1- Define hardware as consisting of physical components of a computer system 2- Identify internal hardware devices (e.g. motherboards, random access memory (RAM), read-only memory (ROM), video cards, sound cards and internal hard disk drives) 3- Identify external hardware devices and peripherals (such as monitors, keyboards, mice, printers as input and output device 4- Define software as programs for controlling the operation of a computer or processing of electronic data 5- Identify the two types of software applications software and systems software 6- Define applications software (e.g. word processing, spread sheet, database management systems, control software, measuring software , photo-editing software, video-editing software, graphics manipulation software) 7- Define system software (e.g. compilers, linkers, device A big thanks for Mr Ahmed for his tremendous effort on the IGCSE ICT

Students should be able to: Roles of the different computers within the network and subnetwork models Benefits and drawbacks of each model Justify the use of a model for a given situation Understand how packets are transmitted between two hosts for a given topology Justify the use of a topology for a given situation Including the use of public and private clouds. Benefits and drawbacks of cloud computing Describe the characteristics of copper cable, fibreoptic cable, radio waves (including WiFi), microwaves, satellites Including switch, server, Network Interface Card (NIC), Wireless Network Interface Card (WNIC), Wireless Access Points (WAP), cables, bridge, repeater Including Carrier Sense Multiple Access / Collision Detection (CSMA / CD) Methods of bit streaming, i.e. real-time and on-demand Importance of bit rates / broadband speed on bit streaming Including modems, PSTN (Public Switched Telephone Network), dedicated lines, cell phone network • format of an IP address including IPv4 and IPv6 • use of subnetting in a network • how an IP address is associated with a device on a network • difference between a public IP address and a private IP address and the implications for security • difference between a static IP address and a dynamic IP address

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•Understand and use pseudocode for assignment, using ← •understand and use pseudocode, using the following conditional statements: IF … THEN … ELSE … ENDIF CASE … OF … OTHERWISE … ENDCASE •U nderstand and use pseudocode, using the following loop structures: FOR … TO … NEXT REPEAT … UNTIL WHILE DO … ENDWHILE •U nderstand and use pseudocode, using the following commands and statements: INPUT and OUTPUT (e.g. READ and PRINT) totalling (e.g. Sum ← Sum + counting (e.g. Count ← Count + •U nderstand and use standard flowchart symbols to represent the above statements, Key Objectives in this unite 2- Pseudocode and flowcharts are to revise: Pseudocode: Assignment Loop structures Input and output Standard actions Flowcharts: Symbols

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