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IGCSE ICT Chapter 1.
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IGCSE ICT Chapter 1.
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IGCSE ICT Chapter 1hardware - correct answer-physical components that make up a computer system i.e.
keyboard, mouse, monitor, processor, circuit board and so on
software - correct answer-programs that control the computer system
systems software - correct answer-programs that allow the hardware to run properly e.g.
operating systems
applications software - correct answer-programs that allow the users to do specific task e.g.
spreadsheet
input devices - correct answer-devices that put information inside the computer systems i.e.
keyboard, mouse
output devices - correct answer-devices that output information outside the computer
systems i.e. monitor, printer
secondary storage devices - correct answer-way of storing information from the computer
system i.e, DVD, hard drive
operating systems - correct answer-enable users to communicate with computer systems
general tasks of operating systems - correct answer-controlling the operation of input, output
and backing storage devices
supervising the load, running and storage of applications programs
dealing with error that occur in applications program
maintaining security of the whole computer system
maintaining a computer log
allowing communications between user and the computer system (user interface)
CLI (Command Line Interface) - correct answer-requires user to type in instructions in order
to choose options from menus, open software etc.
GUI (Graphic User Interface) - correct answer-allows the user to interact with a computer (or
any other device) using pictures or symbols (icons)
PC/desktop computers - correct answer-general purpose computers made up of separate
monitor, keyboard, mouse, and processor unit
Advantages of PC - correct answer-spare parts and connections are standardized- low costs
desktops have better specifications
large casing allows good dissipation of heat build-up
Disadvantages of PC - correct answer-not portable
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