What is the primary function of an operating system in a laptop?
- A.To type documents
- B.To run internet browsers only
- C.To manage hardware and software resources
- D.To edit videos
Correct answer
Explanation
The correct answer is C, To manage hardware and software resources. An operating system is the system software that loads when a laptop starts and then runs the machine: it shares out memory, decides which program gets the processor and for how long, keeps files and folders in order on the disk, talks to the keyboard, screen and printer through device drivers, and gives the user an interface. Every other program, from a word processor to a game, runs on top of it and asks it for whatever it needs. Windows, macOS, Linux, Ubuntu and Android are common examples. A is wrong because typing documents is the work of an application such as MS-Word. B is wrong because a browser is only one of many programs the operating system supports, not its purpose. D is wrong because video editing is done by application software such as a video editor. Exam tip: an operating system is system software and works as the bridge between the user, the applications and the hardware.
Practice Questions
View allWhich language uses the symbolic representation of machine codes needed to program a particular processor or processor family?
- A.Machine Language
- B.Assembly Language
- C.High-Level Language
- D.All of the above
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Assembly language replaces the binary machine codes of a processor with short symbols called mnemonics, such as MOV, ADD and JMP.
Read the full explanation →Which one of the following is the characteristic of Artificial Intelligence ?
- A.Replicates human decision making
- B.Stores relevant information
- C.Stores similar kind of data for a specific purpose
- D.Allows user to interact with media
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Artificial Intelligence is the ability of a machine to perform tasks that normally need human intelligence, such as reasoning, learning and taking decisions.
Read the full explanation →What is an interactive combination of text, graphics, video, audio and images termed as ?
- A.JPEG
- B.Multimedia
- C.AVA
- D.PNG
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Multimedia means using several forms of media, such as text, graphics, audio, video, images and animation, together, often in a way the user can interact with.
Read the full explanation →Which among the following is a malicious software?
- A.Hacking
- B.Password Cracking
- C.Trojan Horse
- D.Firewall
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A Trojan is a program that looks useful or harmless but secretly carries harmful code, so it is a piece of malicious software, or malware.
Read the full explanation →Which one of the following is not an application software?
- A.Spreadsheet
- B.AutoCAD
- C.MS PowerPoint
- D.Linker
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A linker is system software, a programming tool that joins compiled pieces of code into one program that can run; it does not do a task for the end user.
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