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CompTIA Book > Ch. 3 The Visible PC > Flashcards

Ch. 3 The Visible PC Flashcards

1
Q

What are the two categories of programs?

A
  1. Applications

2. Operating Systems (OS)

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2
Q

Applications

A

Programs that get work done on a computer

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3
Q

Operating System (OS)

A

The support program that facilitates the installation and operation of applications on the computer

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4
Q

4 Stages of computer function

A
  1. Input
  2. Processing
  3. Output
  4. Storage
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5
Q

Input

A

The user inputs data to the computer

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6
Q

Processing

A

The computer runs calculations to process the data the user input

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7
Q

Output

A

Some form of response to the input of data by the user (e.g., the monitor displays something or a printer prints a document)

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8
Q

Storage

A

The computer stored input data and the results of processing

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9
Q

System Unit

A

The pc tower and everything contained within it

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10
Q

Peripherals

A

Every piece of equipment that attaches to the system unit to perform input and output (e.g., keyboard, mouse, monitor, printer, speakers, etc.)

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11
Q

Port

A

A hole on the system unit that accepts the plug of a peripheral (e.g., USB port, FireWire port, or ethernet port)

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12
Q

Plug

A

A type of projection on a peripheral that plugs into a matching port on the system unit (e.g., an RJ-45 jack)

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13
Q

Jack

A

Another name for Port

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14
Q

Connector

A

Another name for port or jack

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15
Q

mini-DIN connector

A

PS/2 connector, DIN-6;
6 pins;
Used for mice (light-green), keyboards (purple), subwoofers, and old video cards to connect to TVs

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16
Q

USB

A

Universal Serial Bus;
A general purpose port that accepts any number of devices;
Comes in 3 (at least) sizes: A, B, and mini-B;
Hot-swappable;
USB devices can be powered through the port

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17
Q

Hot-swappable

A

A term referring to the ability to insert and remove devices from a computer without having to restart

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18
Q

FireWire

A

IEEE 1394;
Used for specialized applications, such as streaming video from a camera to the computer;
6-wire or 9-wire connector; 4-wire on the peripheral end

19
Q

DB connector

A

D-sub, D-subminiature, D-shell;

9-37 pins, though most have 25 pins

20
Q

RJ connector

A

RJ-11 - Modem connection

RJ-45 - Ethernet connection

21
Q

Audio connector

A

1/8 inch connection, mini-audio connector;

Typically a green port

22
Q

Expansion slots

A

Slots on the system board that allow you to add further capabilities

23
Q

4 types of video connectors

A
  1. VGA
  2. DVI
  3. S-Video
  4. HDMI
24
Q

VGA

A

Video Graphics Array;
15-pin DB plug;
Color: Blue

25
Q

DVI

A 
Digital Visual Interface;
Color: White
DVI-D - All digital
DVI-A - Analog
DVI-I - Digital and analog
26
Q

HDMI

A

High-Definition Multimedia Interface

27
Q

MIDI

A

Musical Instrument Digital Interface;
15-pin DB;
Allows you to attach a musical instrument or joystick to your computer

28
Q

S/PDIF

A

Sony/Philips Digital Interface Format;
Analog or optical;
Designed to consolidate the input of various sound devices

29
Q

Networks

A

Groups of PCs that share information

30
Q

NIC

A

Network Interface Card; Originally an add on card. The network port is now integrated into the system board, but the name NIC has stuck.

31
Q

Modem

A

Hardware that allows you to connect your PC to a network via a standard telephone line

32
Q

Parallel port

A

A 25-pin DB ports used to connect printers. This is largely legacy technology at this point. Replaced by USB and network printers

33
Q

eSATA

A

A high-speed port for use with some external HDDs and optical drives

34
Q

Case

A

The external shell and the internal framework that holds the computer components

35
Q

CPU

A

Central Processing Unit; microprocessor;
The piece of hardware that performs all the calculations

CPUs generate a lot of heat and require the installation of a heat ink and fan for correct operation.
CPUs come in different packages that define the shape and size of the CPU as well as how it attaches to the system board.

36
Q

RAM

A

Random Access Memory; Volatile memory; stores files and applications that are currently in use by the CPU. The data stored in RAM is erased when the power is turned off.

37
Q

Motherboard

A

System Board; the circuit board that hosts the different parts of the computer, including RAM, the CPU, the HDD, etc.

38
Q

Power Supply

A

Provides power to your PC

39
Q

Floppy Drive

A

A 3.5” disk drive; legacy technology. Most computers will not contain these drives any longer.

40
Q

Hard Drive

A

Static Memory; HDD; Stores the data that is not currently being used by the CPU. This memory is static; it remains on the hard drive when the power is turned off.

41
Q

PATA

A

Parallel ATA; Transfers data in parallel along a ribbon cable

42
Q

SATA

A

Serial ATA; Transfers data in serial (one bite at a time) along a cable

43
Q

Optical Drives

A

CD, DVD, or BluRay drives

CompTIA Book (6 decks)

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