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ITC Flashcards

1
Q

are the components that provide information and instructions
onto the computer.

A

Input devices

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2
Q

has alphabetic, numeric, and function keys for the entry
of information.

A

computer keyboard

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3
Q

consists of a monitor, keyboard, and communication lines attached
to a computer system. It accepts customer inputs for processing.

A

terminal

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4
Q

three classifications terminal

A

—smart, dumb, and intelligent terminal

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5
Q

device accepts data when you push telephone buttons. It triggers
the telephone, which in turn sends signals to the computer.

A

touchtone

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6
Q

handheld pointing device called _____ to move a pointer on the
screen.

A

mouse

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7
Q

is a device for pointing with a base and a vertical handle that pivots
in all directions. You usually use this to play computer games.

A

joystick

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8
Q

is a screen that allows users to interact with the system by
touching specific areas on the screen.

A

touch screen

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9
Q

A wire connects
it to a light pen through which the user can sketch images.

A

graphics tablet or digitizing tablet

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10
Q

is a mouse with an X, Y & Z-axis used for developing and moving
around 3D environments.

A

Space mouse

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11
Q

translate images of text, photo, and other graphics into digital
form. The digitized image can then be manipulated or reproduced using a
computer.

A

Scanning devices

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12
Q

It
converts texts, drawings, and photographs into electronic files stored in a
computer system.

A

image scanner or graphic scanner

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13
Q

is a conventional
scanning device used in price tags. It reads the characters and
converts these characters into digital format

A

wand reader or an Optical Character Reader (OCR)

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14
Q

(OCR)

A

Optical Character Reader

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15
Q

is a device that read bar codes (zebra-like stripes) on most
products.

A

Barcode reader

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16
Q

device can read the numbers
printed (using magnetic ink) at the bottom of checks. It can only read a limited
number of characters, and banks usually use it.

A

The Magnetic Ink Character Recognition (MICR)

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17
Q

(MICR)

A

The Magnetic Ink Character Recognition

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18
Q

scan hardcopy and transmit
data to other fax machines using telephone lines.

A

Fax machines or facsimile transmission machines

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19
Q

record music and other sound signals and transform them
into digital format.

A

Multimedia devices

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20
Q

transform video or films into digital format. It converts signals
coming from videocassette recorders, laser disk, or camcorder into digital form
through a video card installed in the computer.

A

Video converters

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21
Q

collects specific kinds of data from the environment and converts
these into computer-readable data.

A

sensor

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22
Q

Its role is transform data inputted by the user which has been processed by the computer into human readable form.

A

output devices

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23
Q

It displays images or shows
programming instructions and data using grids of dots called pixels.

A

Display screens or monitors

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24
Q

two types of display screens.

A

cathode-ray tube (CRT) and flat-panel displays.

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25
Q

CRT

A

cathode-ray tube

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26
Q

uses a
vacuum tube like that in television

A

cathode-ray tube (CRT)

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27
Q

are much thinner,
weigh less, and consume less power

A

flat panel displays

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28
Q

The flat-panel screen is categorized into
three depending on the type of substance they are made of

A

Liquid-crystal
display (LCD), electroluminescent (EL), and gas-plasma display.

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29
Q

(LCD)

A

Liquid-crystal
display

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30
Q

(EL)

A

electroluminescent

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31
Q

is a circuit board in the computer where the resolution is determined, including
the number of colors and how fast images refresh on the display screen.

A

graphics adapter card (video card)

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32
Q

A device that prints the characters and the symbols from the computer unto the
paper is called a

A

printer

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33
Q

The commonly used types of printers are

A

dot-matrix (impact
printer), inkjet, laser printers, and thermal printers (non-impact printers).

34
Q

can imprint in black and white or in color. They have built-in
microprocessors that convert the characters and instructions from the
computer into a series of coordinates

A

Plotters

35
Q

Plotters come in three designs

A

pen (could either be flatbed
or drum), electrostatic and thermal

36
Q

produce sound output from the computer

A

Speakers

37
Q

is a newer version of a telephone with a TV-like
screen and a built-in camera that allows you to see the person you are
exchanging messages directly on the screen

A

A picture phone or smartphone

38
Q

a built-in camera that allows you to see the person you are
exchanging messages directly on the screen

A

(web-cam)

39
Q

combination of printing, scanning, copying, and faxing into a single device

A

multifunction device

40
Q

example of a
multifunction device is

A

Okidata Doc-It

41
Q

Okidata Doc-It combines four pieces of
office equipment into one

A

photocopier, fax machine, scanner, and laser
printer.

42
Q

is a computer-generated simulated reality that indulges a
person into a sensation of three-dimensional space. It can recreate physical
places and phenomena real to people. Nowadays, augmented reality is now a
thing. Ituses the body’s senses of sight, sound, motion, and touch
to simulate real objects or places.

A

Virtual reality (VR)

43
Q

(VR)

A

Virtual reality

44
Q

are automatic devices that perform functions ordinarily ascribed to
human beings or that operate with what appears to be almost human
intelligence.

A

Robots

45
Q

Robots are of several kinds –

A

industrial robots, perception
systems, and mobile robots.

46
Q

is a computer science field that attempts to develop a machine that
can work like humans or perform activities that humans usually do. It is a subset
of AI. It tries to simulate human activity from talking, speaking, and even
thinking.

