computer essintials 2

a program consists of a set of related instructions that tell the machine what tasks to perform and how to perform them

• Hardware

• Software

It is responsible for managing the computer's hardware and resources

• system software

• utitlity software

Finctions of operating system

• Process Management

• Memory Management

• File System Management

• All of the above

The OS ensures unauthorized users do not access

• True

• False

The most common interface in personal computers, tablets, and smartphones.

It uses windows, icons, buttons, and menus

• Graphical User Interface (GUI)

• Command-Line Interface (CLI)

GUIs is more powerful and flexible than Command-Line Interface (CLI)

• True

• False

Responds to input immediately. Used in systems where there are tight constraints on response time like in an airbag system in cars

• Multitasking/Time-sharing OS

• Real-time OS

• Distributed OS

• Embedded OS

Android, iOS, Windows Phone, BlackBerry OS are examples of

• Desktop OSs

• Mobile OSs

• Server OSs

• Embedded Systems

Ensure that data isn't lost in case of hardware failure or accidental deletions.

• antimalware

• Backup utilities

• File Compression

• Disk Cleaners

Used for detecting and removing malicious software from a computer

• antimalware

• Backup utilities

• File Compression

• Disk Cleaners