JAMB Computer Studies questions: Number systems and data representation

23 questions with answers and explanations. Tap an option to check yourself.

All topics Algorithms and flowcharts · 18 Application packages · 21 Computer hardware and the CPU · 20 Computer networks and the internet · 22 Computer security, ethics and safety · 18 Data processing and information · 18 Evolution of computing · 19 Input and output devices · 18 Logic gates and Boolean algebra · 18 Memory and storage devices · 21 Number systems and data representation · 23 Programming languages and BASIC · 21 Software and operating systems · 20

Question 1· Number systems and data representation· JAMB
The binary equivalent of the decimal number 13 is
Explanation and discussion
Question 2· Number systems and data representation· JAMB
Find the 4-bit two's complement of 0101.
Explanation and discussion
Question 3· Number systems and data representation· JAMB
Convert 1010 1010₂ to hexadecimal.
Explanation and discussion
Question 4· Number systems and data representation· JAMB
Convert 37₁₀ to binary.
Explanation and discussion
Question 5· Number systems and data representation· JAMB
ASCII is a code used to represent
Explanation and discussion
Question 6· Number systems and data representation· JAMB
The two's complement of 0011 (4 bits) is
Explanation and discussion
Question 7· Number systems and data representation· JAMB
Add 47₈ and 25₈, giving the answer in octal.
Explanation and discussion
Question 8· Number systems and data representation· JAMB
Convert 3F₁₆ to decimal.
Explanation and discussion
Question 9· Number systems and data representation· JAMB
Convert 56₈ to base ten.
Explanation and discussion
Question 10· Number systems and data representation· JAMB
Unicode was developed to
Explanation and discussion
Question 11· Number systems and data representation· JAMB
A parity bit is added to data in order to
Explanation and discussion
Question 12· Number systems and data representation· JAMB
Convert 45 (base ten) to binary.
Explanation and discussion
Question 13· Number systems and data representation· JAMB
The one's complement of 1011 is
Explanation and discussion
Question 14· Number systems and data representation· JAMB
The binary-coded decimal (BCD) form of 59 is
Explanation and discussion
Question 15· Number systems and data representation· JAMB
Convert 65₈ to decimal.
Explanation and discussion
Question 16· Number systems and data representation· JAMB
The decimal value of the binary number 10110 is
Explanation and discussion
Question 17· Number systems and data representation· JAMB
The octal number 17₈ written in decimal is
Explanation and discussion
Question 18· Number systems and data representation· JAMB
Convert 3F₁₆ to binary.
Explanation and discussion
Question 19· Number systems and data representation· JAMB
How many different values can 4 bits represent?
Explanation and discussion
Question 20· Number systems and data representation· JAMB
How many different values can be represented with 8 bits?
Explanation and discussion

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JAMB Computer Studies questions: Number systems and data representation

The binary equivalent of the decimal number 13 is

Find the 4-bit two's complement of 0101.

Convert 1010 1010₂ to hexadecimal.

Convert 37₁₀ to binary.

ASCII is a code used to represent

The two's complement of 0011 (4 bits) is

Add 47₈ and 25₈, giving the answer in octal.

Convert 3F₁₆ to decimal.

Convert 56₈ to base ten.

Unicode was developed to

A parity bit is added to data in order to

Convert 45 (base ten) to binary.

The one's complement of 1011 is

The binary-coded decimal (BCD) form of 59 is

Convert 65₈ to decimal.

The decimal value of the binary number 10110 is

The octal number 17₈ written in decimal is

Convert 3F₁₆ to binary.

How many different values can 4 bits represent?

How many different values can be represented with 8 bits?