Personal Computers and Peripherals Quiz

The central processing unit responsible for executing instructions and performing calculations in a computer.

Temporary storage that holds data currently being used by the computer, allowing for quick access and retrieval.

A permanent storage device that stores data and programs even when the computer is turned off.

Ports on a computer that allow for connecting external devices, enabling expansion and customization.

Devices designed for mobile computing, typically smaller and more portable than personal computers, often lacking keyboards.

Powerful computers that provide resources to multiple users or devices over a network.

A device that converts sound waves into digital signals, enabling audio input for communication and recording.

A digital drawing tool with a stylus, allowing users to create and edit graphics on a computer screen.

Antivirus software identifies and eliminates suspicious software before it can harm your computer by thoroughly examining your system.

Firewalls act as guardians for your network, preventing unauthorized access from hackers or malware by controlling incoming and outgoing traffic.

Productivity software empowers users to efficiently complete various tasks like word processing, spreadsheets, databases, presentations, and graphic design, making work easier.

When choosing an IT system, factors like cost, efficiency, implementation time, testing, data migration, delivery schedules, and system performance should be considered.

Efficiency impacts the choice of digital technology by measuring how effectively tasks can be completed. A more efficient system reduces the need for staff.

Migration in IT refers to shifting existing data, such as software and files, onto a new system.

SET, or Secure Electronic Transaction, is a secure payment system that initially supported MasterCard and VISA, allowing for secure card transactions.

Antivirus software may momentarily slow down your system while it scans for threats.

A security protocol that enhances online payment security by verifying the cardholder's identity and ensuring that only authorised transactions proceed. It utilizes XML Protocol and SSL encryption to safeguard sensitive data, implemented for VISA, Mastercard, and American Express.

802.11b operates at 2.4GHz with a maximum speed of 11 Mbps. 802.11g also works at 2.4GHz but offers faster speeds of up to 54 Mbps. 802.11ac is more advanced, supporting dual-band operation at both 2.4GHz and 5GHz, with speeds reaching 450 Mbps at 2.4GHz and 1300 Mbps at 5GHz.

Social networking sites serve as effective platforms for event organisation. They allow users to connect around shared interests, enabling seamless communication and coordination for activities.

Online communities can impact personal privacy by exposing information about users to a wide audience. When users create profiles, they share personal details. If these settings aren't carefully managed, the information can become publically accessible, leading to risks like identity fraud and potential bullying.

Chatrooms facilitate real-time communication through short text messages in a shared space. Instant messaging, while similar, is typically used for one-on-one communication.

Encryption converts data into an unreadable code to prevent unauthorised access. This ensures that even if someone gains access to your device, they cannot understand the confidential information.