Chapter 1

Chapter 1

1. What is a ICT system?

   • An ICT system is a system made up from hardware, software and the people who use them.
   • It normally includes communications technology
   • ICT systems and computers are not the same thing

2. Types of computer

   • Digital computers are the most used type of computer and the types we all use.
   • Personal computers are computers such as; Netbooks, Laptops and Tablets etc.
   • Super computers are the fastest computers that exist in terms of speed calculation
   • Embedded computers are software that is programmed to carry out a number of dedicated functions.

3. Hardware and software

   • Hardware:
     • The physical components of a computer system are called the 'hardware'
     • Hardware is all of the physical components that can be touched (e.g. mouse and keyboard)
   • Software:
     • The instructions that make the system work and which follows are called software
     • Software is used to program the computer

4. ROM and RAM

   • ROM is memory that cannot be accessed or changed
   • RAM stores temporary data

5. Communication Devices

   • Network Interface Card
   • Router
   • Hub
   • CPU (Central Processing Unit)
   • Modem

6. Operating Systems

   • Provides computers with the common services for computer programs
   • Is a essential component of the system software in a computer

7. Utility Software

   • Is a type of software that is used to analyse, configure and mainframe a computer
   • They complete various tasks that may be important in everyday life such as Anti-Virus Software such as AVG

8. Application Software

   • Allows you complete everyday tasks such as writing a letter etc.

9. Generic Software

   • Is 'ready-made software'
   • Used in contrast with custom software which can be used to complete multiple tasks

10. Integrated Software

    • Integrated software is basically software inside the operating system
    • Is 'pre-installed' software

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