Week 1 (Ch. 1, 3, 4)

Question 1

what are the three components of information systems

Answer 1

technology, people, processes

Question 2

what is a digital device

Answer 2

a device that processes electronic signals into discrete values

Question 3

what are analog signals

Answer 3

continuous signals that can be represented by a smooth wave

Question 4

what are binary values

Answer 4

two discrete values (1 and 0)

Question 5

what is a bit

Answer 5

each 1 or 0

Question 6

what is a byte

Answer 6

8 bits (1 character)

Question 7

what is the motherboard

Answer 7

main circuit board of the computer

Question 8

what is the CPU

Answer 8

brain of device, caries out commands sent by software

Question 9

what is a hertz

Answer 9

a cycle per second

Question 10

what is a dual core processor

Answer 10

a CPU with two processors to increase speed

Question 11

what is moores law

Answer 11

computers are becoming faster and cheaper

Question 12

what is RAM

Answer 12

working memory

Question 13

what form of memory is volatile

Answer 13

RAM

Question 14

what does the hard disk do

Answer 14

long term memory storage using disk

Question 15

what does the SSD do

Answer 15

long term memory storage using flash memory

Question 16

what is an example of removable media

Answer 16

USB drive

Question 17

how is CPU speed measured

Answer 17

clock speed , GHz (billions of cycles), hertz indicated time taken to complete a cycle

Question 18

how is motherboard speed measured

Answer 18

bus speed, MHz, speed at which data can move across the bus

Question 19

how is RAM speed measured

Answer 19

data transfer rate, Mb/s, time taken for data to be transferred from memory to system

Question 20

what are input devices

Answer 20

devices that allow for entering data

Question 21

what are output devices

Answer 21

devices that display or project data

Question 22

what is e-waste

Answer 22

discarded tech junk

Question 23

what does an operating system do

Answer 23

manages hardware and creates interface between hardware and user

Question 24

what do an application softwares do

Answer 24

performs specific tasks for the user

Question 25

what are examples of productivity softwares

Answer 25

word processing apps, spreadsheets, presentations etc (microsoft office)

Question 26

what are examples of collaborative systems

Answer 26

google drive, zoom

Question 27

what are utility softwares

Answer 27

programs that allow you to fix or modify your computer

Question 28

what are desktop softwares

Answer 28

applications installed on a personal computer

Question 29

what are enterprise softwares

Answer 29

softwares used by companies to manage multiple users in an organization

Question 30

what does a database management system (DBMS) do

Answer 30

stores and retrieves data that an application creates and uses

Question 31

what is cloud computing

Answer 31

applications made accessible through the internet

Question 32

what is software as a service

Answer 32

softwares that are rented rather than purchased

Question 33

what are private clouds

Answer 33

private server used by organizations

Question 34

what is virtualization

Answer 34

process of using software to simulate a computer or other device

Question 35

what is a proprietary software and what is a pro and con

Answer 35

developed internally, specific but expensive

Question 36

what is an off-the-shelf software

Answer 36

bought from somewhere else, cheaper but not neccesarily customized

Question 37

what is an open source model

Answer 37

source code available to public

Question 38

what is a closed source model

Answer 38

source code not available to public

Question 39

what is the bridge that connects the computer side and the human side of the system

Answer 39

data