COAL lec Flashcards

(109 cards)

1
Q

All of the electronic and mechanical equipment in a
computer

A

Hardware

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2
Q

used to describe computer
programs that perform a task or tasks on a computer
system.

A

software

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3
Q

System Software are?

A

Operating system (Linux, AMD)

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4
Q

Utility programs

A

Anti virus

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5
Q

application softwares

A

word, solid works

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6
Q

collection of electronic and
mechanical devices operating as a unit.

A

Computer system

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7
Q

main parts of computer system

A

SYstem unit , monitor, keyboard, mouse, speakers

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8
Q

is the main container for system
devices. It protects the delicate electronic and
mechanical devices from damage.

A

system unit

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9
Q

are devices that connect to the system
unit using cables or wireless technologies.

A

peripheral (Example Monitorm keyboard, printer, plotter, scanner, speakers)

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9
Q

two main manufacturers of processor:

A

AMD (Athlon and Turion )
Intel (Pentium and centrino)

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10
Q

A IC is supplied on a single silicon
chip. It’s function is to control all the computers
functions.

A

Central processing unit

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11
Q

a series of instructions. When a
program is run, the processor carries out these
instructions in an orderly fashion.

A

computer program

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12
Q

addition, subtraction etc

A

arithmetic

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13
Q

comparing data and acting according
to the result

A

logical

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14
Q

move data from place to place within the
computer system - memory to the processor for
addition - memory to a printer or disk drive etc.

A

Move

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15
Q

The processor is speed is measured by?

A

Megahertz (MHz) - I million clock ticks every second
Gigahertz (GHz) - 1 billion clocks every second

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16
Q

multi-core processors can have two,
three or four processor cores on a single chip. true or false

A

True

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17
Q

main computer memory.

A

Random Access Memory

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18
Q

contents of memory are lost if the
computer is turned off

A

Volatile

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19
Q

memory IC’s on a circuit board

A

Module

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20
Q

This memory is for desktop computer

A

DIMM’s (dual inline memory module)

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21
Q

this memory is sold for notebooks computer

A

SODIMM’s (small outline dual inline memory
module)

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22
Q

DDR Three tyoes of DDR

A

Double data Ram
DDR1
DDR2
DDR3

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23
Q

the main circuit board
for the computer system.

