Computer systems

Computer systems

1. input

   • keyboard : allows user to enter data by pressing keys
   • mouse : allows user to navigate and select data/ software by moving an arrow around a screen
   • USB : allows user to transfer and add data and software to the computer device
   • touch screen : the touch screen senses movement on the screen and transfers it into readable data that can be acted upon
   • microphone : the microphone system records and picks up signals in your voice and amplifies them through a speaker

2. output

   • printer : this device accepts text and images and transfers it to paper.
   • headphones : users can transfer songs and other sound from their computer device to a private listening device.
   • screen : used to give us access to files and data through a 'command line interface' or a 'graphic line interface'
   • television : an electronic device that recieves audio and visual signals and plays it to the viewer
   • projector : take images and videos and generates it onto a surface.

3. storage

   • software
     • proctection : allows user to protect device from malware and other malicious actions
     • games : user can access gaming data and files by downloading files and software of a program or the internet or cloud.
   • The cloud : a remote database providing storage that can be accessed anywhere.
   • Optical
     • CD : a convenient external storage device that has bumps in the plastic that are read by a special scanner that are scanned.
     • DVD : a storage device that can store large amounts of data. you must have a disk drive to use this devise (however if you do not you can use an external disk drive)
     • hard drive : allows user to store data and files on a disk that is connected to the motherboard and are set in the drive bay
   • Solid State
     • ssd : this is a drive that uses 'non volatile memory' as a way of storing and accessing data and files.
     • USB : allows user transfer data using reliable non moving parts
     • memory card
     • external SSD
   • magnetic
     • floppy disk : allows user to store use data using a needle that reads rings on the disk
     • magnetic tape

Bilder und Dateien der Mindmap