Components of Computer Sys (1)

Question 1

is a case that contains electronic components of the computer used to process data

Answer 1

system unit

Question 2

The inside of the system unit on a desktop personal computer includes (6):

Answer 2

1. Drive bays
2. Powersupply
3. Sound card
4. Video card
5. Processor
6. Memory

Question 3

the main circuit board of the system unit

Answer 3

Motherboard

Question 4

contains integrated circuits

Answer 4

computer chip

Question 5

also called the central processing unit (CPU), interprets and carries out the basic instructions that operate a computer

Answer 5

Processor

Question 6

two things in a processor

Answer 6

1. control unit

2. ALU (arithmetic logic unit)

Question 7

three types of processor

Answer 7

1. Dual-core processor
2. Multi-core processor
3. Quad-core processor

Question 8

component of the processor that directs and coordinates most of the operations in the computer

Answer 8

control unit

Question 9

performs arithmetic, comparison, and other operations

Answer 9

Arithmetic Logic Unit (ALU)

Question 10

For every instruction, a ___ repeats a set of four basic operations, which comprise a machine cycle

Answer 10

processor

Question 11

Steps in a Machine Cycle

Answer 11

1. Control unit fetches math problem’s instructions and data from memory
2. Control unit decodes math problem’s instructions and sends to ALU
3. ALU performs calculations on data
4. Results of calculation is stored in memory

Question 12

Processor begins fetching a second instruction before it completes the machine cycle for the first instruction

Answer 12

Pipelining

Question 13

leading manufacturers of personal computer processor chips are?

Answer 13

Intel and AMD

Question 14

Memory size is measured in?

Answer 14

kilobytes (KB or K), megabytes (MB), gigabytes (GB), or terabytes (TB)

Question 15

[T or F] Each location in memory has an address

Answer 15

True

Question 16

system unit contains two types of memory:

Answer 16

1. Volatile memory

2. Non-volatile memory

Question 17

Loses its contents when power is turned off; RAM

Answer 17

volatile memory

Question 18

Does not lose contents when power is removed; flash memory, ROM

Answer 18

non-volatile memory

Question 19

Three basic types of RAM chips exist:

Answer 19

1. Dynamic RAM (DRAM)
2. Static RAM (SRAM)
3. Magnetoresistive RAM (MRAM)

Question 20

RAM chips usually reside on a ___ and are inserted into ___.

Answer 20

memory module, memory slots

Question 21

speeds the processes of the computer because it stores frequently used instructions and data

Answer 21

memory cache

Question 22

is a blank ROM chip that can be written to permanently

Answer 22

PROM (programmable read-only memory) chip

Question 23

is any data and instructions entered into the

memory of a computer

Answer 23

input

Question 24

series of related instructions that tells a computer what
tasks to perform and how to perform
them

Answer 24

program

Question 25

is an instruction a user issues by replying to a question displayed by a program

Answer 25

User response

Question 26

[T or F] Programs don't respond to commands that are user issues

Answer 26

False

Question 27

is any hardware component that allows users to enter data and instructions into a computer

Answer 27

input device

Question 28

is an input device that contains keys | users press to enter data and instructions into a computer

Answer 28

keyboard

Question 29

how many keys are mostlyn in keyboards?

Answer 29

between 101 - 105

Question 30

Most desktop computers have (6):

Answer 30

1. between 101 - 105 keys 2. application key 3. windows key 4. toggle keys 5. numeric keypad sa right side 6. function keys

Question 31

also known as the cursor, is a symbol on the screen that indicates where the next character you type will appear

Answer 31

insertion point

Question 32

two ways to connect wireless keyboards into computers

Answer 32

1. bluetooth | 2. IrDA

Question 33

incorporates comfort, efficiency, and | safety into the design of the workplace

Answer 33

Ergonomics

Question 34

an input device that allows a user to control a pointer on a screen

Answer 34

pointing device

Question 35

small symbol on the screen that changes based on where the user hover this with the use of pointing device

Answer 35

pointer

Question 36

pointing device that fits under the palm of your hand comfortably

Answer 36

mouse

Question 37

3 other pointing devices:

