- 1. What was the first company to release a commercially successful portable calculator?
A) Sharp
B) HP
C) Casio
D) Texas Instruments
- 2. Which type of display technology is commonly used in modern portable calculators?
A) LCD
B) OLED
C) LED
D) CRT
- 3. What is the term for a portable calculator capable of performing complex mathematical functions?
A) Financial Calculator
B) Basic Calculator
C) Scientific Calculator
D) Graphing Calculator
- 4. Which company introduced the first pocket-sized calculator in 1971?
A) Canon
B) Casio
C) HP
D) Sharp
- 5. What does 'DPI' stand for in the context of portable calculators?
A) Device Programming Interface
B) Digital Pixel Index
C) Dynamic Processor Integration
D) Dots Per Inch
- 6. Which type of mathematical notation is commonly used in advanced portable calculators?
A) RPN
B) PI
C) BODMAS
D) LCM
- 7. What is the maximum number of digits displayed on a typical portable calculator?
A) 10
B) 12
C) 14
D) 8
- 8. What is the purpose of the 'M+' button on a calculator?
A) Subtract from Memory
B) Memory Copy
C) Multiply Memory
D) Add to Memory
- 9. What is the term for a portable calculator used primarily for financial calculations?
A) Graphing Calculator
B) Financial Calculator
C) Scientific Calculator
D) Basic Calculator
- 10. What is the purpose of the 'CE' button on a calculator?
A) Complete Equation
B) Compute Expression
C) Cancel Equation
D) Clear Entry
- 11. Which of the following is a common feature in basic calculators?
A) Complex Functions
B) Statistical Analysis
C) Addition
D) Matrix Operations
- 12. Who is credited with inventing the first handheld electronic calculator in 1967?
A) Jack Kilby
B) Thomas Edison
C) Alexander Graham Bell
D) Albert Einstein
- 13. What is the purpose of the 'memory' function on a calculator?
A) Take pictures
B) Store temporary values
C) Make phone calls
D) Order food online
- 14. Which mathematician is known as the 'Father of the Computer' and made significant contributions to the development of calculators?
A) Charles Babbage
B) Isaac Newton
C) Leonhard Euler
D) Euclid
- 15. What does the acronym 'CAGR' stand for in finance and business calculations?
A) Compound Annual Growth Rate
B) Corporate Annual Governance Report
C) Continuous Annual Growth Ratio
D) Calculating Adjustable Growth Rate
- 16. What year was the first modern handheld calculator introduced commercially by Texas Instruments?
A) 1980
B) 1995
C) 1972
D) 1960
- 17. What feature on a calculator allows for quick correction of mistakes in data entry?
A) Delete all button
B) Screen brightness adjustment
C) Backspace key
D) Volume control
- 18. What unit of measurement is commonly used to quantify the speed of calculator processors?
A) Megahertz
B) Newton
C) Gigabyte
D) Kilowatt
- 19. What mathematical constant is represented by the symbol 'π' on calculators?
A) Pi
B) Gamma
C) Sigma
D) Delta
- 20. Which type of portable calculator uses beads on rods to perform calculations?
A) Eniac
B) Slide rule
C) Comptometer
D) Abacus
- 21. What is the function of the 'x2' button on a calculator?
A) Divide the displayed number by 2
B) Calculate square root
C) Square the displayed number
D) Double the displayed number
- 22. What is the term for the number by which a dividend is divided in a division calculation?
A) Quotient
B) Addend
C) Divisor
D) Multiplier
- 23. In which decade did handheld calculators become popular consumer products?
A) 1980s
B) 1960s
C) 1990s
D) 1970s
- 24. What type of calculations do financial calculators excel at?
A) Interest and time value of money calculations
B) Caloric intake calculations
C) Distance and speed calculations
D) Chemical reaction calculations
- 25. Which programming language is commonly used for creating calculator applications?
A) Java
B) C++
C) Ruby
D) Python
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