Lecture - 19 Virtual Memory

[1sanjaygir1]

Thank you sir...you are doing a great favor for human kind.

[mretibarhasanov]

i prefer indian english than spanenglish . thanks to NPTEL

[Jingouvirgo]

buttta, 2^20 bit is not 1 GB, should be 1 MB instead...

[jayjaygibbs]

@Jingouvirgo

>>> 2**20

1048576

>>> 2**10

1024

[Jingouvirgo]

@jayjaygibbs sorry but I dont understand what you mean by 2**20...

[Jingouvirgo]

this lecture is classic! One of best CA Lectures available in youtube maybe...

nptelhrd, thanks a lot!!!

[starklist]

very nice!

[javacoder1986]

very clear and helpful lecture, thank you !!!

[shivohamaham]

Excellent!! These series of lectures are very useful to me. Thanks for posting them!!!!

[cuzoom]

i love indian accent :D and this lecture is frikking awesome :D

[manussekhar]

8-16mb for a RAM OMG :)

[maddoxhell]

I cant understand a word hes on about

[katariya1000]

its the best video i like and sir lecture is very nice and very useful thanks for adding in it

[Newberer]

He made the same mistake in the previous video - 20 bits represent 1 MEGAbyte, not a GIGAbyte. Still a great video.

[0121ryanh117]

@Newberer 20 Bits represent 1 Megabyte? I beg to differ!

4 Bits = 1 Nybble

8 Bits = 1 Byte

16 Bits = 2 Bytes (Word)

32 Bits = 4 Bytes (DWord)

64 Bits = 8 Bytes (QWord)

[flukeco]

@0121ryanh117:

I think Newberer means 1 MB of memory can be addressed by 20 bits pointer.

[yaswanth26]

@0121ryanh117

Yes 20 bit ==> 2^20 differewnt combinations.

1mb=1024*1024bytes=2^20 bytes

the sytem is taken as each mem location has 8 bits and hence no.of possibilities are 2^20(as byte=8 bits)

so 1MB is pointed out by 20 adresslines