LGP-30 Memory Drum Update

Jon Elson elson at pico-systems.com
Wed Jan 4 12:01:52 CST 2017

On 01/04/2017 06:05 AM, Christian Corti wrote:
> The LGP-30 is similar, but the timing and long tracks 
> (i.e. main memory) are not recirculating. Hence the reason 
> why a word is limited to 31 bits, although the sector 
> holds 32 bits. The last bit must be zero to reset the read 
> circuitry for the next sector.
So, there is no inter-word gap to accommodate the write head 
switching?  I guess if everything is hard-synched to the 
clock track, then you can get away without that.  Interesting!


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