Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Commodore_REU> ?p ?o. }
Showing items 1 to 37 of
37
with 100 items per page.
- Commodore_REU abstract "Commodore's RAM Expansion Unit (REU) range of external RAM add-ons for their Commodore 64/128 home computers was announced at the same time as the C128. The REUs came in three models, initially the 1700 (128 KB) and 1750 (512 kB), and later the 1764 (256 kB, for the C64).The need for the REU came about when Commodore management decided to not use the final version of the custom Memory Management Unit(MMU)which then limited the size of memory in spite of early discussion of a larger memory map. Engineers traveling to the 1985 CES show were confronted with flyers and billboards advertising a memory size that was no longer supported and finally the most upper management finally asked where the additional memory (Up to 512K) would plug in.By the time of the 1985 CES show in Chicago, the engineers were able to display a spinning globe of the earth as a demonstration of Direct Memory Access (DMA) memory access of the new REU units.The REU hardware was designed by Frank Palia and the dedicated Integrated Circuit (IC) was designed by Victor Andrade. Fred Bowen and Terry Ryan adapted the Kernal and Basic to accommodate the REU natively and Hedley Davis wrote the globe spinning demo which was an impressive display of animation in the mid 1980's.".
- Commodore_REU thumbnail Commodore_1764_REU.jpg?width=300.
- Commodore_REU wikiPageExternalLink ram_expansion_unit_reu.
- Commodore_REU wikiPageExternalLink 17XX.
- Commodore_REU wikiPageExternalLink ramdos.zip.
- Commodore_REU wikiPageID "779656".
- Commodore_REU wikiPageRevisionID "596359804".
- Commodore_REU hasPhotoCollection Commodore_REU.
- Commodore_REU subject Category:CBM_storage_devices.
- Commodore_REU subject Category:Commodore_64.
- Commodore_REU subject Category:Home_computer_peripherals.
- Commodore_REU subject Category:Memory_expansion.
- Commodore_REU type Artifact100021939.
- Commodore_REU type CBMStorageDevices.
- Commodore_REU type Device103183080.
- Commodore_REU type ElectronicEquipment103278248.
- Commodore_REU type Equipment103294048.
- Commodore_REU type HomeComputerPeripherals.
- Commodore_REU type Instrumentality103575240.
- Commodore_REU type MemoryDevice103744840.
- Commodore_REU type Object100002684.
- Commodore_REU type Peripheral103916720.
- Commodore_REU type PhysicalEntity100001930.
- Commodore_REU type Whole100003553.
- Commodore_REU comment "Commodore's RAM Expansion Unit (REU) range of external RAM add-ons for their Commodore 64/128 home computers was announced at the same time as the C128. The REUs came in three models, initially the 1700 (128 KB) and 1750 (512 kB), and later the 1764 (256 kB, for the C64).The need for the REU came about when Commodore management decided to not use the final version of the custom Memory Management Unit(MMU)which then limited the size of memory in spite of early discussion of a larger memory map.".
- Commodore_REU label "Commodore REU".
- Commodore_REU label "Commodore REU".
- Commodore_REU label "RAM Expansion Unit".
- Commodore_REU sameAs RAM_Expansion_Unit.
- Commodore_REU sameAs Commodore_REU.
- Commodore_REU sameAs m.03bqns.
- Commodore_REU sameAs Q2124010.
- Commodore_REU sameAs Q2124010.
- Commodore_REU sameAs Commodore_REU.
- Commodore_REU wasDerivedFrom Commodore_REU?oldid=596359804.
- Commodore_REU depiction Commodore_1764_REU.jpg.
- Commodore_REU isPrimaryTopicOf Commodore_REU.
