> On Oct 12, 2016, at 3:29 AM, jim stephens <jwsm...@jwsss.com> wrote:
> I had a 133 column line printer, and an 80 column Data Printer, Data products 
> interfaces.  Both drums.  They could both move 3 x 5 cards at 10000+ lines / 
> min when printing < 20 columns.  They were variable speed, so when something 
> fired on the first 20 columns, such as for addressing, the thing move like 
> lighting.

The early PDP11 line printers were like that (20 column buffer for the 80 
column model; 24 column buffer for the 132 column model).  Later on they 
apparently went to full line buffering because the performance oddity you 
mentioned disappeared.

Speaking of printer widths, the Dutch computer company Electrologica was odd in 
that their systems came with line printers that were 144 columns wide.  I've 
never seen that anywhere else.


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