What is computer with figure​

Which of these is most responsible for differences between the twentieth century to the twenty-first century?

Which boolean operator enables you to exclude a search term? a} not b} and c} or d} plus

Consider the usual algorithm to convert an infix expression to a postfix expression. suppose that you have read 10 input characters during a conversion and that the stack now contains these symbols: (5 points) | | | + | | ( | bottom |_*_| now, suppose that you read and process the 11th symbol of the input. draw the stack for the case where the 11th symbol is