Please enable JavaScript.
Coggle requires JavaScript to display documents.
Peripheral Devices & Media - Coggle Diagram
Peripheral Devices & Media
Input and Output Devices
Keyboards
- Made up of a panel of keys, this device is used to input alphanumeric characters, symbols and simple commands into a computer.
Mouse
- A pointing device that allows a user to control a cursor on the screen to select objects displayed.
Microphone
- An audio input device that allows a user to enter sounds into the computer system.
Game Controller
- Used to control video games, this can come in a gamepad form or in the form of a joystick. These devices can often contain a force-feedback feature so that the controller rumbles during events in the game.
Monitor
- A device that outputs a visual display of the user interface of any software that is currently being used on the computer.
Projector
- This is an alternative to a monitor for outputting a visual display from the computer. The difference is that it projects the visual display onto a wall or screen.
Printer
- A device that is used to produce physical copies of the documents & images produced using a computer system.
Plotter
- A type of printer designed to print vector graphic images.
Data Processing
Manual Data Processing
- This involves individuals entering data into the computer themselves.
Data Complexity
- Manual entry can handle any data, even if complex, like entering a report.
Training Needs
- Staff will likely be familiar with manual data entry methods and so do not require training.
Automatic Data Processing
- This involves using specialist devices that interpret data and convert it from its physical source into digital data stored on the computer.
Accuracy
- People are prone to making mistakes, such as typos, which cause incorrect results after the data is processed.
Time & Cost
- It takes time for individuals to enter data manually into a computer system and perform processing.
Storage Device
H
ard Disc Drives (HDD)
- HDDs are a form of magnetic storage. They consist of several discs made of magnetic material called platters. the hard disc drive magnetises and demagnetises billions of tiny individual areas on the platter.
Solid-state drives (SSDs)
- SSDs are a form of flash memory storage. They store data using semiconductor chips.
USB Flash Drives
- USB flash drive devices involve a USB connector and flash memory in order to store data with portability in mind. They are commonly used for transferring data between different computers, as well as to back up our files. They use flash storage
Secure Digital Card (SD Card)
- a very small memory card that is used commonly in digital cameras, as well as in mobile devices like smartphones. These also use flash storage
Optical Discs - CDs, DVDs and Blu-Ray discs
are all examples of optical discs. They are a form of optical storage that uses a laser to mark the disks in a pattern. A light is then bounced off the disk and is read back differently depending on whether the light bounces off a marked or non-marked area.