Activities
D.3 Program development variables Answers
1. Give examples of the following variable types 2. What datatype would you use to store your name? String 3. What datatype would you use to store the amount of stock of an item in a warehouse? int 4....
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Topic 7.1 - Centralized control systems -Answers
1. There are many microprocessor controlled devices in the modern home. Discuss the effects of these on people’s lifestyles. Pros: – microprocessor controlled devices do much of the housework – do not...
Activities
Topic 3.1 - Wireless networking - Answers
1. Identify the following devices. 1. A school is planning on introducing a school wide public WiFi network for use by staff, students and parents. Evaluate the pros and cons of this decision. WiFi...
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Topic 3.1 - Data transmission - Answers
1. Define the term protocol and outline why protocols are necessary for effective network communication. A protocol defines the format and the order of messages exchanged between two or more communicating...
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Topic 3.1 Network fundamentals - Answers
1. Match the type of network to the correct definition. 2. Network standards can be considered as either formal or de facto. Examples of formal network standards are HTTP, TCP/IP, Ethernet IEEE 802.3....
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Topic 2 - Simple logic gates - Answers
The following gates are used for these exercises. AND OR NOT NAND NOR XOR 1. Draw a truth table for the following Boolean operators: a) AND b) OR c) NOT d) NAND e) NOR f) XOR 2. Draw a truths...
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Topic 2 - Binary representation - Answers
1. Convert the following from binary to decimal. a)11100001 225 b) 00100111 39 c) 00111100 60 d) 00111010 58 e) 01101101 109 f) 11100111 231 g) 11000100 196 h) 10111000 184 i) 01100110 ...
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Topic 2 - Operating systems and application systems - Answers
1. A salesperson is working on her laptop. the laptop is small and light but only has 2GB of RAM. She works on many programs at the same time in order to get work done. For example While she is working...
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Topic 4.3 - Introduction to programming - Answers
1. The table below shows 5 of the main operations of a computer. Complete the table by adding two pieces of hardware for each. 2. Explain the role of the ALU. The ALU carries out the arithmetic operations...
Activities
Topic 4.3 - Introduction to programming - Exercises
1. The table below shows 5 of the main operations of a computer. Complete the table by adding two pieces of hardware for each. 2. Explain the role of the ALU. 3. State the rules for the AND and OR logical...