Computer studies analysis of questions and answers

Describe four disk management tools

14/2/2023

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Describe four disk management tools

Formatting- preparing a new disk for use by imprinting empty sectors and tracks on the surface of the disk so that O.S can recognize and make it accessible
Scanning a storage device for problems - it enables the user to check and repair minor drive problems such as lost storage locations or damaged surfaces
Disk defragementation
Scanningforviruses
Backing up data
Disk partitioning
Disk compression

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State three functions of an operating system

14/2/2023

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State three functions of an operating system

Job scheduling
O.S kernel schedules or determines which task will use the resource at what time
Interrupt handling
breaking from the sequential processing of a task or program by transferring control to a new process that requests to be executed
Resource control an allocation
the O.S maintains a set of queues made up of the processes waiting for a particular resource
I/O management
O.S uses special program called device drivers to manage and communicate with I/O devices
Memory management
Error handling
the O.S performs error checking on hardware, software and data
Job scheduling
OS arranges tasks to be processed in a particular order
Security
The O.S implements security policies such that unauthorised users cant get access to computer or network resource

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List four signs of a computer system invaded by a virus

12/2/2023

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List four signs of a computer system invaded by a virus

Unfamiliar graphics
Programs taking longer than usual to load
Disk accessing being excessive for simple tasks
Less memory available than usual
Mysterious disappearance of programs
Change of disk volume

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Explain four paragraph formatting features

12/2/2023

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Explain four paragraph formatting features

Text alignment
Indentation
Tabs
Line spacing
Bullets and numbering
Drop capping
Section breaks

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Explain two application areas of artificial intelligence

12/2/2023

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Explain two application areas of artificial intelligence

Expert systems
this a software that store the knowledge of human experts band is then used as consultant in a particular field e.g. help doctors diagnose patients
Natural language processing
is the ability of a computer to understand human language and translate it to instructions upon which the computer can understand
Voice recognition
is a system that will allow voice input .the user inputs data by speaking into the microphone
Voice synthesis
these are machines that are able to create human voice or talk
Computer vision
development of computers that will process and interpret lights waves just as the human brain does such a system would use scanning devices to sense and interpret objects, graphics and text character shapes
Neural networks
use electronic devices and software to emulate the neurogical structure of the human being
Robotics
a robot is a computer controlled device that emulates human beings in carrying out tasks that would otherwise be dangerous and difficult (Award Imk for two correct explained answers)

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State four computer laboratory measures that are meant to protect the users

12/2/2023

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State four computer laboratory measures that are meant to protect the users

Insulation of cables to avoid electric shock
Providing standard furniture-to avoid poor posture during machine use which may lead to strain injury and limb fatigue
Providing antiglare screens (light filters) and adjustable screens to avoid eye strain and fatigue caused by over bright cathode ray tube (CRT)
Ventilation of the room to avoid dizziness caused by lack of adequate oxygen
Avoid over bright paints on the walls of computer room to avoid glare caused by bright backgrounds
Avoid overcrowding in the room avoid suffocation
Laying the cables away from the user paths to avoid tripping on them

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Describe three functions performed by the processor

12/2/2023

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Describe three functions performed by the processor

Control Unit
Coordinates all processing activities in the processor as well as input, storage and output operations
Arithmetic Logic Unit
Is unit of a processor where all arithmetic and logical operations are carried
Main Memory (primary storage)
Is the type of memory that is directly accessible by the processor (Award Imk for each correct answer)

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COMPUTER STUDIES QUESTIONS WITH ANSWERS

Describe four disk management tools

Describe four disk management tools

State three functions of an operating system

State three functions of an operating system

List four signs of a computer system invaded by a virus

List four signs of a computer system invaded by a virus

Explain four paragraph formatting features

Explain four paragraph formatting features

Explain two application areas of artificial intelligence

Explain two application areas of artificial intelligence

State four computer laboratory measures that are meant to protect the users

State four computer laboratory measures that are meant to protect the users

Describe three functions performed by the processor

Describe three functions performed by the processor

Categories

Archives

COMPUTER STUDIES QUESTIONS WITH ANSWERS

Describe four disk management tools

​Describe four disk management tools

State three functions of an operating system

​State three functions of an operating system

List four signs of a computer system invaded by a virus

​List four signs of a computer system invaded by a virus

Explain four paragraph formatting features

​Explain four paragraph formatting features

Explain two application areas of artificial intelligence

​Explain two application areas of artificial intelligence

State four computer laboratory measures that are meant to protect the users

​State four computer laboratory measures that are meant to protect the users

Describe three functions performed by the processor

​Describe three functions performed by the processor

Categories

Archives

Describe four disk management tools

State three functions of an operating system

List four signs of a computer system invaded by a virus

Explain four paragraph formatting features

Explain two application areas of artificial intelligence

State four computer laboratory measures that are meant to protect the users

Describe three functions performed by the processor