During the 1960s and much of the 1970s, most computer systems were __________.

Utilities in Europe provide electricity at 220 volts

Indicate whether the statement is true or false

To add two nodes node1 and node2 to the the first row in a GridPane pane, use ________.

a. pane.add(node1, 0, 0); pane.add(node2, 1, 0); b. pane.add(node1, node2, 0); c. pane.addRow(0, node1, node2); d. pane.addRow(1, node1, node2); e. pane.add(node1, 0, 1); pane.add(node2, 1, 1);