Introduction To Computer Science Flashcards
The abacus was created when??
3000 years ago
The pascaline was invented in the year??
1642
The step reckoner was created in the year??
1671
Jacquard’s loom was created in the year
1810
The analytical engine was created in what year??
1832
The table machine was created in what year
1890
Alan Turing worked on the colossus in what year
1943
The ENIAC was created in what year
1946
What was the duration for the first generation of computers
1951-1958
What was the duration for the second generation of computers
1959-1964
What was the duration for the third generation of computers
1965-1970
What was the duration of the forth generation of computers
1971- present
When will the fifth generation of computers start
Future
Who invented the pascaline
Blaise Pascal
Who invented the step reckoner
Gottfried Leibniz
Who invented jacquard loom
Joseph jacquard
Who invented the analytical engine
Charles babbage
Who invented the table machine
Herman Hollerith
Who was the first programmer
Ada Augusta
Who created the ENIAC
John mauchly and presper eckert
First generation computers used…………..as circuits
Vacuum tubes
Second generation computers used……………as circuits
Transistors
Third generation computers used……………as circuits
IC (integrated circuits)
Forth generation computers used………….as circuits
Microprocessor’s
Who started using vacuum tubes as circuits in first generation computers
Conrad zuse
Who invented IC’s ( integrated circuits)
Jack kilby
Who invented microprocessor’s
Ted hoff
What was the speed of the first generation of computers
Milliseconds
Thousands of operations per second
What was the speed of the second generation of computers
Microseconds
Millions of operations per second
What was the speed of the third generation of computers
Nanoseconds
Billions of operations per second
What is speed of forth generation computers
Picoseconds
Trillions of operations per second
What will be the speed of fifth generation computers
Gigaseconds
Quadrillions of operations per second
What features will the fifth generation of computers have?
Artificial intelligence
Natural language: communicate with computer using everyday language
Parallel processing: ability to process millions of instructions simultaneously
The macintosh was invented in what year
1984
Who invented the macintosh
Steve jobs
Steve Wozniak
What was the programming language of second generation computers
COBOL, Symbolic and fortran
Who developed the transistors
William Shockley, Walter Brattain and John Bardeen
Based on John von Neumann concept all computers process data based on four specific activities which are
Input data
Store data
Process data
Output data/results
How many circuits per cubic foot did the first generation have??
6000
How many circuits per cubic foot did the second generation computers have
100,000
How many circuits per cubic foot did third generation computers have??
10 million
How many circuits per cubic foot do the forth generation computers have
Over 500 billion
…………. was the first computers to have graphical user interface
Macintosh
……….. was the first programmable computer available for personal use
Macintosh
