1a Answer the following questions on hardware and software.   1a (i) Name the two types of primary memory. (2) 1a (ii) Explain the difference between primary and secondary memory as concerning the processing of programs. (2) 1b (i) Name any three functions of an operating system. (3) 1b (ii) What is application software? (2)    

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4. A shop has a computerised stock control system. The system records the number of items the shop has in stock. When a customer buys an item, the number in stock is reduced. When a delivery of new stock arrives, the number of each item in stock is increased.   4a Explain how radio-frequency identification (RFID) tags can be used in the stock control system. (6) 4b The stock control system is set up as a client-server model.   4b (i) Describe the function of a client. (1) 4b (ii) Describe the function of a server. (1) 4b (iii) How does a peer-peer network model differ from a client-server model. (3) 4c Workers in the stock control room have handheld devices that they can use to scan items and access data on the server. Analyse and recommend an appropriate network communications protocol for connecting the portable handheld devices to the server. (5) 4c The network uses a range of network hardware components.   4c (i) Describe the function of a switch in a network. (2) 4c (ii) Describe the function of a repeater in a network. (2) 4c (iii) Name and describe a network hardware component that could be included in the network, other than a switch, repeater or server. (2) 4d The shop needs to protect the security of the data on its network and server. Data transferred on the network is always encrypted. Explain how encryption can help protect the security of the network.     (2)    

In ________, learning occurs when two types of events are paired closely in time.

The process of memory consolidation at the neuronal level depends on 

Based on what you have learned in this class, who is most likely to develop coronary heart disease?

Which of the following statements about complementary and alternative medicinal treatments is FALSE?

According to Creswell, what two features appear in most definitions of mindfulness meditation?

According to Kathleen Gallagher’s TED Talk entitled “Healthy Child: Assembly Required,” what change should our society make if we want to improve the life outcomes of poor and low-income children?

Who is in the resistance phase of Selye’s general adaptation syndrome?