The first video explores the purpose of both RAM and ROM in a typical computer system.  The differences between the two memory types are outlined.

The second video considers what happens when a modern multi-tasking operating system runs out of physical RAM.  Does it output a “memory full” message and refuse to open a program or data, or is there another way of handling this situation?  This video explores the concept of virtual memory as a solution at a depth required for GCSE.

Flash memory or “solid state” (which means no moving parts) is quickly replacing traditional hard disk drives.  It is also the storage medium of choice in portable devices.  The third video explores some typical uses of flash memory, the reasons for it and some of the disadvantages at a level suitable for GCSE.

Resources:

https://student.craigndave.org/videos/ocr-gcse-slr1-2-ram-and-rom

https://student.craigndave.org/videos/ocr-gcse-slr1-2-the-need-for-virtual-memory

https://student.craigndave.org/videos/ocr-gcse-slr1-2-flash-memory

Show health and safety information

Please be aware that resources have been published on the website in the form that they were originally supplied. This means that procedures reflect general practice and standards applicable at the time resources were produced and cannot be assumed to be acceptable today. Website users are fully responsible for ensuring that any activity, including practical work, which they carry out is in accordance with current regulations related to health and safety and that an appropriate risk assessment has been carried out.

Published by

Actions

Share this resource

Comments