Difference between revisions of "Model A"
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components and interfaces. | components and interfaces. | ||
| − | Internal | + | '''Internal''' |
* 16Kb of RAM instead of 32Kb (The empty spaces were fitted with sockets to simplify upgrades) | * 16Kb of RAM instead of 32Kb (The empty spaces were fitted with sockets to simplify upgrades) | ||
* 6522 VIA Chip | * 6522 VIA Chip | ||
| − | Rear interface sockets | + | '''Rear interface sockets''' |
* RGB port | * RGB port | ||
* Serial port | * Serial port | ||
* Analogue port | * Analogue port | ||
| − | Underside interface sockets | + | '''Underside interface sockets''' |
* Tube | * Tube | ||
* User port | * User port | ||
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* 1MHz Bus | * 1MHz Bus | ||
| − | + | All of these components could be installed to bring the machine up to full Model B specifications, and many were. | |
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Revision as of 12:21, 12 September 2020
The BBC Model A was created as a lower-cost variant to encourage higher sales outside of the schools sector. It was launched at a price of GBP £235 (compared with GBP £335 for the Model B). This price rose to GBP £299 as Acorn found they couldn't make it at the lower price.
While physically identical, the Model A lacked a number of internal components and interfaces.
Internal
- 16Kb of RAM instead of 32Kb (The empty spaces were fitted with sockets to simplify upgrades)
- 6522 VIA Chip
Rear interface sockets
- RGB port
- Serial port
- Analogue port
Underside interface sockets
- Tube
- User port
- Centronics (printer) port
- 1MHz Bus
All of these components could be installed to bring the machine up to full Model B specifications, and many were.
