2 Complete the sentences with one or two words from the article. 1 Some children use an abacus to learn how to do 2 Charles Babbage's computer had several different 3 The first person to program a computer was. 4 Colossus was as big as a 5 Modern more than the biggest computers of the past. YOX so are small but can do​

Ответ:

What ware Napier’s bones?

Ans: John Napier designed a system of calculating rods for quick multiplication and division.They were square in cross section and a set consisted of nine rods, numbered 1 to 9.

Which types of calculating could be done using Stepped Reckoner?

Ans: Stepped Reckoner was devised to perform addition, subtraction, multiplication, division and to find square root.