Pascal's calculating machine was useful in?    

Arrange the following inventions in chronological order.

I. Slide Rule ll. Pascaline llI. Analytical Engine IV. Difference Engine

Handwritten letters, typeset documents or printout Characters can be read into the computer by?       

which of the following logic operations would select a record when at least one condition is satisfied?        

In Figure 1, the value of Z when X = 1 and Y=0 is?