mutant ict flashcards

extranet

restiricted/private network which is controlled by the company, it allows access for authorised customers

what is a possible health problem with using a mouse for too long?

repetitive strain injury

what are two characteristics of RAM?

temporary and volatile

advantages of using cloud storage rather than SSD

it has a greater storage capacity, data is sent directly, storage capacity can be increased, automatic backup of data, user is able to share the data with others

disadvantages of using cloud storage over SSD

cloud storage needs internet connection to access data, security issues with cloud as multiple copies of the data is stored, cloud storage has ongoing cost, user loses control over storage of the data

similarities of wifi and bluetooth

both use wireless communicaiton, both use radio frequencies for communication, both allow several devices to be connected, both use security when sending data

advantages of using internet banking

reduces number of journeys to and from the bank, saves moeny as fewer journeys are made, reduces time wasted, 24/7 banking, no physical robberies

disadvantages of internet banking

security issues, user needs reliable internet connection, more risk of phishing/fraud/pharming, easier to make errors

strategies to stay safe on social media

don’t give people personal information, dont open/click suspicious links/adverts, dont become friends with people you dont know, set security so only friends can conntact you

difference between backing storage and internal memory

backing storage is non volatile only whilst for internal memory data can either be volatile or non volatile, internal memory is directly accessed by the CPU whilst backing storage isn’t, backing storage is permanent storage while internal memory can be permanent or temporary storage, storage devices have slower access rates, backing larger storage capacity

disadvantages of GUI

takes up a large amount of hard disk space, need a significant amount of RAM to run, they use a lot of processing power, restricted to pre determined options

disadvantages of laptop compared to a desktop

more difficult to repair, harder to replace components as it is not standardised, more expensive to repair, tend to have smaller screens, internet connection isnt as stable

examples of direct data entry devices

magnetic stripe reader, radio frequency identification reader(RFID), optical mark reader, optical character reader, bar code reader, QR scanner, biometric scanner

what are two other functions of a router?

connecting networks and devuces to the internet, storing computer addresses, forward packets based upon a routing table