Which of the following represents the denary value 43 in 8-bit binary?
GCE O-Level · Computing (7155)
Data Representation:練習問題
その場で採点される選択問題 5 問と、解説つきの記述問題 5 問。すべて「Data Representation」からの出題です。
A specialized digital sensor uses a 6-bit two's complement system to represent temperature readings. What is the denary value of the largest positive integer that can be represented in this system?
Consider an 8-bit two's complement system. What is the result of the binary addition \(01011010 + 11010011\) in denary?
What is the denary equivalent of the 8-bit unsigned binary number 01011010?
Perform the binary addition: \(01101100 + 00111010\). What is the result in denary?
State the hexadecimal representation of the denary number 255 and explain how you arrived at the answer.
まず自分で答えを書いてから、解説と照らし合わせましょう。
Identify the 8-bit two's complement binary representation for the denary value \(-128\). Justify your answer briefly.
まず自分で答えを書いてから、解説と照らし合わせましょう。
A digital system uses 8-bit two's complement. If the binary value is \(1000\,0101_2\), determine its denary value by showing the weight assigned to the Most Significant Bit (MSB).
まず自分で答えを書いてから、解説と照らし合わせましょう。
Explain how computers use 8-bit extended ASCII to represent the English word "CODE". Your explanation should include:
(a) The process of how each character is stored as a bit pattern.
(b) Why 8 bits are sufficient for the extended ASCII character set compared to standard ASCII.
まず自分で答えを書いてから、解説と照らし合わせましょう。
Binary representation of signed and unsigned integers is essential for computer processing.
(a) State the maximum positive denary value that can be represented in an 8-bit two's complement binary system.
(b) Determine the 8-bit two's complement representation of the denary number \(-45\). Show your steps.
(c) Using 8-bit two's complement binary addition, add the binary value of \(-45\) from part (b) to the binary value of \(-20\) (given as \(11101100_2\)). State the resulting 8-bit binary value and whether an arithmetic overflow occurs.
まず自分で答えを書いてから、解説と照らし合わせましょう。
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