Computer Science: Binary and Decimal Systems

Kilobyte is 10^3 or 1000 bytes, while Kibibyte is 2^10 or 1024 bytes.

Turn all '0's to '1's and the '1's to '0's, and add 1.

The CPU discards the overflow digit, which can result in incorrect calculations.

<p>It is easier to debug and reduces errors as it is closer to human language and requires less digits to write.</p> Signup and view all the answers

<p>ASCII code only supports up to 256 characters and does not support many symbols from international languages, whereas Unicode uses 16 bits to cover a majority of different languages across the world.</p> Signup and view all the answers

<p>The tally bit is an extra '1' added at the beginning of the binary representation, which is ignored in the final result. It ensures that the resulting binary number is a valid Two's Complement representation.</p> Signup and view all the answers

<p>Unpacked BCD encoding represents each digit with a fixed number of bits (typically 8 bits), while Packed BCD encoding represents each digit with a nibble (4 bits). Unpacked BCD is easier to work with, but Packed BCD is more compact and efficient for transmission.</p> Signup and view all the answers

<p>Bit 6 is the only difference between uppercase and lowercase letters in the ASCII code, with uppercase letters having a 0 in bit 6 and lowercase letters having a 1 in bit 6.</p> Signup and view all the answers

<p>Unicode groups characters from the same language together and in their natural order, allowing for efficient representation and support of diverse languages. This design enables Unicode to handle a large number of languages and symbols.</p> Signup and view all the answers

<p>Decimal prefixes are more intuitive and easier to understand, as they are based on powers of 10, whereas binary prefixes are based on powers of 2.</p> Signup and view all the answers

<p>One's Complement inverts all bits, while Two's Complement inverts all bits and adds 1. One's Complement is simpler, but Two's Complement is more commonly used and provides a unique representation for negative numbers.</p> Signup and view all the answers

<p>The 8-bit code in ASCII limits the range of characters that can be represented to 256, which is insufficient for many international languages and symbols.</p> Signup and view all the answers

<p>Hexadecimal representation is closer to human language and reduces errors due to fewer digits to write, making it easier to debug and detect errors.</p> Signup and view all the answers

<p>BCD coding allows for decimal numbers to be represented in binary, which is easier to understand and work with, especially for human-readable data. BCD coding is separate from binary arithmetic, which operates on binary numbers.</p> Signup and view all the answers

<p>The 16-bit code in Unicode allows for a much larger range of characters to be represented, but requires more space and memory compared to the 8-bit code in ASCII.</p> Signup and view all the answers