A

Motherboard or system board

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24
different processors require different sockets and a motherboard must be chosen to suit the processor intended for use
processor socket
25
In processor socket Socket 478 is for?
Intel Pentium IV
26
In processor Socket 775 is for?
Intel Dual Core and COre duo
27
Socket 754 - AMD Athlon * Socket 939 - AMD Athlon 64 * Socket AM2 - AMD Athlon X2
skip
28
controls data flow around the computer.
Chipset
29
What are the two chips that consists in Chipset
Northbridge and southbridge
30
Chipset that data flow between memory and processor
Northbridge
31
Chipset that data flow to the devices
southbridge
32
a path through which data can be sent to the different parts of the computer system.
Buses
33
it converts Alternating Current (AC) Direct Current (DC)
POwer supply
34
how many volts are use in ciruit boards in the computer
3.3 and 5 volts
34
how many volts are use in disk drives
12 volts
35
APM
advances power management
36
Connects to the motherboard and supplies the 3.3 and 5 volt supply for the board.
Main Connector
37
Connects IDE hard drives and optical drives.
Molex Connector
38
Connects floppy disks
Berg Connector
39
Sata drives
SATA connector
40
interfaces between peripheral devices and the computer. They are mainly found at the back of the computer but are often also built into the front of the computer chassis for easy access.
ports
41
a 9-pin port. Often called Com ports - Com1, Com2 etc. Mice and external modems were connected to these ports. They are turquoise in colour.
Serial port
42
a 25-pin port used to connect printers, scanners, external hard disks, zip etc. to the computer. Burgundy in colour, they are often called LPT ports - LPT1, LPT2 etc.
Parallel Port
43
used to connect a monitor to the computer system.
Video port
44
This is a 15-pin port and is blue in colour. It is an analogue port and is being replaced by the DVI port.
VGA port
45
white in colour, it is a digital port.
DVI port
46
used to connect keyboards and mice to the computer. The keyboard port is purple and the mouse port is green
PS/2 port
47
used to connect a modem to a telephone line. RJ11 is the technical term for the port.
Modem Port
48
intended to replace Serial, Parallel and PS/2 ports with a single standard. 127 devices can be connected to a single USB port.
USB port
49
devices can be connected and disconnected while the computer is on
hot swappable
50
original standard - transfer data of 1.5MBps.
USB 1
51
current standard - transfer rate of 60MBps.
USB 2
52
future standard (2009) transfer rate of 600MBps.
USb 3
53
(IEEE 1394) is an Apple technology There are two versions available and a third is planned:
firewire port
54
IEEE means?
Institute of Electrical and Electronics Engineers
55
used to connect to a network. Known as RJ45, it is larger than a modem port.
Ehternet Port
56
used to input and output audio from the computer.
Audio Ports
57
Light blue - Line in - connect external devices * Lime - Connect the speakers to this port. * Pink - Connect a microphone to this port.
skip
58
screen images are made up of dots
pixels (picture elemetns)
59
must process each of these pixels to create the image.
Graphics Card
60
800 x 600 - 480,000 pixels * 1024 x 768 - 786,432 pixels * 1280 x 1024: - 1,310,720 pixels * 1600 x 1200: - 1,920,000 pixels
skip
61
two types of graphics card
AGp (accelerated graphics port) and PCI express
62
Allows for two graphics cards to improve the performance
SLI (Scalable Link INterface)
63
Connects the sound card to a PCI slot
PCI connector
64
is used to connect digital musical instruments to the computer.
MIDI socket (Musical Instrument Digital Interface port )
65
These are used to connect microphones, speakers, stereo systems etc to the computer.
Audio Jacks
66
What are the two main functions of sound card?
DAC (digital to analogue converter) to prepare audio for speakers etc. ADC (analogue to digital converter) to convert the audio coming into the computer.
67
allows computers join a network. Can be wired or wireless.
network card
68
The standard used is called ?? covers wired and wireless networks.
Ethernet
69
the fast ethernet speed is?
100 mbps
70
the gigabyte ethernet speed of transmission is?
1000 mbps
71
introduced in 1999, it has a transmission rate of 11Mbps and a range of 30 Metres.
The B standard
72
introduced in 2003, it has a transmission rate of 54Mbps and a range of 30 Metres.
the G standard
73
introduced in 2006, it has a transmission speed of 540Mbps and a range of 50 metres.
The N standard
74
Internet access using a telephone line.
modem
75
The standard transmission speed of a modem
56kpbs
76
volatile - contents lost when power is turned off.
primary storage (memory) `
77
non-volatile - can store files when power is turned off.
Secondary Storage (disk Drives)
78
coated with tiny iron particles which can be magnetised to north and south to represent the binary digits 0 and 1.
metal disk (platter)
79
used to magnetise the particles on the disk surface to represent the data held in RAM. The computer can now be switched off and a copy of the data is safe for later use.
Read-write Head
80
IDE
integrated drive electronics
81
The disks connect to the motherboard using a ribbon cable.
IDE
82
SATA
(Serial Advanced Technology Attachment)
83
allow faster data transfer speeds than IDE. There is no master/slave arrangement with SATA and each drive has it’s own cable.
SATA
84
drives use lasers to sense pits and lands mechanically pressed into a polycarbonate disk.
Optical Drives
85
use a dye layer to mimic the lands and pits created mechanically on commercial disks.
CD-R
86
The three laser intensities
Intensity 1 - Read data * Intensity 2 - Burn data * Intensity 3 - Erase data
87
Replaces floppy drives in new computers. They can read media cards from most digital cameras:
Card Reader
88
displays images generated by the graphics card.
Monitors
89
LCD (Liquid Crystal Display)
CRT (Cathode RayTube)
90
ratio of standard monitor
4:3
91
ratio of standard widescreen monitor
16:9
92
connector is used for analogue signals
VGA
93
connector is used for digital.
DVI
94
native resolution at which the image is crisp. Other resolutions are possible but the image quality decreases.
LCD monitors
95
Primary input device
Keyboard
96
contains the letter and number keys, shift keys, spacebar, return key etc.
typing keys
97
These keys are arranged as on a calculator.
numeric keypad
98
programmable keys used by software for special functions. E.g. - F1 - Help.
Function Keypad
99
screen and cursor control.
control keys
100
useful for use with notebook computers. Leaves users less prone to RSI (Repetitive Strain Injury)
Rubber Keyboard
101
Input device - uses point and click technology
Mouse
102
uses a ball to roll across the surface and move rollers attached to sensors inside the mouse - reflecting the ball movement as cursor movement.
ball mouse
103
camera takes thousands of images per second and sends them for digital processing. The red LED lights up the surface for the camera.
optical mouse
104
Output devices - produce a hardcopy ( permanent and readable) of computer data.
printer
105
two main technologies in printer
inkjet (Bubble Je)-uses an electric charge to vibrate a membrane. Laser - a heating element locally heats ink to form a bubble
106
use inkjet technology and are available in A3, A2, A1 and A0.
plotters
109
PCI
Peripheral Component Interconnect