System software Flashcards

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1
Q

What is an operating system and what does it do?

A

A group of programs that manage the computer’s resources.

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2
Q

What are the functions of an operating system?

A

Providing a user interface, Memory management, Peripheral management, User management, File management, Multitasking

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3
Q

What does a user interface do?

A

It enables users to interact with computer hardware

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4
Q

What are the different types of user interfaces?

A

Graphical user interfaces, command-line interfaces, Voice activated interfaces

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5
Q

What does WIMP stand for?

A

Windows Icons Menus Pointers

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6
Q

What is system software?

A

Software that controls computer hardware and acts as a platform for other software

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7
Q

What are the advantages of using a command-line interface?

A

It is quicker to use and requires less memory

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8
Q

What are the disadvantages of using a command-line interface?

A

It is hard to understand for the everyday user and commands have to be typed precisely

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9
Q

What is a device driver?

A

A program that controls the peripheral devices

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10
Q

What is user management?

A

The management of usernames and passwords as well as what permissions the accounts have

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11
Q

What are the two types of software in system software?

A

Application software, Utility software

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12
Q

What are examples of utility software?

A

Data Compression software, Antivirus software, Defragmentation software, Encryption software, Backup software

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13
Q

What does defragmentation software do?

A

It arranges fragments of files in the same place on the disk so that the arm doesn’t have to move much which makes read times faster and frees up space

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14
Q

What does backup software do?

A

It makes sure that regular copies of data are made so that data is not totally deleted

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15
Q

What are the two types of backup?

A

Incremental, Full

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16
Q

How does an incremental backup work?

A

Copies are made from files that have been edited since the last backup

17
Q

How does full backup work?

A

A copy of every file on the computer is made which takes up a lot of storage and is time consuming

18
Q

What are the 3 main types of malware?

A

Trojan, Worm, Virus

19
Q

What is a virus?

A

A program that attaches itself to other programs to replicate itself. It harms computers by deleting and modifying files

20
Q

What is a worm?

A

A program that replicates itself without the need of attaching itself to other files. It harms computers and networks by slowing them down

21
Q

What is a trojan?

A

A programs that pretends to have good intentions but actually intends to do harm to a computer

22
Q

What is social engineering?

A

The act of exploiting humans to gain access to data

23
Q

What are other threats to computers aside from malware?

A

Brute force attack, Denial of service attack, SQL Injection, Data interception and theft, Phishing, Poor network policy, People

24
Q

What is an SQL Injection?

A

Where SQL code is inserted as data input and can cause data in a database to be changed

25
Q

How are threats to networks prevented?

A

Penetration testing, Network policies, Encryption, Anti-malware software, User Access levels, Firewalls, Physical Security

26
Q

What do firewalls do?

A

They prevent hackers from accessing files on a network as well as block access to inappropriate sites

27
Q

What is penetration testing?

A

Testing done by employed hackers to see whether a network can withstand an attack

28
Q

What are example of physical security?

A

CCTV cameras to detect intruders that might try to steal hard drives, Security locks at the entrance of rooms containing hard drives with sensitive data.

29
Q

What does file management software allow users to do?

A

Move files, Rename files, Create files, Edit files, Delete files, Restore deleted files, Set access rights to files

30
Q

How does anti-malware software work?

A

A computer is scanned and any malware detected is removed and is kept in the company’s database so they can identify the malware if it infects another computer

31
Q

What is the difference between anti-malware and anti-virus?

A

Anti-virus provides real time scans of file while anti-malware provides periodic scans, Anti-malware is more up-to-date than anti-virus