Bits, Bytes, & File Size
Unit 4 Summary
Heather Lyons, A Beginner's Guide to Our Digital World (Kids Get Coding),amazon.com, August, 2016
Heather Lyons, A Beginner's Guide to Our Digital World (Kids Get Coding),amazon.com, August, 2016
The largest memory is in Terabyte.
The largest storage is in Yottabyte.
More than that are fake names created or proposed by people on the internet.
Sordum Team, Online Data Size Converter, www.sordum.org, September 2021
1 bit is the smallest unit
1 byte = 8 bits
1 kilobytes = 1000 bytes
1 megabytes = 1000 kilobytes
1 gigabytes = 1000 megabytes
1 terabyte = 1000 gigabytes
Oxford AQA IGCSE 2019
04.3
A bigger image is saved in a file using 32 000 bits.
What is 32 000 bits in kilobytes?
Show your working. [2 marks]
__________________________________________________________________________________
Final answer ____________________________
Answer:
Convert 32000 bits to bytes:
32000/8 = 4000 bytes
Then convert 4000 bytes to kilobytes:
4000/1000 = 4 kB
Alternative answer:
Convert 32000 bit to kilobytes:
32000/8000 = 4 kB
Oxford AQA IGCSE 2020
04.1.
The table below lists different amounts of memory.
Write the numbers 1 to 4 by the amounts of memory to place them into size order, with 1 indicating the smallest amount of memory and 4 the largest. [2 marks]
Answer:
04.2
How many 500 gigabyte files could be stored on a USB flash memory drive that has 4 terabytes of storage space available for files?
Show your working. [2 marks]
__________________________________________________________________________________
Final answer ____________________________
Answer:
Convert 500 gigabytes to terabytes:
500 ÷ 1000 = 0.5 TB
How many 0.5 TB files can fill in a 4 TB storage?
Now divide 4 terabytes by 0.5:
4/0.5 = 8 files
Final Answer: 8.
or 7 because some space will be used for FAT/directory structure.
Alternative answer:
Convert 4 terabytes to gigabytes:
4x1000 = 4000 GB
How many 500 GB files can fill in a 4000 GB storage?
Now divide 4000 gigabytes by 500:
4000/500 = 8 files.
Final Answer: 8.
or 7 because some space will be used for FAT/directory structure.
