## 9th Class Computer Science Chapter 5 Number Systems MCQs TEST 1:

Computer Science Chapter 5 – Number Systems Test 1

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**The ASCII is a code?**

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**The EBCDIC is a code?**

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**The collection of facts and figures is called?**

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**The data after processing is called?**

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**The set of characters including 26 characters of English alphabets and 10 decimal digits is called?**

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**Computers directly understand digits?**

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**Computer did not directly understand?**

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**45, 26, 15, 40 is a?**

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**Data is classified into typed?**

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**Binary numbers are?**

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**Real data contains numbers, which may be?**

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**The base of decimal number system is?**

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**The data is represented on a computer by means of a two state ON and OFF system called?**

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**The base of binary number system is?**

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**The base of octal number system is?**

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**The binary number system is used in?**

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**The base of hexadecimal number system is?**

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**Alphanumeric characters are expressed in terms of binary codes. In ASCII each character is represented as a?**

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**2’s complement of 1011.1 is?**

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**I’s complement of 1011.1 is?**

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## 9th Class Computer Science Chapter 5 Number Systems MCQs TEST 2:

Computer Science Chapter 5 – Number Systems Test 2

1 / 15

**A byte consist of nibbles?**

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**10° =?**

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**The digit from 0 to 9 are called?**

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**The binary equivalent of ( 20) _{10 }is?**

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**The decimal equivalent of ( 20) _{10} is?**

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**Decimal number system consists of?**

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**453 =?**

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**The decimal equivalent of (10) _{s} is?**

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**(236) _{10} = (?) _{10 ?}**

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**(A) _{16 }=?**

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**In 645 the most significant digit is?**

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**In 724 the least significant digit is?**

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**The number system that contains the range of 10 number and 6 alphabets is?**

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**(0001) _{2 }= (?)**

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**Binary digits are denoted by?**

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## 9th Class Computer Science Chapter 5 Number Systems MCQs TEST 3:

Computer Science Chapter 5 – Number Systems Test 3

1 / 15

**01001 _{(2)} in decimal system is equal to?**

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**I’s complement of 01110 is?**

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**In binary number system 0 + 0 =?**

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**In binary number system 1 X 0 =?**

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**ASCII for 6 is equal to?**

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**Which of the following is not a real number?**

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**In Hexadecimal number system the value of E is?**

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**The value of hexadecimal digit A is ?**

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**The number 822 represent the?**

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**Add 01011101 and 00110010?**

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**The binary equivalent of decimal number (3) _{10} is?**

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**The binary equivalent of (F)16 is ?**

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**The hexadecimal equivalent of binary number (101001) _{2} is?**

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**The most commonly used character for transmission are?**

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**In scientific notation power of 10 is called?**

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