Answer 37

1. trackball 2. touchpad 3. pointing stick

Question 38

stationary pointing device with a ball on its top or side

Answer 38

trackball

Question 39

small square or rectangular shaped pointing device that is sensitive to touch and pressure

Answer 39

touchpad

Question 40

pressure-sensitive pointing device shaped like a pencil eraser positioned between keys on the keyboard

Answer 40

pointing stick

Question 41

touch-sensitive display device

Answer 41

touch screen

Question 42

With ____, you touch a stylus or digital pen on a flat surface to write, draw, or make selections

Answer 42

pen input

Question 43

Video games and computer games use a ___ as the input device that directs movements and actions of on-screen objects

Answer 43

game controller

Question 44

A ____ is a mobile device that allows | users to take pictures and store them digitally

Answer 44

digital camera

Question 45

3 types of digital camera:

Answer 45

1. field camera 2. studio camera 3. point-and-shoot camera

Question 46

2 factors affect the quality of digital camera photos:

Answer 46

1. resolution | 2. no. of bits stored in each pixel

Question 47

The number of horizontal nd vertical pictures in a display device

Answer 47

resolution

Question 48

the smallest element in an electronic display

Answer 48

pixel

Question 49

[T or F] The LESSER bits used to represent a pixel, the more colors and shades of gray that can be represented

Answer 49

False

Question 50

process of entering input by speaking into a microphone

Answer 50

voice input

Question 51

is the computer’s capability of distinguishing spoken words

Answer 51

Voice recognition

Question 52

The process of entering any sound | into the computer

Answer 52

audio input

Question 53

allows users to record, compose, mix, and edit music and sounds

Answer 53

Music production software

Question 54

The process of capturing full-motion images and | storing them on a computer’s storage medium

Answer 54

video input

Question 55

Record video on a ___ or use a ___ to convert analog signals to digital

Answer 55

digital video (DV) camera, video capture card

Question 56

steps of using a video input

Answer 56

1. record with a dv camera or use a memory card 2. plug the cord of camera into the port of the computer 3. transfer videos and images

Question 57

is a type of digital video camera that enables a user to: capture images and videos, send email with vid attachments, add live img in instant messages, broadcast live images, and make video calls

Answer 57

web cam

Question 57

is a type of digital video camera that enables a user to: capture images and videos, send email with vid attachments, add live img in instant messages, broadcast live images, and make video calls

Answer 57

web cam

Question 58

is a meeting between two or more geographically separated people

Answer 58

video conference

Question 59

4 examples of scanners and reading devices

Answer 59

1. flatbed 2. pen or handheld 3. sheer-fed 4. drum

Question 60

involves reading characters from ordinary documents

Answer 60

Optical character recognition (OCR)

Question 61

a document you return to the company that creates and sends it

Answer 61

turnaround document

Question 62

reads hand-drawn marks such as small circles or rectangles; scans the documents and matches the patterns of light

Answer 62

Optical mark recognition (OMR)

Question 63

uses radio signals to communicate with a tag placed in or attached to an object

Answer 63

RFID (radio frequency identification)

Question 64

reads information on the tag via radio waves

Answer 64

RFID reader

Question 65

read the magnetic stripe on the back of cards

Answer 65

Magnetic stripe card readers

Question 66

read text printed with magnetized ink; used by banks for check processing

Answer 66

MICR (magnetic ink character recognition) devices

Question 67

converts MICR characters into a form the computer can process

Answer 67

MICR reader

Question 68

obtain data directly at the location where the | transaction or event takes place; used in restaurants, groceries, warehouses etc.

Answer 68

data collection devices

Question 69

authenticates a person’s identity by verifying a personal characteristic

Answer 69

biometrics

Question 70

computer that allows users to send data to | and/or receive information from a host computer

Answer 70

terminal

Question 71

records purchases, processes, payments and updates inventory

Answer 71

POS terminal

Question 72

allows users to access their bank accounts

Answer 72

ATM (Automated Teller Machine)

Question 73

self service DVD rental machine

Answer 73

DVD Kiosk

Question 74

3 examples of biometric input

Answer 74

1. fingerprint reader 2. iris recognition system 3. hand geometry system