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Quiz Study Questions for the topic: Data
Explain clearly the difference between a 'Kilo' and 1,000, and, between a 'Mega' and 1,000,000.
Arrange these terms for capacity in computer systems and decimal values in ascending order: peta, mega, giga, kilo, tera, exa, 100, 1,000, 1,000,000, 1,000,000,000
A file with an even megabyte in a directory has roughly how many megabits when it is put over a DMA channel or network?
What are the max directly addressable RAM sizes for 16, 32 & 64-bit CPUs?
Discuss these data representations, tell where they used, their limitations, and how many characters are defined in each: ASCII, EBCDIC, UniCode.
UTF-8 is the most widely used character set for Linux-based web servers. What problem does it solve?
Describe the applications where these character definitions prevail: ASCII, UTF-8, UniCode, ISO-8859, and HTML Special Characters?
Name three common 'control characters' in ASCII or EBCDIC & and tell what they control or signify.
What is a 'collating sequence'? What does it affect? Name a couple two systems where collating sequence differs.
Converting values among number systems:
Given this outline, describe how the data is represented and give an appropriate use for each entry:
How is an 'epoch' used in modern date and date/time data types?
What caused the very real Y2K crisis?
What would be the appropriate data type for any/all of these?
A person's birthdate
An address field on a form
The rate of accelleration of an object
A counter in a loop
The location of a pixel in a 3D animation
The amount of tax on an invoice
The result of a logical comparison, true/false
The pressure of a gas in a container
The count of beans in a pod
The cost per unit of some small item
A long chapter in a novel