14. OCR GCSE (J277) 1.2 Data capacity calculations
About this video
OCR J277 Specification Reference - Section 1.2
This video explains what is meant by the term “capacity” of storage devices. The relative size of different types of files is introduced. (More detailed explanations of this can be found in the 1.2 Memory and Storage). Data capacity requirements for a range of typical storage scenarios are explained in a similar way to how questions of this nature would be presented in exams.
Don't forget, whenever the blue note icon appears in the corner of the screen, that is your cue to take notes about the content being shown on the current slide.
00:00 Data capacity calculations
00:09 Intro
00:14 Calculating file sizes
04:04 Calculating text file sizes
05:15 Calculating sound file sizes
06:22 Calculating image file sizes
07:20 Recap
07:36 Outro
Last updated: 23.02.26
