softwares

• What are the two main types of software?

  Application software and system software
• What is the purpose of application software?

  It enables the computer to perform specific tasks, such as word processing
• What does system software do?

  It acts as an interface between computer hardware and user application programs
• What are the components included in system software?

  The operating system and utility programs
• What is the function of the operating system in memory allocation?

  It organizes the use of main memory between programs and data files
• How does the operating system manage storage?

  It manages the storage of data and files in external devices
• How does the operating system allocate processing time?

  It divides time into slices and allocates them based on task priority
• What are the modes of processing in computing?

  • Real-time processing
  • Batch processing
  • Multi-user system
• What is real-time processing?

  Data is processed immediately after it is input
• Name an application that uses real-time processing.

  Airline ticket booking systems
• What is batch processing?

  Data is collected over time and processed together later
• Name an application that uses batch processing.

  Payroll systems for a weekly or monthly pay run
• What is a multi-user system?

  It allows many users to process data at different times
• Name an application that uses a multi-user system.

  Database management systems
• What is the role of utility application software?

  It performs specific tasks to assist the operating system
• What does disk defragmentation do?

  It rearranges data on a hard disk for quicker access
• What is the purpose of backup and restore?

  A backup is a copy of data to restore the original if lost
• What is the difference between a full backup and an incremental backup?

  A full backup copies all data, while an incremental backup copies only changed data
• What is the main purpose of anti-virus software?

  To detect, locate, and remove viruses from a computer system
• How does a virus affect a computer system?

  A virus can damage the system, prevent booting, or slow performance
• How does anti-virus software scan for viruses?

  It compares files to a known database of viruses
• What should you avoid when working with batch processing systems?

  Do not interrupt processing or continue the task
• What are the common mistakes to avoid in batch processing systems?

  • Do not interrupt processing
  • Do not continue the task during processing
• What are the main functions of system software?

  • Manage hardware and application software
  • Allocate memory and processing time
  • Manage storage of data and files