lecture 8a

Question 1

why is IT important?

Answer 1

• lot of people deal with technology
• IT is everywhere
• we use IT much so we are dependent of it
• IT enables organizational change

Question 2

what is IT needed for to understand?

Answer 2

• behaviour (how to use technology)
• new innovaitions in technology
• information systems
• social media

Question 3

what does a computer do?

Answer 3

• does the same as an infromation system. it comes in, processes things and comes out
• can store things

Question 4

what parts does the processing part of a computer consist of?

Answer 4

• central processing unit (CPU) > processor
• arithmetic-logic unit > does the core arithmetic
• control unit > makes sure the data can flow from one part to another

Question 5

what parts are there to storage in a computer?

Answer 5

• primary storage
• secondary storage

Question 6

what is the primary storage part in a computer?

Answer 6

the RAM, the storage a computer uses in real time, when you shut down the computer this storage will be lost

Question 7

what is the secondary storage in a computer

Answer 7

the hard drive, saved after turning the computer down

Question 8

what does binary mean in computers?

Answer 8

all data is visualized in number one or two. this is due to the origin where they were made on the idea that everything can be either turned on or off

Question 9

what does Moore’s law state?

Answer 9

we continue to innovate so we can put more information into a computer

Question 10

what different kinds of computers do we know?

Answer 10

• clients > end-users (phone, laptop)
• servers > computers that provide servers to other computers (storage, database)

Question 11

what is a network device?

Answer 11

devices that make sure computers van communicate with eachother

Question 12

what are examples of network devices?

Answer 12

• access device > used to access to a network
• interconnection device > used to make connections between devices
• mesh network > a network and connection device in one (googlee home)

Question 13

what is cloud computing?

Answer 13

a model of computing in which a computer processing, storage, software and other services is provided in a shared pool of virtualized resources.

Question 14

what are advantages to cloud computing?

Answer 14

• always access
• pay-as-you-need
• easy collaboration
• unlimited storage

Question 15

what are some disadventages to cloud computing?

Answer 15

• security
• trust
• loss of knowledge