All questions of Operating System for Bank Exams Exam

Internal memory is the computer memory used for storing programs and data that are currently being processed by the CPU. It is also known as primary memory or main memory. Internal memory is directly accessed by the CPU and plays a crucial role in the overall performance of the computer system.

Key Points:
- Internal memory is an essential component of a computer system as it provides the necessary storage space for the CPU to execute instructions and process data.
- It is volatile memory, which means that the stored information is lost when the power supply to the computer is turned off.
- Internal memory is made up of integrated circuits, which are capable of storing and retrieving data at a very high speed.
- It is divided into two types: RAM (Random Access Memory) and ROM (Read-Only Memory).
- RAM is used for storing data and instructions that are currently being executed by the CPU. It allows for fast read and write operations, making it ideal for temporary storage.
- ROM, on the other hand, is used for storing permanent data and instructions that are essential for the computer to function. It retains its contents even when the power is turned off.
- The size of internal memory varies depending on the computer system. It can range from a few gigabytes to several terabytes in modern computers.
- The CPU constantly accesses the internal memory to fetch instructions and data, perform calculations, and store the results. The speed and capacity of the internal memory directly impact the overall performance of the computer system.
- Internal memory works in conjunction with other components of the computer, such as the CPU, cache memory, and secondary storage devices, to ensure efficient processing and storage of data.
- In summary, internal memory is a critical component of a computer system that provides fast and temporary storage for programs and data currently being processed by the CPU. It enables the efficient execution of instructions and plays a crucial role in the overall performance of the system.

DOS, which stands for Disk Operating System, is an operating system that runs from a disk drive. It was one of the earliest operating systems developed for personal computers. DOS became popular in the 1980s and early 1990s, primarily due to its simplicity and compatibility with a wide range of hardware.

Here is a detailed explanation of why the correct answer is option 'A' - Disk Operating System:

1. Disk Operating System (DOS):
DOS is an operating system that is designed to be loaded and run directly from a disk drive, such as a hard disk or floppy disk. It is a single-user, single-tasking operating system that provides a command-line interface for interacting with the computer.

2. Drive Operating System:
The option 'B' - Drive Operating System is not the correct answer. While DOS does operate from a disk drive, it is not specifically designed to manage or control the drive itself. Instead, it is an operating system that utilizes the disk drive to store and execute its files.

3. Durable Operating System:
The option 'C' - Durable Operating System is not the correct answer. The term "durable" refers to the ability of a system to withstand failure or damage. DOS, however, does not possess any specific features or characteristics that make it particularly durable.

4. Divided Operating System:
The option 'D' - Divided Operating System is not the correct answer. DOS is not divided into separate components or modules that perform specific functions. It is a relatively simple operating system that provides basic file management and command execution capabilities.

5. Disk Opaque System:
The option 'E' - Disk Opaque System is not the correct answer. The term "opaque" refers to something that is difficult to understand or see through. DOS, on the other hand, is a relatively transparent operating system that allows users to directly interact with the underlying hardware and software.

In conclusion, the correct answer is option 'A' - Disk Operating System. DOS is an operating system that runs from a disk drive and provides a command-line interface for users to interact with the computer.

Format command for dividing the blank sector surface into a different partition
Formatting a storage device such as a hard drive or USB drive involves preparing the blank sector surface for data storage by creating partition tables and file systems. The format command is often used to divide the blank sector surface into different partitions.

Importance of partitioning
- Partitioning allows users to organize and separate data into different sections on a storage device.
- It helps in managing data more efficiently by allocating specific amounts of space for different purposes.
- Partitioning can also improve performance and security by isolating system files from user files.

Steps to partition using the format command
1. Open the command prompt window on your computer.
2. Type the command "format" followed by the drive letter of the storage device you want to partition (e.g., format D:).
3. Specify the desired file system type for the partition (e.g., NTFS, FAT32).
4. Follow the on-screen instructions to complete the partitioning process.

Caution when using the format command
- Formatting a storage device will erase all existing data on it, so make sure to back up important files before proceeding.
- Double-check the drive letter to avoid accidentally formatting the wrong drive.
- Be cautious when partitioning system drives to avoid disrupting the operating system's functionality.
By following these steps and being mindful of the precautions, you can effectively use the format command to divide the blank sector surface into different partitions on a storage device.