You should be able to…
  • Define a computer system
  • Describe the importance of computer systems in the modern world
  • Explain the need for reliability in computer systems
  • Explain the need for adherence to suitable professional standards in the development, use and maintenance of computer systems
  • Explain the importance of ethical, environmental and legal considerations when creating computer systems

inputprocessstorageoutput

TOPIC OVERVIEW (Test your knowledge)

Key Terms

Dedicated System: a computer system which is designed for one particular purpose e.g. a system controlling a washing machine

Embedded System: a computer system that forms part of an electronic device

Kernel: the lowest level of an operating system that controls the hardware

Computer Misuse Act (1990): the UK law that makes it illegal to hack into a person’s computer and to disrupt deliberately someone else’s computer

Computer System: all the parts that make a computer work, including the hardware, software and data
Data Protection Act (1998): The UK law that tells organisations how they must protect data of real people
Ethical Issues: Issues concerned with whether something is morally right or wrong itself
 
Input Device: A device that allows data to be entered into a computer by transforming it into an electronic form
 
Output Device: A device that takes data which has been processed by the computer and translates it a human readable form
 
Storage Device: A device that stores data in a binary form for use later
 
Environmental Issues: Issues concerned with whether something is good or bad for the environment