation | representing data within computer systems is done by turning switches on and off |
| Binary | all data is represented by 1s and 0s (on and off) in computers |
| Denary | Counting system humans use Base 10 |
| Hexidecimal | Used to read binary as 16 bit of data can be represented by a single character Base 16 |
| Images | Made of an arrangement of pixels Pixels are stored in binary Higher the resolution the better the picture |
| Sound | Stored as binary Sample the analogue to store a digital representation of the original sound Higher the sampling rate the higher the quality |
| Bit | 1 or 0 |
| Nybble | 4 bits |
| Byte | 8 bits |
| Kilobyte | 1024 bytes |
| Megabyte | 1024 kilobytes |
| Gigabyte | 1024 megabytes |
| Terrabyte | 1024 gigabyte |
| Petabyte | 1024 terabytes |
| Exabyte | 1024 pentabytes |
| Zettabyte | 1024 exabytes |
| Yottabyte | 1024 zettabytes |
| ASCII | American Standard Code for Information Interchange |
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