Digital logic NISECSpecimenPaperlNo8a A drinks machine measures the size and the weight of each coin as it is entered. It only accepts any coin which has the correct size and the correct weight. Complete the table below using 1 for accept or 0 for reject. Size not correct Size correct Weight not correct Weight correct […]
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Computer
Digital logic
Digital logic NISECSpecimenPaperlNo8a A drinks machine measures the size and the weight of each coin as it is entered. It only accepts any coin which has the correct size and the correct weight. Complete the table below using 1 for accept or 0 for reject. Size not correct Size correct Weight not correct Weight correct […]
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Representation of date
Representation of date A remote terminal is connected to a central mainframe computer using the telephone lines. (a) What device is needed at each end of the telephone line? (b) What job does this device do? (c) Here is part of a message that is being sent from the terminal to the central mainframe. […]
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Representation of date
Representation of date A remote terminal is connected to a central mainframe computer using the telephone lines. (a) What device is needed at each end of the telephone line? (b) What job does this device do? (c) Here is part of a message that is being sent from the terminal to the central mainframe. […]
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Representation of date
Representation of date A remote terminal is connected to a central mainframe computer using the telephone lines. (a) What device is needed at each end of the telephone line? (b) What job does this device do? (c) Here is part of a message that is being sent from the terminal to the central mainframe. […]
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Information processing
Information processing 1 The diagram shows a general data processing cycle. What should be written in the two empty boxes? The date 24th May 1988 is stored as 240588 on a computer data file. (a) Give two reasons why a date should be coded rather than stored in full. (b) When the date […]
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Information processing
Information processing 1 The diagram shows a general data processing cycle. What should be written in the two empty boxes? The date 24th May 1988 is stored as 240588 on a computer data file. (a) Give two reasons why a date should be coded rather than stored in full. (b) When the date […]
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Information processing
Information processing 1 The diagram shows a general data processing cycle. What should be written in the two empty boxes? The date 24th May 1988 is stored as 240588 on a computer data file. (a) Give two reasons why a date should be coded rather than stored in full. (b) When the date […]
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EXAMINATION QUESTIONS
EXAMINATION QUESTIONS This section contains a selection of examination questions. Most are taken from actual GCSEI SCE examination papers, some from GCSE/SCE specimen papers. The source of each question is given in italics next to the question number. Answers are found in the next chapter. The questions are in the order of the core units. […]
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EXAMINATION QUESTIONS
EXAMINATION QUESTIONS This section contains a selection of examination questions. Most are taken from actual GCSEI SCE examination papers, some from GCSE/SCE specimen papers. The source of each question is given in italics next to the question number. Answers are found in the next chapter. The questions are in the order of the core units. […]
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