Answer the following questions in oneor two sentences each:
What ware Napier’s bones?
Ans: John Napier designed a system of calculatingrods for quick multiplication and division.Theywere square in cross section and a set consistedof nine rods, numbered 1 to 9.
Which types of calculating could be done usingStepped Reckoner?
Ans: Stepped Reckoner was devised to performaddition, subtraction, multiplication, division andto find square root.
In what respects was Babbage’s design of AnalyticalEngine similar to that of a modern computer?
OR
Why is Charles Babbage called the father of thecomputer?
Ans: Charles Babbage designed of Analytical Enginehas an input device, a unit for mathematicalcalculations, a control unit, a memory and anoutput device. Which were similar to that of amodern computer.
What is meant by computer generations?
Ans: The development of digital computers is oftendivided into stage or generations. Eachgeneration is characterized by remarkableimprovements over previous generation in thetechnology used to build computers.
Why were first generation computers huge in size?
Ans: First generation computers were made upthousand of vacuum tubes so they were huge insize.
How did the invention of transistor benefitcomputers?
OR
What characteristics make a transistor better
than a vacuum tube?
Ans: Transistors are far superior to vacuumtubes they were occupied less space, consumevery little power and produce less heat.
•Match the columns:
(1) First generation vacuum tubes.
(2) Second generation Transistors
(3) Third generation Integrated Circuits
(4) Fourth generation Microprocessor
(5) Fifth generation Artificial Intelligence
Fill in the blanks:
(1) The _______was the earliest calculating aid.
(2) Napier bones consisted of a set of ______ rods.
(3) Before the invention of electronic calculator, scientistsused the ______ Rule to carry out numerical calculations.
(4) The invention of ___________ fed to the development ofelectronic computers.
(5) Programs for first generation computers were initiallywritten in ______ language.
(6) _______circuits were used to make third generationcomputer.
(7) The graphical user interface and mouse was introduced in______ generation computers.
Fill in the blanks:
(1) The abacus was the earliest calculating aid.
(2) Napier bones consisted of a set of nine/9 rods.
(3) Before the invention of electronic calculator, scientistsused the Slide Rule to carry out numerical calculations.
(4) The invention of vacuum tubes fed to the development ofelectronic computers.
(5) Programs for first generation computers were initiallywritten in machine language.
(6) Integrated circuits were used to make third generationcomputer.
(7) The graphical user interface and mouse was introduced infourth generation computers.
State whether the following statements aretrue or false:
(1) Charles Babbage is known as the father of computer because he designedthe first digital computer.
Ans: False
(2) The invention of transistors made of computer smaller but slower.
Ans: False
(3) FORTAN and COBOL were used in first generation computers.
Ans: True
(4) Keyboard and operating system were introduced in the third generationcomputers.
Ans: True
(5) The microprocessor uses VLSI technology.
Ans: True
(6) Firth generation computer are being developed to have artificialintelligence.
Ans: True