COMPUTER ARCHITECTURE
SECONDARY STORAGE DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A databased record has 4 fields. Full name (text up to 20 characters), Class (text up to 2 characters), DateStartedSchool, FreeSchoolMeals. There are are 30 records. Text = 1 byte per character, Ingterger = 4 bytes, Real = 4 bytes, Date = 8 bytes, Boolean = 1 byte. How much storage in bytes would this take up? (Including overheads)
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1023
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102
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10230
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102300
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Explanation:
Detailed explanation-1: -A primary key in a file is the field (or fields) whose value identifies a record among others in a data file.
Detailed explanation-2: -The field length indicates the maximum number of characters that are required to represent data in character format. The field length is already known if the data is stored in the native format; for example, the int data type takes 4 bytes.
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