In Linux Professional: PE15 (CH) 1 – why is the max RAM for a 32-bit OS...

In Linux Professional:

PE15 (CH)
1 – why is the max RAM for a 32-bit OS 4 GiB?
2 – virtual memory is called what on Linux? Where is it located?
3 – how many CPU(s) does the VM have?
4 – list all PCI devices; how many of them are there?
5 – Without looking these up, try to spell-out these acronyms:
BIOS, UEFI, SCSI, IDE, SATA, IRQ, DMA, PCI

Expert Solution

Answer 1
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Every byte of RAM requires its own address, and the processor limits the length of those addresses. A 32-bit processor uses addresses that are 32 bits long. There are only 4,294,967,296, or 4GB, possible 32-bit addresses.

Answer 2
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swap space , it is located at /etc/fstab

Answer 3
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4max 1min

Answer 4
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lspci - list all PCI devices

lspci -t

-t
Show a tree-like diagram containing all buses, bridges, devices and connections between them.

Answer 5
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BIOS : basic input/output system
UEFI : Unified Extensible Firmware Interface
SCSI : Small Computer System Interface
IDE : integrated development environment
SATA : Serial Advanced Technology Attachment
IRQ : Interrupt Request Line
DMA : Direct Memory Access
PCI : Peripheral Component Interconnect

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venereology answered 4 hours ago

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