Computer Organization & Architecture Chapter 8 Quiz

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43 Questions

Which system program masks the details of the hardware from the programmer?

Operating system

In which area does the operating system typically provide services for controlled access to files?

System access

What part of the computer hardware and software structure does the operating system provide a convenient interface for using?

Hardware

Which term refers to the system program that provides services for error detection and response?

Operating system

What is the most important function of the operating system as mentioned in the text?

Masks hardware details from the programmer

Which part of the computer hardware and software structure does the operating system not provide services for?

System interconnect (bus)

What does the Application Programming Interface (API) provide for a program?

Access to the computer hardware resources

Which interface defines the system call interface to the operating system and the hardware resources and services available in a system through the user ISA?

Application Binary Interface (ABI)

What is the primary responsibility of the Operating System as a resource manager?

Control of hardware resources and services

What type of system allows the user/programmer to interact directly with the computer to request the execution of a job or perform a transaction?

Interactive system

During the late 1940s to mid-1950s, how did programmers interact with the computer hardware?

Directly, with no operating system

What was a common problem faced by early systems due to lack of scheduling?

Wasted computer idle time

Which type of system involves batching user programs together and submitting them for execution by a computer operator?

Batch system

What enabled application software to be ported easily to other systems that support the same standard?

Application Binary Interface (API)

What is a key function of the Operating System as mentioned in the text?

Control mechanism for hardware resources

Which type of system allows users/programmers to communicate with the computer during the execution of a job?

Interactive system

Operating System (OS) Services

typically provides services in the following areas: Controlled access to files

The ______ barked

ABI

The ______ meowed

OS

The ______ barked

I/O

The ______ barked

Interactive

The ______ barked

Programmers

The ______ barked

dog

The ______ meowed

control

The ______ barked

Operator

The ______ barked

OS

The ______ barked

System

What is the term used to refer to the collection of different instructions that the processor can execute?

Machine instruction

What does the operation code (opcode) specify in a machine instruction?

The operation to be performed

What is the purpose of the source operand reference in a machine instruction?

It specifies the inputs for the operation

What is the role of the result operand reference in a machine instruction?

It specifies where to store the result of the operation

What does the next instruction reference in a machine instruction indicate?

Where to fetch the next instruction after execution

What is the binary code specifying the operation to be performed known as in a machine instruction?

Operation code (opcode)

What is the purpose of the Operand address calculation in the instruction cycle?

To locate the source operand in the memory

What does the representation of Opcodes by abbreviations called mnemonics allow programmers to do?

Easily remember and use the opcodes in programming

What is the primary function of Arithmetic instructions as mentioned in the text?

Provide computational capabilities for processing numeric data

What is NOT a primary responsibility of the Operating System as a resource manager according to the text?

Provide capabilities for processing any type of data

What does the immediate area contain as mentioned in the text?

The value of the operand is contained in a field in the executed instruction

What is the role of Test instructions as mentioned in the text?

Used to test the value of a data word or the status of a computation

What is meant by Operand fetch as part of the instruction cycle?

Locating the source operand in memory based on its address

What does Logic (Boolean) instructions operate on as mentioned in the text?

The bits of a word as bits rather than as numbers

What type of system allows users/programmers to communicate with the computer during execution of a job?

Time Sharing System

What is a key function of the Operating System as mentioned in the text?

Manage computer resources efficiently

Study Notes

Operating System (OS) Services

  • The Operating System (OS) masks the details of the hardware from the programmer.
  • The OS provides services for controlled access to files in the file management area.
  • The OS provides a convenient interface for using the computer hardware and software structure.

System Program

  • The term "system program" refers to the program that provides services for error detection and response.
  • The most important function of the OS is to provide a convenient interface for using the computer hardware and software structure.

Application Programming Interface (API)

  • The API provides a set of libraries and tools for a program to use.

Interface

  • The system call interface defines the interface to the OS and the hardware resources and services available in a system through the user ISA.
  • The primary responsibility of the OS as a resource manager is to manage the allocation and deallocation of system resources.

System Interaction

  • In the early days, programmers interacted with the computer hardware directly.
  • A batch system involves batching user programs together and submitting them for execution by a computer operator.
  • A time-sharing system allows users/programmers to interact with the computer during the execution of a job.

Portability

  • The use of standard APIs enabled application software to be ported easily to other systems that support the same standard.

Instruction Set

  • The term "Instruction Set" refers to the collection of different instructions that the processor can execute.
  • The operation code (opcode) specifies the operation to be performed in a machine instruction.
  • The source operand reference specifies the location of the data to be used in a machine instruction.
  • The result operand reference specifies the location where the result of the operation will be stored.
  • The next instruction reference indicates the location of the next instruction to be executed.
  • The binary code specifying the operation to be performed is known as the opcode.
  • The operand address calculation is used to calculate the address of the operand in the instruction cycle.
  • The representation of opcodes by abbreviations (mnemonics) allows programmers to write instructions more easily.
  • Arithmetic instructions perform arithmetic operations such as addition and subtraction.
  • The immediate area contains the data to be used in the instruction.
  • Test instructions are used to test conditions and make decisions.
  • Operand fetch involves retrieving the operands (data) needed for the instruction.
  • Logic (Boolean) instructions operate on binary values (true or false).
  • The OS is not responsible for managing the allocation of the keyboard.

Test your knowledge on operating system support, including application programming interface, application binary interface, software, hardware components, and system interconnect.

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