So, what are Digital Technologies?So, what are Digital Technologies? Digital Technologies are electronic tools, systems, devices and resources that generate, store or process data. These includes social media, online games and applications, multimedia, productivity applications, cloud computing, interoperable systems and mobile devices (Victoria State Government, Education and Training (VSGET), 2016). As you can see our lives are immersed in Digital Technologies, from the time that we get up in the morning to the time that we go to bed at night. Let's click on the link and investigate this further. |
What is a Digital System?A Digital System (a computer) represents information using a binary system, where data can assume one of only two possible values: zero or one. What is a binary system, let's check it out, click on the link Binary System.
Teaching Idea 1: Resource - Binary System:
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What is a Network? A Network is a group or system of interconnected people or things. This is discussed further on this page 'How Do Digital Systems connect together to form a network?''
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How can we transmit Data?Data transmission is the process of sending digital or analog data over a communication medium to one or more computing, network, communication or electronic devices. It enables the transfer and communication of devices in a point-to-point, point-to-multipoint and multipoint-to-multipoint environment. Teaching Idea 2: Resource Transmitting Data for programming - MaKey Makey or Scratch.
Teaching Idea 3: Resource - Information It is important for students to gain knowledge with respect to how data may be transmitted between two digital systems in different ways, for example that wires or cables are used in wired networks to transfer data from one digital system to another, and radio waves are used to transmit data in wireless or mobile networks. A wired system utilises wires or cables to transfer data from one digital system to another. A wireless system utilises radio waves to transmit data in wireless or mobile network systems. Teaching Idea 4: Resource Interesting link Wired vs. Wireless makes direct comparisons between the two systems |
What devices can be used to transmit data?Any device can be used to transmit data where you can enter data into its computer via a keyboard. Each keyed element is encoded by the electronics within the keyboard into an equivalent binary coded pattern, using one of the standard coding schemes that are used for the interchange of information. To represent all characters of the keyboard, a unique pattern of 7 or 8 bits in size is used. The use of 7 bits means that 128 different elements can be represented, while 8 bits can represent 256 elements. A similar procedure is followed at the receiver that decodes every received binary pattern into the corresponding character.
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