U UNIVAC 1218 - Bitsavers

storage. The last 18 characters are not signlfican't. The computer must
initiate an output buffer to send the data.
4) Print
This function causes the 1004 printer to print one line consisting of
the 132 characters currently in the print storage. After printing the
line, the 1004 will automatically space to the next line. When 64 lines
of a 66-line page are printed, the 1004 will home paper to a posi tion
defined by a pre-punched paper tape control loop (usually top of next
page).
5) Receive Punch Data
This function transfers a 90-charaeter punch data message from the computer
to the 1004. The first 80 characters are stored in the 1004 punch
storage. The last 10 characters are not significant. The computer must
initiate an output buffer to send the data.
6) Punch
This function causes the 1004 card punch to punch one card containing
the 80 characters currently in the punch storage. The 1004 automatically
translates from the XS-3 code to aO-column card code during this process.
7) Receive Special Data
This function is used for test purposes only. It transfers 90 characters
from the computer to a special storage area in the 1004 memory. This
area is filled in reverse (ascending) order.
8) Transmit Special Data
This function is used for test purposes only. It transfers 90 characters
from the 1004 special storage area to the computer. This area is emptied
in reverse (ascending) order.
9) Space One Line
This function causes the 1004 printer to space one line without printing.
10) Home Paper
This function causes the paper form in the printer to be advanced to a
position defined by a pre-punched paper tape control loop (usually top
of next page).
11) Punch Blank Card
This function clears 1004 punch storage and causes one blank card to be
punched.
II-F-5