1.Convert the binary number 11010 to octal.
2.What is the relationship between a byte and a gigabyte?
3.Arrange these storage devices in order of typical capacity: RAM, Hard Disk, USB Drive.
4.What is ASCII, and what is one limitation of it?
5.How does Unicode improve over earlier coding systems like EBCDIC?
Ruwan Suraweera Changed status to publish 1 day ago
1.
Answer: 11010 in octal is 32.
Description: Group binary digits into sets of 3 from right: 011 010. Convert each: 011 = 3, 010 = 2. Result is 32.
Description: Group binary digits into sets of 3 from right: 011 010. Convert each: 011 = 3, 010 = 2. Result is 32.
2.
Answer: A byte is 8 bits, and a gigabyte is 1,073,741,824 bytes (2³⁰ bytes).
Description: Data storage units increase exponentially: 1 KB = 1024 bytes, 1 MB = 1024 KB, 1 GB = 1024 MB. A gigabyte holds vastly more data than a single byte.
Description: Data storage units increase exponentially: 1 KB = 1024 bytes, 1 MB = 1024 KB, 1 GB = 1024 MB. A gigabyte holds vastly more data than a single byte.
3.
Answer: Hard Disk > USB Drive > RAM.
Description: Hard disks typically store terabytes, USB drives store gigabytes, and RAM is smaller (gigabytes) as it’s temporary storage.
Description: Hard disks typically store terabytes, USB drives store gigabytes, and RAM is smaller (gigabytes) as it’s temporary storage.
4.
Answer: ASCII (American Standard Code for Information Interchange) is a coding system using 7 or 8 bits to represent characters. A limitation is it only supports 128 (7-bit) or 256 (8-bit) characters, excluding many global alphabets.
Description: ASCII assigns numbers to letters, digits, and symbols (e.g., ‘A’ = 65), but it’s insufficient for languages like Chinese or Arabic.
Description: ASCII assigns numbers to letters, digits, and symbols (e.g., ‘A’ = 65), but it’s insufficient for languages like Chinese or Arabic.
5.
Answer: Unicode uses up to 32 bits and supports over 1 million characters, covering all global scripts, unlike EBCDIC’s 8-bit, 256-character limit.
Description: EBCDIC was IBM-specific and limited, while Unicode’s flexibility makes it the modern standard for text encoding.
Description: EBCDIC was IBM-specific and limited, while Unicode’s flexibility makes it the modern standard for text encoding.
Ruwan Suraweera Changed status to publish 2 days ago
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