Topic A Crammer
Topic A Crammer
Starter: Look at the picture of a car entertainment system below.
List five functions that this system, or others like it, carry out.
A photocopier is a multifunctional device
Give one more example of a multifunctional device.
What functions does it carry out and explain its use?
Multifunctional devices
A multifunctional device is one that performs many different functions
•Many school photocopiers are multifunctional devices as they offer many of the following features:
•Photocopying
•Printing
•Scanning
•Sending faxes
Purpose of Multifunctional devices
Multifunctional devices streaming operations and reduce costs by combining multiple functions traditionally handled by separate devices.
These are beneficial in office settings where there can reduce the amount of devices required, save space and simplify document management.
Data capture devices
Data capture devices are used to collect data electronically to be processed. Examples include:
•GPS receiver
•Credit/debit card reader
•Automatic number plate
recognition (ANPR) camera
•What are three other data
capture devices?
What are three other data
capture devices?
Servers
Servers are powerful computers that provide network services such as network applications, storage and other resources for users on the same and other computers.
•The network could be made up of a series of cables which connect the server to other computers.
•Servers can be backed up from a central location.
•The cloud refers to servers that are geographically separate from the users. These servers are often some sort of storage device.
What is a server, and how does it differ from a client?
Answer
A server is a system that provides resources, services, or data to other systems (clients) over a network. A client requests services, while a server responds to those requests.
What are common types of servers (e.g., web, file, database, application)?
Answer
Common types include web servers (serve web content), file servers (store and share files), database servers (manage databases), application servers (run business logic), mail servers, and DNS servers.
Peripheral devices
Peripheral devices are hardware that is supplementary to the computer. If you can touch it then it is hardware. Some hardware can also contain software
A mouse is a peripheral device
List as many peripheral devices that you can think of
Answers
Keyboard, mouse, printer, microphone, USB, Bluetooth, monitor External hard drives, etc.
Types of peripheral devices
Input devices interacts and send information to the computer. They passes data to the computer but the cannot store data.
Output devices provides information to the user from the computer. They perform a function using data or software stored on a computer.
•Storage devices are peripheral devices that are used for storage on a computer. These can be internal or external storage.
Drag these peripherals in the correct box
USB
SIM Card
Optical Disk
Microphone
Joystick
SSD cards
Printer
Input
Output
Storage
Monitor
Mouse
Keyboard
Projectors
Assistive technologies
Assistive technology (AT) incorporates a wide range of devices and services designed to help maintain or improve an individual’s functioning related to cognition, communication, hearing, mobility, self-care and vision to enabling their health, well-being, inclusion and participation in society.
What is the difference between a HDDs and SSDs
Who benefits the most from assistive technologies?
Most people will need assistive technology at some point in their lives. While some may require assistive technology temporarily, others may require it for a longer period or throughout their lifespan.
Which of the following best describes the primary purpose of assistive technology (AT)?
To provide entertainment through advanced devices
To replace professional healthcare services entirely
To maintain or improve functioning related to various aspects such as cognition and mobility
To monitor vital signs exclusively in hospital settings
User Interface
A computer interface is the boundary between a user and the computer and programs they are using
There are a number of different kinds of interface
Graphical User Interface (GUI)
Command line interface (CLI)
Menu based interface
Adaptive user interface (AUI)
What do you think each of these different kinds of interface mean?
What is a CLI?
What is a GUI
GUI (Graphical User Interface)
Graphical user interfaces use the following methods to allow users to open and interact with programs
•Windows
•Icons
•Menus
•Pointers
•This is often called a WIMP style of interface
How do mobile phones differ to these elements?
Mobile phone GUI
•Touch screens mean that:
•Mice are not required
•Pointers no longer need to be shown
•Icons tend to be selected with just one finger press
•Gestures to zoom in and out
•Smaller screens mean that:
•Programs are closed by a task manager or recent applications menu rather than a close button on a window
•Showing more than one window is rarer and may not be supported by the operating system
•Menus must be larger to tap with a finger
retailers. Rachael employs a team of developers and programmers in addition to administrative and office staff. They are currently designing a new website for a major retail company.
The programmers have to enter and send complex commands to the server which will improve performance and upload new computer code.
They use a command line interface.
What are the advantages of using a command line interface for the developers?
Why would a Graphical User Interface (GUI) be most suitable for the administrative and office staff?