2.0 COMPUTER SYSTEMS





2.1 SYSTEM CONCEPTS




  2.1.1.1 Define computer systems.

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

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



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.
2.2.4 Storage

        2.2.4.1 Explain types and functions of :
                    • primary storage (RAM, ROM)
                    • secondary storage (magneti