CHAPTER 9 PART 1

Question 1

Is a collection of facts such as number, words, measurement, observation, symbol or even just a description of things

Answer 1

DATA

Question 2

Is a raw fact that process into information

Answer 2

DATA

Question 3

Data should be of high quality, meaning that they should be _______

Answer 3

accurate
complete
timely
consistent
accessible
relevant
concise

Question 4

Why Managing Data is Important

Answer 4

a) Less waste of money
b) Gaining competitive advantage
c) Better functioning organization

Question 5

Difficulties in managing data

Answer 5

▪ The amount of data increases exponentially with time.
▪ Data are scattered throughout organization
▪ Data come from multiple sources
▪ Data security, quality and integrity are critical yet easily jeopardized
▪ New sources of data such as blogs, podcasts, video casts and RFID tags and otherwise sensors are constantly being develope

Question 6

Data come from multiple sources

Answer 6

-Internal sources
-External sources
-Personal sources

Question 7

Data Management: The Hierarchy of Data

Answer 7

Bit(a binary digit)
Byte
Field
Record
File

Question 8

represent the smallest unit of data a computer can process “binary” means that bit can consist only of a 0 or a 1.

Answer 8

Bit (a binary digit)

Question 9

group of 8 bits represent a single character. It can be a letter, a number, or a symbol.

Answer 9

Byte

Question 10

a logical grouping of character into a word, a small group of words, or an identification number. Example, a student’s name in university’s computer files would appear in the “name” field. It can also contain an image or any other type of multimedia.

Answer 10

Field

Question 11

logical grouping of related fields.

Answer 11

Record

Question 12

group of related records.

Answer 12

File