Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Domain | Definition |
Computing | Content addressable memory (CAM, or "associative memory") A kind of storage device which includes comparison logic with each bit of storage. A data value is broadcast to all words of storage and compared with the values there. Words which match are flagged in some way. Subsequent operations can then work on flagged words, e.g. read them out one at a time or write to certain bit positions in all of them. A CAM can thus operate as a data parallel (SIMD) processor. CAMs are often used in caches and memory management units. (1995-02-16). Source: The Free On-line Dictionary of Computing. |
Source: compiled by the editor from various references; see credits. | |
(From Wikipedia, the free Encyclopedia)
When reading usual ram, one supplys an address and gets data. With CAM, one supplies data and gets an address.
CAM does a quick search on its memory to find the address that holds data matching the search criteria. The search is very fast - sometimes as fast as reading regular ram.
For example: a usual use for CAM by a router is mapping Ethernet MAC addresses (48 bit long) to IP (Internet protocol) addresses (32 bit long). To use a usual ram (Random access memory) for this purpose, one needs 256 Tera (2^48) addresses, each 32 bits wide. This will map every MAC address possible to an IP address. This is really not necessary as there are only 2^32 IP addresses possible and there are usually not that many seen by a single router. CAM is the better way to do it, as it can store only a subset of the MAC-IP mapping in a smaller memory.
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Content addressable memory."
Crosswords: CONTENT ADDRESSABLE MEMORY |
| Specialty definitions using "CONTENT ADDRESSABLE MEMORY": associative memory. (references) |
| The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com. |
| Expression | Frequency per Day |
content addressable memory | 19 |
| Source: compiled by the editor from various references; see credits. | |
Scrabble® Enable2K-Verified Anagrams | |
| Words within the letters "a-a-b-c-d-d-e-e-e-e-l-m-m-n-n-o-o-r-r-s-s-t-t-y" | |
-5 letters: electrodynamometers. | |
| Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. | |
Hexadecimal (or equivalents, 770AD-1900s) (references)43 4F 4E 54 45 4E 54 41 44 44 52 45 53 53 41 42 4C 45 4D 45 4D 4F 52 59 |
| Leonardo da Vinci (1452-1519; backwards) (references)
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Binary Code (1918-1938, probably earlier) (references)01000011 01001111 01001110 01010100 01000101 01001110 01010100 00100000 01000001 01000100 01000100 01010010 01000101 01010011 01010011 01000001 01000010 01001100 01000101 00100000 01001101 01000101 01001101 01001111 01010010 01011001 |
HTML Code (1990) (references)C O N T E N T   A D D R E S S A B L E   M E M O R Y |
ISO 10646 (1991-1993) (references)0043 004F 004E 0054 0045 004E 0054 0041 0044 0044 0052 0045 0053 0053 0041 0042 004C 0045 004D 0045 004D 004F 0052 0059 |
Encryption (beginner's substitution cypher): (references)37494854394854235383852395353353646392473947495259 |
| 1. Crosswords 2. Expressions: Internet 3. Anagrams 4. Orthography | 5. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
