LPM CS


2.1.1.1
Define computer systems.


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2.1.1.2
State the meaning of input, process, output and storage.

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2.1.1.3
Describe the information processing cycle: input, process, output and storage.


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2.1.2.1
State the relationship of data representation: bit, byte and character.


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L31 


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2.1.3.1
Explain the function of ASCII code.

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2.1.4.1
State the units of data measurement:  Bit, Byte, Kilobyte (KB), Megabyte (MB), Gigabyte (GB) and  Terabyte (TB)


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2.1.5.1
State the units of clock speed measurement:  Megahertz (MHz), Gigahertz(GHz)


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2.2.1.1
Identify the input devices used for text, graphic, audio and video.


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2.2.2.1
Identify the output devices used for text, graphic, audio and video


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2.2.3.1
Identify the location of the central processing unit (CPU), expansion slots, expansion cards, RAM slots, ports and connectors on the motherboard.


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2.2.4.1

Explain types and functions of :  primary storage and secondary storage
State the differences between primary storage (RAM, ROM) and secondary storage (hard disk, thumb drive, CD ROM, floppy disk)


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L42


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2.3.1.1
State the various types of Operating System (OS) used on different platforms.


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2.3.1.2
State the functions of OS – e.g Starting a computer, Provides a user interface.


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2.3.1.3
State the different interfaces of Operating System :
Command Line Interface e.g: DOS  and Graphical User Interface e.g : Windows XP


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2.3.2.1

State the types of application software (word processing, spreadsheet, presentation, graphic).


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2.3.2.2
Describe the uses of application


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L50


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2.3.3.1
Differentiate between the types and usage of utility program (files management, diagnostic and file compression).


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L55


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2.3.4.1
Differentiate between proprietary and open source software.


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L57


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