Which of the following actions generates an external interrupt? *
1/1
A system call instruction is executed.
Division by zero occurs.
An input/output operation is completed.
A page that does not exist in the main memory is accessed by the virtual storage
management. - ️️An input/output op...
OSG202
Which of the following actions generates an external interrupt? *
1/1
A system call instruction is executed.
Division by zero occurs.
An input/output operation is completed.
A page that does not exist in the main memory is accessed by the virtual storage
management. - ✔️✔️An input/output operation is completed.
Which of the following is not a step in the boot process? *
1/1
The antivirus program checks all files for viruses
Configuration and customization settings are checked
The operating system is loaded into RAM
The BIOS is activated by powering on the CPU - ✔️✔️The antivirus program checks all
files for viruses
The language of the CPU is known as its *
1/1
Instruction set
None of the other choices
Register set
Control unit set - ✔️✔️Instruction set
Which of special register contains the Mode Bit (user or kernel)? *
1/1
Program Status Word (PSW)
Instruction Register (IR)
Program Counter (PC)
None of the other choices - ✔️✔️Program Status Word (PSW)
What part of the boot process determines whether the peripheral devices are working
properly? *
1/1
CMOS
POST
ROM
BIOS - ✔️✔️POST
As one proceeds down the memory hierarchy (from inboard memory to offline storage),
the following conditions apply: *
1/1
Increasing capacity
,Increasing access time
Decreasing cost per bit
All of the other choices - ✔️✔️All of the other choices
Examples of general purpose stored program computers include the following except *
1/1
Personal computers
Network servers
Workstations
MP3 player - ✔️✔️MP3 player
Which of special register contains the condition code bits, the CPU priority, the mode bit
and other control bits)? *
1/1
Instruction Register (IR)
Program Status Word (PSW)
Program Counter (PC)
None of the other choices - ✔️✔️Program Status Word (PSW)
As one proceeds down the memory hierarchy (from inboard memory to offline storage),
which of the following conditions is correct? *
1/1
Increasing access time
None of the other choices
Decreasing capacity
Increasing cost per bit - ✔️✔️Increasing access time
Which of the following statements about Random Access Memory (RAM) is correct? *
1/1
Can only be read sequentially
Stores all the files on the computer
Is volatile
Is typically faster than cache memory - ✔️✔️Is volatile
Which of the following is not a operating mode of CPU *
1/1
Kernel mode
Management mode
User mode
None of the other choices - ✔️✔️Management mode
Which of the following instructions should be allowed in user mode? *
1/1
,Read the time-of-day clock
Set the time-of-day clock
Change the memory map
Disable all interrupts - ✔️✔️Read the time-of-day clock
Where is the position of the operating system in computer system: *
1/1
Above the hardware and under the user interface program
None of the other choices
In user space
Between the user interface program and the application Program - ✔️✔️Above the
hardware and under the user interface program
As one proceeds down the memory hierarchy (from inboard memory to offline storage),
which of the following conditions is correct? *
1/1
Decreasing access time
None of the other choices
Increasing capacity
Increasing cost per bit - ✔️✔️Increasing capacity
Which is not an example of a resource that is commonly time-multiplexed?
1/1
CPU
Main memory
Graphics accelerator
Network interface - ✔️✔️Main memory
Which of the main bus in the IBM PC computer that can run at 66 MHz and transfer 8
bytes at a time? *
1/1
ISA and PCI
None of the other choices
ISA (Industry Standard Architecture)
PCI (Peripheral Component Interconnect) - ✔️✔️PCI (Peripheral Component
Interconnect)
What is not a main function of an operating system? *
0/1
Provide the users with an extended (virtual) machine
Manage the I/O devices
Provide user interfaces
Support virtual memory - ✔️✔️Provide user interfaces
The general role of an operating system is to: *
1/1
, Manage files for application programs
Provide a set of services to system users
None of the other choices
Act as an interface between various computers - ✔️✔️Provide a set of services to
system users
Which is the fastest bus in the IBM PC computer? *
0/1
IDE (Integrated Drive Electronic)
ISA (Industry Standard Architecture)
USB (Universal Serial BUS)
PCI (Peripheral Component Interconnect) - ✔️✔️PCI (Peripheral Component
Interconnect)
Booting a general purpose computer involves the following steps except *
1/1
Loading the OS
Execution of a ROM-based POST sequence
Loading the command interpreter
Loading one or more bootstrap loaders - ✔️✔️Loading the command interpreter
List of memory location, that contains the executable program, the program's data, and
its stack is called: *
1/1
address memory
all of the other choices
address space
set of resources - ✔️✔️address space
What is interrupt vector? *
1/1
The addresses of interrupt handlers
Part of memory which contains the addresses of interrupt handlers
A signal an I/O device sends to CPU
None of the other choices - ✔️✔️Part of memory which contains the addresses of
interrupt handlers
The four main structural elements of a computer system are: *
1/1
Processor, Registers, Main Memory, System Bus
Processor, Registers, I/O Modules, Main Memory
None of the other choices
Processor, Main Memory, I/O Modules, System Bus - ✔️✔️Processor, Main Memory,
I/O Modules, System Bus
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller PatrickKaylian. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £6.47. You're not tied to anything after your purchase.
