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GCE JUN 2006 : AS 2 Components of Information and Communication Technology

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Centre Number 71 Candidate Number ADVANCED SUBSIDIARY (AS) General Certificate of Education 2006 Information and Communication Technology Assessment Unit AS 2 Module 2: Components of Information and Communication Technology ASW21 assessing [ASW21] TUESDAY 20 JUNE, MORNING TIME 1 hour 30 minutes. INSTRUCTIONS TO CANDIDATES Write your Centre Number and Candidate Number in the spaces provided at the top of this page. Write your answers in the spaces provided in this question paper. Answer all eight questions. For Examiner s use only Question Number INFORMATION FOR CANDIDATES The total mark for this paper is 90, including a maximum of 4 marks for quality of written communication. Figures in brackets printed down the right-hand side of pages indicate the marks awarded to each question or part question. 1 2 3 4 5 6 7 8 QWC Total Marks ASW2S6 2661 Marks Answer all eight questions. Examiner Only Marks 1 (a) Describe how data is captured using OCR. [3] (b) Describe how data is written to an optical disc. [3] (c) Explain how speech output is produced by a computer. [4] ASW2S6 2661 2 Remark 2 The CPU contains an arithmetic and logic unit (ALU) and memory. Examiner Only Marks Remark (a) Describe two reasons why the ALU is needed. 1. 2. [4] (b) Describe two ways in which the CPU s memory is used. 1. 2. [4] (c) Identify and describe the purpose of another main component of the CPU. Name [1] Description [3] ASW2S6 2661 3 [Turn over 3 A computer uses a multi-tasking operating system. Examiner Only Marks (a) Describe two reasons why a computer needs an operating system. 1. 2. [4] (b) Describe how multi-tasking can be achieved on a computer. [6] ASW2S6 2661 4 Remark 4 A school principal uses presentation software for open day. Examiner Only Marks Remark The principal wishes to produce a graph using figures from a spreadsheet. (a) Describe how the principal could create the graph using a wizard. [3] (b) Describe how the principal could create the graph using a macro. [3] ASW2S6 2661 5 [Turn over The principal changes the data in the spreadsheet just before open day. Examiner Only Marks (c) Explain what will happen if the graph has been embedded into the presentation. [3] (d) Describe another way of inserting the graph into the presentation and comment on its effectiveness in this case. [3] ASW2S6 2661 6 Remark 5 When a customer orders by telephone, the salesperson asks for the postcode and house number. The salesperson obtains the customer s address from a database of postcodes. Examiner Only Marks Remark (a) Describe two ways in which data validation could be used in this case. 1. [2] 2. [2] (b) Describe how data verification could be used in this case. [2] A customer can also order goods by post using a pre-printed form. Details from the form are keyed into the computer system. (c) Describe two ways in which a transcription error could arise in this case. 1. [2] 2. [2] ASW2S6 2661 7 [Turn over 6 Some packages on a college s computer system use a graphical user interface. Other packages use a command-line interface. Examiner Only Marks (a) Describe the main features of each of the following: (i) A graphical user interface. [3] (ii) A command-line interface. [3] ASW2S6 2661 8 Remark (b) Describe two reasons why students might find these packages difficult to use. Examiner Only Marks Remark 1. 2. [4] 7 A student can enter for a number of examinations. Details about students and their examination results are stored in a flat file. (a) With the aid of a suitable example, explain why the file may contain redundant data. [2] (b) With the aid of a suitable example, explain why data in the file may be inconsistent. [2] ASW2S6 2661 9 [Turn over The data is normalised and stored in a database. Examiner Only Marks (c) Describe how the data will be organised in this database. [6] ASW2S6 2661 10 Remark 8 The ring, the star and the bus are common network topologies. Examiner Only Marks Remark (a) Explain how data is transmitted over a ring network. [4] (b) Explain how data is transmitted over a star network. [4] (c) Describe what is meant by a star bus composite network. [4] Quality of written communication ASW2S6 2661 11 Permission to reproduce all copyright material has been applied for. In some cases, efforts to contact copyright holders may have been unsuccessful and CCEA will be happy to rectify any omissions of acknowledgement in future if notified. S - 05/06 - 1500 - 302507(213)

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Additional Info : Gce ICT June 2006 Assessment Unit AS 2, Module 2: Components of Information and Communication Technology
Tags : General Certificate of Education, A Level and AS Level, uk, council for the curriculum examinations and assessment, gce exam papers, gce a level and as level exam papers , gce past questions and answer, gce past question papers, ccea gce past papers, gce ccea past papers

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