Edexcel ICT Insider

Camille uses digital devices for work. (a) A distance sensor is used as an input for an embedded system in a car. (i) Describe how a distance sensor is used by an embedded system in a car. (2) When a distance sensor in a car detects that a car/object/pedestrian is close, it triggers an actuator response , which can involve applying the brakes, changing the car’s direction, or vibrating the steering wheel. Additionally, it may produce an audio/visual output , such as sounding an alarm or displaying a warning, to alert the driver to the potential danger. (ii) Which one of these is another example of an input for a device? (1) A LED B Monitor C Scanner D Speaker C Scanner   (b) State the number of instructions that can be executed every second by a 3.2MHz processor. (1) 3.2 million of instructions that can be executed every second by a 3.2 MHz processor.   (c) GPS can be used to monitor people’s movements. State one other way of monitoring people’s...

Camille has two children. Camille uses ICT to organise her family life and her children use ICT for school. Camille creates a home network. (a) (i) State what is meant by ‘ tethering ’. (1) Tethering is the process of connecting a host device, such as a smartphone or a tablet device, that uses a mobile broadband connection with one or more other devices. (ii) Which one of these is a reason for using a network? (1) A To licence software as open source B To prevent latency C To provide flexible access D To reduce hardware costs C To provide flexible access   (b) Camille connects to a LAN . (i) State two features of a LAN that are different from a WAN . (2) 1 LANs have a limited coverage area compared to WANs. They typically cover a relatively short distance, usually within a few kilometers at most. 2 LANs are self-contained networks within a single site, so they do not require a gateway to connect to external networks like the internet. All devices within t...

Nihal downloads communication software to his laptop. (a) Give two features of a computer that are required to download software. (2) 1 To download software, Nihal's laptop must be connected to the internet . This can be done through a wired or wireless network connection . 2 Depending on the size of the software being downloaded, Nihal's laptop must have enough storage space available to store the downloaded files.   (b) Explain two ways the Internet has improved communication for organisations. (4) 1 The internet allows for real-time communication between individuals and groups, which means that messages, data, and information can be exchanged almost instantly. This is because data is transmitted over the internet at very high speeds, allowing for immediate and responsive communication. 2 The internet has made it possible for people to connect and communicate remotely, regardless of their location. This is because the internet can be accessed from anywhere using ...

Nihal uses the Internet for work. (a) Nihal uses the Internet to update the skills he needs for his work. Describe one other way using the Internet has had a positive impact on employment. (2) The Internet has led to the creation of many new types of jobs that did not exist before. For example, social media managers , online content creators , digital marketers , and e-commerce specialists are some of the job roles that have emerged with the rise of the Internet. As consumer and employer needs continue to evolve, new types of jobs will continue to emerge, creating new opportunities for job seekers. (b) Nihal's employer uses hosted storage . (i) Explain one drawback to Nihal's employer of doing this. (2) One drawback to Nihal's employer of using hosted storage is that they may have less control over their data. Hosted storage services are typically provided by third-party vendors, who may store the data in remote data centres or the cloud . (ii) Which one of these is the b...

Nihal uses an online banking service . (a) (i) List two features of an online banking service. (2) 1 Online banking services allow users to manage their bank accounts from anywhere, at any time. 2 Online banking services employ a range of security measures such as multi-factor authentication , encryption , and fraud detection to protect users' financial information and prevent unauthorized access. (ii) Describe one benefit to Nihal of online targeted marketing. (2) Nihal is more likely to see ads that are relevant and interesting to him. Online targeted marketing uses data and analytics to identify Nihal's interests, demographics , and online behaviour , and to tailor ads and promotions to his specific needs and preferences. (b) Which one of these enables transaction tracking? (1) A Authentication B Backups C Cookies D Encryption C Cookies (c) Which one of these describes unsafe practice when using online systems? (1) A Anonymising posts B Copyrighting video C Geotagging photo...