Blocl 15

Question 1

What is the purpose of the CPU

Answer 1

Considered the “brains” of the computer and is responsible for carrying out instructions.

Question 2

What are the 3 parts of the CPU

Answer 2

1. Control unit 2. Registers
2. Arithmetic logic unit

Question 3

What type of memory is-referr3d to as permanent memory and retains data after power is off?

Answer 3

ROM

Question 4

What type of memory is volatile and loses all data after a power shutdown?

Answer 4

RAM

Question 5

What is a Hard Drive

Answer 5

A storage device used for storing a retrieving digital information.

Question 6

What is the purpose of an input device?

Answer 6

To allow the entry of data and commands into computer memory.

Question 7

What is the purpose of an output device?

Answer 7

Convey the information generated vlby a computer to the user.

Question 8

What is a storage device?

Answer 8

Is used for storing and retrieving digital information.

Question 9

What are platters on a hard drive

Answer 9

Silid circular surfaces which data is stored upon.

Question 10

Whatbare tracks and sectors of the hard drive platters?

Answer 10

Tracks is where data is stored in locations formed by concentric rings sector are equal seperated parts or sections on each track.

Question 11

What are 4 steps to processing within the information processing cycle?

Answer 11

1. Input 2. Processing 3. Storage
2. Output

Question 12

What is the purpose of RAM withbin the data storage portion of the information processing cycle?

Answer 12

Store data required for only a short period of time.

Question 13

What is a deiver

Answer 13

Type of software that allows a computer to talk to the hardware connected to it.

Question 14

What is a modem

Answer 14

A type of device that allows digital devices to communicate over analog telephone lines.

Question 15

What is modulation/demodulation

Answer 15

The process of converting a signal from digital to analog and analog to digital

Question 16

What is the purpose of a switch

Answer 16

Its a computer network device that connects several devices together on a computer network.

Question 17

How dose information travel into the switch from another device

Answer 17

In a cillection of data known as a frame

Question 18

What are 3 methods of error detection of a switch

Answer 18

1. Store-and -forward
2. Cut-through
3. Fragment-free

Question 19

What is a myltiplexer

Answer 19

Is a communication device that combines several data or voice signals for transmission over one single medium.

Question 20

What is a primary reason for using a multiplexer?

Answer 20

Save on communications cost

Question 21

What is a bridge

Answer 21

Is a device that connects 2 or more network (LAN) segments and effectively joining them into one logical network.

Question 22

What is a router

Answer 22

Is a networking device that forwards data packets between computer networks.

Question 23

In the event a particular route fails l, what will a router provide.

Answer 23

Dynamic Path Assignment, may also be used for data cingestion on a pathway.

Question 24

What is the main difference between a bridge and a router?

Answer 24

Bridges connect while a router directs

Question 25

What is the advantage of using unshielded over shielded twisted pair cable?

Answer 25

Unshielded is the cheapest and most common type of cable.