A

Robotics

47
Q

is where the instructions and
data are stored while processing. The data stored are usually given unique
addresses or memory locations to facilitate storage and retrieval. The CPU
typically accesses the data through its address.

A

The main memory (also called primary storage)

48
Q

The two types of storage inside
the main memory are

A

RAM and ROM

49
Q

RAM

A

Random Access Memory (RAM) is the part of the memory the computer uses
to store volatile data. These are the given instructions that can be changed or
erased later. When data are loaded or put in the RAM, it means writing data.

50
Q

ROM

A

Read-Only Memory (ROM) stores the given instructions for the routine
operations of a computer. This part is non-volatile; it still holds the instructions
even when there is a power interruption or shut-off. From the name, we can
only read the information or instructions stored.

51
Q

is the part of the memory the computer uses
to store volatile data. These are the given instructions that can be changed or
erased later.

A

Random Access Memory (RAM)

52
Q

When data are loaded or put in the RAM, it means

A

writing data

53
Q

When anything access data from the RAM, it means

A

reading data

54
Q

stores the given instructions for the routine
operations of a computer. This part is non-volatile; it still holds the instructions
even when there is a power interruption or shut-off.

A

Read-Only Memory (ROM)

55
Q

are temporary storage locations. These are fast-accessed during
computer processing. Bits and bits of information from the main memory and
those stored back in the main memory are temporarily stored here while
performing computations.

A

registers

56
Q

performs all the arithmetic and logical
calculations of the CPU. The arithmetic operations consist of addition,
subtraction, multiplication, and division. Logical calculations involve
comparisons of two or more numbers.

A

Arithmetic Logic Unit (ALU)

57
Q

(ALU)

A

Arithmetic Logic Unit

58
Q

is the part of the processor that acts as a traffic controller
for the flow of instructions in the main memory. The functions are controls input
and output device, passes data to the ALU for computation, and, most
importantly, fetches the instructions from the main memory for execution in the
CPU.

A

Control Unit or CU

59
Q

CU

A

Control Unit

60
Q

are bundles of tiny wires that serve as the communication path between
components of the CPU.

A

Buses

61
Q

The three most essential buses are

A

data, address,
and control buses.

62
Q

stores data permanently. It is outside the primary storage
and server, just like a filing cabinet. It provides cheap, non-volatile high capacity
storage

A

Secondary storage

63
Q

Two classes of secondary storage

A

direct access media and sequential
access storage devices (SASD)

64
Q

(SASD)

A

sequential
access storage devices

65
Q

supports sequential or random access where data can be accessed directly

A

Direct Access Media (i.e., floppy disk)

66
Q

It accesses data in a
specific order.

A

Sequential Access Media (e.g., magnetic tape)

67
Q

is a sequential access storage media that stores blocks of data
along the length of its tape. Just like any sequential storage media, accessing
data is serial. It is a traditional medium that is round, robust, high-capacity, and
the cheapest storage medium. It is still famous for its long-term storage. High
volume storage even though it is the slowest in terms of retrieval of data.

A

Magnetic tape

68
Q

is a direct access storage media, which, like a phonograph
record, is divided into tracks and sectors.

A

magnetic disk

69
Q

Common types of magnetic disks

A

hard drives
and floppy disks.

70
Q

are stacks of permanently mounted rigid magnetic disks in a
computer unit, be it internally or externally. We often use these as virtual
memory or extension of RAM. Have a relatively high capacity and fast retrieval
speed but very fragile.

A

Hard disks

71
Q

is a solid-state storage device that uses integrated
circuit assemblies as memory to store data persistently, typically using flash
memory

A

solid-state drive (SSD)

72
Q

(SSD)

A

solid-state drive

73
Q

are already obsolete and are much slower than hard drives and
have a minimum storage capacity only. It is ranging from 1.44 Mb to 200 Mb.

A

Floppy disks

74
Q

Bigger storage capacity for floppy disks is called

A

zip disk

75
Q

are rigid disks of plastic onto which data is recorded by
specialized lasers that physically burn pits into the disc.

A

Optical disks

76
Q

CD

A

compact disc

77
Q

Typical
forms of optical disks are

A

CD-ROM, CD-R, CD-RW, DVD, DVD-R, DVD-RW,
and Magneto-Optical Disk.

78
Q

is a non-erasable disk that
stores computer data, usually in the standard system, with a 12-cm diameter
with CR Recordable (CD Writer), can write data on the disk only once. Still, with
CD-Rewritable, it can erase and rewrite data on the disk up to 1,00 times.

A

CD-ROM (Compact Disk - Read Only Memory)

79
Q

CD-ROM

A

(Compact Disk - Read Only Memory)

80
Q

a hybrid between the magnetic disk and
optical disk, uses optical technology for reading and magnetic recording
techniques assisted by optical focusing

A

Magneto-Optical Disk (MO)

81
Q

(MO)

A

Magneto-Optical Disk

82
Q

is a direct access storage media (a size of a chewing gum stick)
that can hold data from 4Mb (older version) up to 32GB (latest release, future
concept). It needs a port or a reader that could link the memory stick to the
PC—a portable media.

A

Memory stick

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