January Exam Flashcards
What does the operating system do?
Manage hardware
Manages communication between applications and hardware.
What does the managing processors do?
manages use of the CPU
multi-tasking systems having many programs running at once.
What does the managing memory do?
Releases memory for new processes if no longer required.
What does the managing peripherals do?
Operating system reacts to commands received from devices(input, output, storage)
What does the managing applications do?
Sends and receives instructions to and from applications
Sends instructions to hardware on behalf of applications
What does file management do?
Manages files in secondary storage
What does security do?
Provides a method for users to gain access
Usually a username and password
Access rights - limit what other users can see
What does user interface do?
Provides a user interface
Method for a user to communicate with the computer
What are some examples of graphical user interface?
Windows
Icons
Menus
Pointers
What are some examples of command line user interface (Command prompts)?
Need to type correct address to get on the right path
Input, output, storage
What are some examples of utility programs?
Anti virus software
automatic backups
compression
disk defragmentation - move files closer together
What is the definition of ethics?
How a person conducts their lives based on what they feel is right or wrong
What is the definition of laws?
Rules in society which are enforced by penalties
What is the definition of steakholder?
Anyone who may be affected by the actions or policies of an organisation/ technology
What is the definition of key steakholder?
Those who can influence the actions or policies of an organisation
Testing medicines on animals
Unethical
Using an image found on google in your school work
Unethical
A hospital sells patients’ records to an insurance company
illegal
Taking a photo of your friend and sharing it without permission
illegal
Using a teachers’ password and changing your grades
Unethical
Copying a competitors’ latest product design
illegal
What is the digital divide?
The difference between those who have access to connected technology, and those who do not
Groups most affected by the digital divide
Elderly
Poor
Geographically remote communities
Benefits of AI
Quicker
Creating jobs
Digital assistance
Availability
Medical applications
Risky situations
Disadvantages of AI
Expensive
Malfunctions
Laziness
Loss of skill
What are the three legal concerns
The Laws
Data Protection Act 2018
Computer misuse act 1990
Copyright design and patents act 1988
What is the Data Protection Act 2018
Includes the UK version of GDPR
Protects the rights of data subjects and personal data
What does the computer misuse act make illegal?
Hack
Gain unauthorised access
Delete or modify data without permission
Write or knowingly distribute malware(viruses)
Use a computer to commit further offences
What does the copyright designs and patents act do?
illegal to copy a work without the copyright owners permission
Copyright is automatically granted to the creator of any material
It does not have to be marked with a C copyright symbol
What are the three factors affecting the CPU?
Cores
Clock speed
Cashe size
What are the three laws of computing?
Computer misuse Act
Data Protection Act
Copyright, Design and Patents Act
How many KB are in 1MB?
1000
How many MB are in 1GB?
1000
How many GB are in 1 TB?
1000
How many TB are in 1PB?
1000
What are three application software?
Gaming software
Presentation
Web browsers
What are the CPU components?
Arithmetic logic unit
Control unit
Registers
Accumulator
What does systems software manage
The hardware and software in a computer system
What does utility software ensure?
Computers are running properly
TRUE OR FALSE?
RAM and ROM are examples of secondary storage.
FALSE
TRUE OR FALSE?
cache memory is primary storage
TRUE
What is at the top of the computer hardware diagram?
Communication
What is in the middle of the computer hardware diagram?
Processing / primary storage
What is at the bottom of the computer hardware diagram?
Secondary storage
What is on the right of the computer hardware diagram?
Output
What is on the left of the computer hardware diagram?
Input
What is on the bottom left of the software diagram?
Operating systems and utility programs
What is on the bottom right of the software diagram?
Closed source and open source
What is on the to left of the software diagram?
Systems software
What is on the top right of the software diagram?
Applications software
What does accessibility mean?
Making it possible for people with disabilities to use a computer system
What does the ALU do?
Performs arithmetic calculations and makes logical decisions
What does the CU (control unit) do?
Sends signals to control how data moves around the CPU
What does the cache do? CPU
Provides fast access to frequently used instructions and data
What does the operating system allocate in the managing memory?
memory addresses for processes either for data or instructions
What are the six DPA: Six Principles?
-Fairly and lawfully processed
-Used for specific, explicit and legitimate purposes
-adequate, relevant and not excessive
-accurate and up to date
-must not be kept for longer than is necessary
-stored and processed securly
