General Knowledge Flashcards
What are the 2 functions of memory management?
Allocating sufficient memory address for other apps
Makes sure data resident in memory is not overridden
What 2 things would breach the computer misuse act?
Hacking
Installing of malware
What are 3 advantages of using open source?
Free
Adapted to needs
Evolves to needs of community based on responses
What are 4 disadvantages of using open source?
UI is poorer
Less support
Hidden costs
Open to abuse such as virus insertion
State 2 advantages of storing OS in ROM?
Contents cannot be changed or deleted
Immediate Acess
What are 4 hardware issues with an emulator on a newer piece of software?
Instructions processed at same speed
Compensate for colour depth changes
Compensate for resolution changes
Allow modern input devices
Explain why Input accuracy on touch screen affects the design of the UI.
Objects being too small
Accuracy of the touch screen calibration
Name 3 ways you could improve screen User Interfaces?
Names for menus
Larger Icons
Contrasting Colours
State 2 ways in which a Solid State Drive would be better for mobile devices
Less power consumption
Smaller physical size
What are some current trends in storage systems?
Reduction in size
More data stored in smaller space
Cost per unit of storage is decreasing
Less power requirements
What are some advantages of RAD over the waterfall method of development?
Quicker response to changing customer requirements
Continual contact with customer
Testing is gradual - finding errors quicker
Enjoyable projects
Developed quicker = +economy
Name 3 advantages of using server side scripting
Load times are faster
Interactivity is improved
No additional plugins needed
Name 3 programming languages used for server side scripting
ASP, JavaScript, PHP
What are 2 methods of reducing graphics sizes on a webpage?
Compress all file types
Reduce Resolution
Name 7 services of using the cloud
Storage Encryption Payment Peer to peer networks Public file hosting Net Drive Automatic backup of data
State 2 ways in which increased number of cores improve load times.
Specific instructions can be allocated to certain processors
Means simultaneous execution
What 4 ways can you reduce the file size of a video?
RLE
JPEG
LZW
MPEG
State 5 advantages of using a hybrid cloud
Store sensitive data - private Outsource services to public cloud Can easily expand public without hardware costs No new hardware purchases - public Backup strategies are cheaper - Public
What are 2 environmental advantages of upgrading computers rather than buying new ones?
Reduces parts in landfill
Reduces toxic waste
What are 2 environmental advantages of buying new computer than upgrading?
Newer computer are built to high environmental standards
Use less power and less carbon footprint
Name and explain 3 trends in processor development of smartphones
Reduced Power - Longer battery life
Increased internal registers - increased processing speeds
Wider bus widths - increased processing speeds
Describe 3 technologies used to connect a mobile to the network
Bluetooth - Short distance radio wave based system
Wi-Fi - Local Area radio wave based system
3G or 4G - A set of standards that make use of the mobile phone telephone network
