Data Sizes in Computer Science

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App

Questions and Answers

What is the basic unit of information in computing?

  • A bit (correct)
  • A byte
  • A kilobyte
  • A megabyte

How many bits are in a byte?

  • 16 bits
  • 4 bits
  • 32 bits
  • 8 bits (correct)

What is the approximate number of bytes in a kilobyte?

  • 500 bytes
  • 1,000 bytes
  • 1,024 bytes (correct)
  • 100 bytes

How many megabytes are in a gigabyte?

<p>1,024 MB (C)</p> Signup and view all the answers

How many bytes are in a terabyte?

<p>1 trillion bytes (C)</p> Signup and view all the answers

What is the primary difference between a bit and a byte?

<p>A bit is a single binary digit, while a byte is a group of 8 bits (C)</p> Signup and view all the answers

How many kilobytes are in a single megabyte?

<p>1,024 kilobytes are in a megabyte (D)</p> Signup and view all the answers

What is the approximate storage capacity of a typical CD?

<p>650-700 MB (D)</p> Signup and view all the answers

Which of the following is NOT true about a gigabyte?

<p>A gigabyte is a common size for a CD (C)</p> Signup and view all the answers

What is the approximate file size of a high-resolution image?

<p>1-5 MB (B)</p> Signup and view all the answers

Flashcards are hidden until you start studying

Study Notes

Data Sizes in Computer Science

Bit vs Byte

  • A bit is the basic unit of information in computing and represents a single binary digit (0 or 1).
  • A byte is a group of 8 bits that can represent a character, number, or other type of data.
  • 1 byte = 8 bits

Data Sizes: Kilobyte to Gigabyte

  • Kilobyte (KB): 1 KB = 1,024 bytes (approx. 1 thousand bytes)
  • Megabyte (MB): 1 MB = 1,024 KB (approx. 1 million bytes)
  • Gigabyte (GB): 1 GB = 1,024 MB (approx. 1 billion bytes)
  • Terabyte (TB): 1 TB = 1,024 GB (approx. 1 trillion bytes)

Key Conversions:

  • 1 KB = 1,024 bytes
  • 1 MB = 1,024 KB = 1,048,576 bytes
  • 1 GB = 1,024 MB = 1,073,741,824 bytes

Bits and Bytes

  • A bit is the basic unit of information in computing, representing a single binary digit (0 or 1).
  • A byte is a group of 8 bits that can represent a character, number, or other type of data.
  • 1 byte is equal to 8 bits.

Data Sizes

  • A kilobyte (KB) is a unit of measurement that equals 1,024 bytes (approximately 1 thousand bytes).
  • A megabyte (MB) is a unit of measurement that equals 1,024 kilobytes (approximately 1 million bytes).
  • A gigabyte (GB) is a unit of measurement that equals 1,024 megabytes (approximately 1 billion bytes).
  • A terabyte (TB) is a unit of measurement that equals 1,024 gigabytes (approximately 1 trillion bytes).

Key Conversions

  • 1 kilobyte (KB) equals 1,024 bytes.
  • 1 megabyte (MB) equals 1,024 kilobytes, or 1,048,576 bytes.
  • 1 gigabyte (GB) equals 1,024 megabytes, or 1,073,741,824 bytes.

Data Sizes

  • Bit: The basic unit of information in computing, representing a single binary digit (0 or 1)
  • Byte: A group of 8 bits, used to represent a single character or number

Data Measurement Units

  • Kilobyte (KB): 1,024 bytes
  • Megabyte (MB): 1,024 kilobytes (1,048,576 bytes)
  • Gigabyte (GB): 1,024 megabytes (1,073,741,824 bytes)
  • Terabyte (TB): 1,024 gigabytes (1,099,511,627,776 bytes)

Notable Conversions

  • 1 Megabyte (MB) is equal to 1,024 Kilobytes (KB)
  • 1 Gigabyte (GB) is equal to 1,024 Megabytes (MB)
  • 1 Terabyte (TB) is equal to 1,024 Gigabytes (GB)

Common Data Sizes

  • A typical text document is usually between 1-10 Kilobytes (KB)
  • A high-resolution image is usually between 1-5 Megabytes (MB)
  • A CD storage capacity is around 650-700 Megabytes (MB)
  • A DVD storage capacity is around 4.7 Gigabytes (GB)

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser