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Worksheets(2ND SEM IT) HISTORY OF COMPUTER
Total questions: 94
Worksheet time: 2hrs 34mins
Electronic device that processes data, converting it into information that is useful to people
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Two types of computer
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Represents data as variable points along a continuous spectrum of values.
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Breaks all types of information into tiny units and use numbers to represent those pieces of information.
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3 PRINCIPAL CHARACTERISTICS OF COMPUTERS:
1. It responds to a specific set of instructions in a ____-_______ ______
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3 PRINCIPAL CHARACTERISTICS OF COMPUTERS:
1. It can execute a (a) list of instructions.
3 PRINCIPAL CHARACTERISTICS OF COMPUTERS
1. It can quickly _____ and ________ large amounts of data.
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In what Year did the first use of the word “computer” and continued to be used in that sense until the middle of the 20th century
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Ancient memory aid
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Aid an individual in performing mathematical calculations.
Invented in Babylonia in 2400 B.C.
Most familiar abacus in China around 500 B.C.
Used for basic arithmetic operations.
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Created by John Napier in 1614
Multiply, divide and calculate square and cube roots by moving the rods around and placing them in specially constructed board.
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Who created the Napier's Bones in 1614?
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When was Napier's Bones was invented?
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Based on Napier's ideas about logarithms.
Used primarily for – multiplication – division – roots – logarithms – Trigonometry.
Not normally used for addition or subtraction.
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Who created the Slide Rule?
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When did William Oughtred created the Slide Rule?
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It was its limitation to addition and subtraction.
It is too expensive.
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Created by Blaise Pascal in 1642
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Who created the Pascaline?
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When did Blaise Pascal created the Pascaline?
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Invented by Gottfried Wilhelm Leibniz in 1672.
Add, subtract, multiply, divide automatically.
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Who created the stepped reckoner?
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When Stepped Reckoner was created?
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A mechanical loom,
Joseph-Marie Jacquard in 1881.
It is an automatic loom controlled by punched cards.
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Who created the Jacquard Loom?
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When was Jacquard loom was created?
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The first mass-produced calculating machine.
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Who created the Arithmometer?
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When was Arithmometer was created?
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It an automatic, mechanical calculator designed to tabulate polynomial functions.
Charles Babbage in 1822 and 1834
It is the first mechanical computer.
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First Mechanical Computer?
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Who created the Difference and Analytical Engine?
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When did Charles Babbage created the Difference and Analytical Engine?
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First Computer Programmer?
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When did Augusta Ada Byron became the first computer programmer?
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Invented by Per Georg Scheutz in 1843
The first printing calculator
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Who invented the Scheutzian Calculation Engine?
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when scheutzian calculation engine was invented?
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Herman Hollerith in 1890.
To assist in summarizing information and accounting.
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who invented the tabulating machine?
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when tabulating machine was created
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To assist in summarizing information and accounting.
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Also known as IBM Automatic Sequence Controlled Calculator (ASCC).
Howard H. Aiken in 1943
The first electro-mechanical computer.
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who invented the harvard mark 1?
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when did howard aiken invented the harvard mark 1?
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the first electro-mechanical computer
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The first programmable computer.
Konrad Zuse in Germany from 1936 to 1938.
To program the Z1 required that the user insert punch tape into a punch tape reader and all output was also generated through punch tape.
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who invented z1?
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when did konrad zuse invented z1?
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The first programmable computer.
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It was the first electronic digital computing device.
Professor John Atanasoff and graduate student Clifford Berry at Iowa
State University between 1939 and 1942.
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who invented Atanasoff-Berry Computer (ABC)
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when was Atanasoff-Berry Computer (ABC) invented?
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It was the first electronic digital computing device
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stands for Electronic Numerical Integrator and Computer.
It was the first electronic general-purpose computer.
Completed in 1946.
Developed by John Presper Eckert and John Mauchly.
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The ENIAC was completed by _ nd _
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ENIAC was completed in what year?
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It was the first electronic general-purpose computer.
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ENIAC stands for
(a)
was the first commercial computer.
Designed by John Presper Eckert and John Mauchly.
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who designed the univac 1
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UNIVAC 1 stands for
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EDVAC stands for
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The First Stored Program Computer
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The First Stored Program Computer
It has a memory to hold both a stored program as well as data.
Designed by Von Neumann in 1952.
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who designed EDVAC
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when did Von Neumann invented EDVAC
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The first portable computer.
Released in 1981 by the Osborne Computer Corporation.
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Osborne 1 was invented in what year
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who invented Osborne 1?
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Founded in 1949 by John Presper Eckert and John Mauchly.
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when was the Electronic Control Company founded?
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Simple picture drawings carved in rocks.
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one of the early alphabets.
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paper created of.
Use of Egyptian scrolls – first books and libraries.
First numbering systems
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• Technologies like the slide rule (an analog computer used for multiplying and dividing) were invented.
• Blaise Pascal invented the Pascaline which was a very popular mechanical computer.
• Charles Babbage developed the difference engine which tabulated polynomial equations using the method of finite differences.
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was created in the early 1800s.
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it was created by Samuel Morse in 1835.
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who created the morse code?
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morse code was invented by samuel morse in what year?
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BLANK (one of the most popular forms of communication ever) was created by Alexander Graham Bell in 1876.
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who created the telephone
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when did alexander graham bell created the first telephone?
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The _ was developed by Guglielmo Marconi in 1894.
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who was the developer of the first radio?
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when did guglielmo marconi developed the first radio
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Marked the start of the digital computing
it is what we currently live in.
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Used for circuitry and magnetic drums for memory, and were often enormous, taking up entire rooms.
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One transistor replaced the equivalent of 40 vacuum tubes.
-Smaller but still used a great deal of electricity, generated a lot of heat
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one transistor is equivalent to how many vacuum tubes
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Transistors were miniaturized and placed on silicon chips, called semiconductors, which drastically increased the speed and efficiency of computers.
- It could carry out instructions in billionths of a second. Much smaller and cheaper compared to the second-generation computers.
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silicon chips are called?
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Thousands of integrated circuits were built onto a single silicon chip.
- Small computers became more powerful that they could be linked together to form networks, which eventually led to the development of the Internet.
- Fourth generation computers also saw the development of GUIs, the mouse, and handheld devices.
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The use of parallel processing and superconductors is helping to make artificial intelligence a reality.
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