Across
- 2. Half a byte.
- 5. A number system consisting of 1s and 0s.
- 6. A form of compression where data is discarded in order to significantly reduce file size.
- 7. Another name for binary. (2 words)
- 10. Number system using 0-9 and A-F.
- 12. The amount of data each pixel uses to represent colour information. (3 words)
- 14. A form of compression where no data is discarded.
- 15. Standard way of representing text.
- 17. Operation used to multipy or divide a binary number by powers of 2. (2 words)
- 20. A method of representing binary negatives that has problems with minus 0. (3 words)
- 21. A technique where each letter in a string is shifted along the alphabet, to hide the meaning of the text. (2 words)
- 23. 8 bits.
- 24. Harddisk capacity is often measured in this unit.
- 25. Occurs when the result of a calculation is too large to fit in the available bits.
Down
- 1. 1024 bytes.
- 3. A technique to represent binary data in a shorter form, saving storage space.
- 4. The capacity of RAM is usually measured in this unit.
- 8. The smallest element of an image.
- 9. How often we take a measurement (e.g. of a sound). (2 words)
- 11. The number of dots that make up an image.
- 13. The preferred way to represent binary negatives. (2 words)
- 16. The smallest piece of data in a computer system.
- 18. Modern way of representing text, using 2 or more bytes.
- 19. Scrambling data to prevent it being understood by unauthorised users.
- 22. Another name for hexadecimal. (2 words)