What is the Primary Function of an Operating System Quiz and MCQs

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Questions and Answers

What is the primary function of a Tri-state Buffer in a computer system?

To amplify weak signals

To encode binary data

To decode binary instructions

To avoid loading during read operation (correct)

In a Priority-based scheduling system, what phenomenon can occur when a high-priority process is waiting for a resource held by a low-priority process?

Starvation (correct)

Resource Allocation

System Bus

Deadlock

What is the term for dividing physical memory into fixed-sized blocks?

Paging

Frames

Pages (correct)

Segmentation

Which of the following devices enables the microprocessor to read data from external devices?

Display reader Signup and view all the answers

What is the purpose of swap space in a computer system?

To extend the computer's real memory Signup and view all the answers

What type of error will be handled by the operating system?

All of these Signup and view all the answers

Which of the following components is considered the fastest?

CPU Signup and view all the answers

What is the primary function of a modem?

To transmit computer output over a telephone line Signup and view all the answers

What is the term for a program that is stored in ROM and is used to initialize a computer?

Bootstrap Loader Signup and view all the answers

What is the main function of RAM in a computer system?

To provide temporary storage for data and program instructions Signup and view all the answers

What does EPROM stand for?

Electrically Erasable Programmable Read-Only Memory Signup and view all the answers

What is the primary function of the System call routine in an Operating System?

To perform I/O operations through device drivers Signup and view all the answers

What is the function of a kernel in an operating system?

To manage memory allocation and deallocation Signup and view all the answers

Which type of address is generated by the CPU during program execution?

Physical Address Signup and view all the answers

What is the role of the Instruction Register in a CPU?

To store the instruction most recently fetched Signup and view all the answers

Which of the following is a type of memory that is not directly accessible by the CPU?

Secondary Memory Signup and view all the answers

What is the purpose of a software interrupt?

To request attention from the operating system Signup and view all the answers

What is the term for the agreement between the user and the software provider?

End User License Agreement Signup and view all the answers

Study Notes

Memory and Storage

Cache Memory, External Memory, Secondary Memory, and Virtual Memory are types of memory.
Virtual Memory uses a storage protocol rather than a networking protocol.

Operating System

System call routine in OS performs I/O via the help of Device Driver.
EULA stands for End User License Agreement.
CPU can access Main Memory directly.

CPU and Instruction

Software may trigger an interrupt by executing a special operation called a System call.
The Instruction Register contains the instruction most recently fetched.
Logical Address is generated by CPU during a program execution.

Computer Processing

Physical memory can be divided into fixed-sized blocks called frames.
Logical memory can be divided into fixed-sized blocks called pages.
The processor fetches instructions from backing store during computer processing.

Operating System Errors and Devices

Power failure, lack of paper in printer, and connection problem in the network are errors handled by the operating system.
A joystick is a device that enables the microprocessor to read data from external devices.
A Tri-state Buffer is a device used to avoid loading during read operation.

Scheduling and Resource Management

Starvation generally occurs in a Priority-based scheduling System.
Resource management can be done through System Bus.

Hard Disk and RAM

Swap space is a space on a hard disk used as an extension of a computer's real memory (RAM).
RAM is a volatile memory.

Data and Storage

A kilobyte (KB) is equal to 1024 bytes.
ROM, EPROM, and PROM are types of non-volatile memory.

Computer Devices and Networking

CPU is the fastest among CPU, Magnetic Tapes and Disks, Video Terminal, and Sensors, Mechanical Controllers.
A Modem is a device that converts computer output into a form that can be transmitted over a telephone line.