Operating System (OS)
Identify false statement

You can restore any files in recycle bin if you ever need
You can right click and choose Empty Recycle Bin to clean it at once
You can find deleted files in recycle bin
You can increase free space of disk by sending files in recycle bin

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Operating System (OS)
Daisy chain is a device for

connecting a number of devices to a controller
None of these
connecting a number of controllers to a device
All of these
interconnecting a number of devices to a number of controllers

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Operating System (OS)
The function(s) of the Syntax phase is(are)

to parse the source program into the basic elements or tokens of the language.
to build a literal table and an identifier table
None of these
to build a uniform symbol table
to recognize the major constructs of the language and to call the appropriate action routines that will generate the intermediate form or matrix for these constructs.

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Operating System (OS)
The Memory Buffer Register (MBR)

None of these
is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
is a hardware memory device which denotes the location of the current instruction being executed.
contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write".
contains the address of the memory location that is to be read from or stored into.

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