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Learning notes 5: ram and ROM
2022-07-07 00:48:00 【Mo_ chni】
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1. use U Disk mounting system , Found unplug U After hours windows pe Can also be used ?
3. stay pe Things inside are also stored in memory
RAM(Ramdom Acc ess Memory, Random storage memory )
ROM(Read Only Memory, Read only storage memory )
The biggest difference :RAM The data saved on it will disappear after power failure , and ROM Data can be saved after power failure
For example, the memory module in the computer belongs to RAM, The optical drive for reading optical discs belongs to ROM
Related scenes :
1. use U Disk mounting system , Found unplug U After hours windows pe Can also be used ?
because pe Generally, it is only loaded into memory , So after loading U The disc can be pulled out , But the power was cut off , In memory pe The system will disappear
2. Why does a loose memory module cause the boot screen to go blank ( Or other phenomena ), You can't get into the system ?
Because the operating system starts first BIOS This program will copy the data in the boot area of the boot disk into memory , then CPU Then get data from memory for processing , To get into the system , So when the memory module is loose ( Equivalent to no memory module ), You can't get into the system .
3. stay pe Things inside are also stored in memory
Once I heard the master in the group say , stay pe Things inside are also stored in memory , Because after he fills the memory with things , The computer has a blue screen , I am diligent and inquisitive [doge] ask : How did blue screen solve it later ? The master slowly typed two words : restart
See light suddenly , So that's it
ps: Restart without power failure , but ram Things in will be deleted
4. The CD says “CD-ROM”
CD-ROM Both CD-ROM , Data can only be written once , Then read the contents through the optical drive
Recently, the learning state is a little poor , Always want to wake up and learn , But sleep until noon , There is also some delay in the content to be learned , Generally speaking, the action force can't keep up ,emmm, It's too hard
Last , Adjust your state , Learning is so interesting , come on. !
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