2.0 COMPUTER SYSTEMS

2.1  System Concept

2.1.1   2.1.1 overview of computer system

2.1.1.1 Define computer system

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

2.1.1.3 Describe the information processing cycle which  includes  input,output,process, and

storage.

2.1.2   Data Representation

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

2.1.3   Introduction to Binary Coding

2.1.3.1 Explain the function of ASCII code.

2.1.4    Data Measurement

2.1.4.1 State the units of data measurement:

    •  Bit
    • Byte
    •  Kilobyte (KB)
    • Megabyte (MB)
    • Gigabyte (GB)
    • Terabyte (TB)

2.1.5  Clock Speed Measurement

2.1.5.1 State the units   of clock speed measurement:

•   Megahertz (MHz)

•  Gigahertz (GHz)

2.2  Hardware

2.2.1  Input Devices

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

2.2.2  Output Devices

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

2.2.3    Motherboard

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.

CPU

2.2.4    Storage

2.2.4.1      Explain  types and functions of :

  •  primary storage (RAM, ROM)
  •  secondary storage (magnetic medium  optical medium, flash memory)

2.3  Software

2.3.1     Operating System (OS)

2.3.1.1 State the various types of OS used on different platforms.

2.3.1.2 State the functions of OS.

2.3.1.3 State the different interfaces of OS.

2.3.2     Application Software

2.3.2.1 State the types of application software (wordprocessing, spreadsheet, presentation,

graphic).

2.3.2.2 Describe the uses of application software (wordprocessing, spreadsheet, presentation,

graphic).

2.3.3     Utility Program

2.3.3.1   Differentiate between   the types and usage of utility programmes (file management,

diagnostic and file compression).

2.3.4     Proprietary and Open Source Software

2.3.4.1     Differentiate between  proprietary and open source software.

2.4  Installation

 

2.4.1    Personal Computer (PC) Assembling

2.4.1.1  Assemble the components of a PC.

2.4.1.2  Display cooperation in assembling the components of a PC.

2.4.2    Hard Disk Partitioning and Formatting

2.4.2.1   Format and partition the hard disk.

2.4.3    Software Installation

2.4.3.1 Install operating system, application software and utility programs.

2.5  Current and Future Developments

2.5.1    Software Available Latest Open Source

2.5.1.1  Explain the latest open source OS and application software available in the market.

2.5.2     Latest Development In ICT

2.5.2.1   Explain the latest ICT hardware and software

2.5.2.2  Explain pervasive computing.