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From Flashcardlet > CPT 209 Test 1 > Flashcards

CPT 209 Test 1 Flashcards

(67 cards)

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1
Q

the amount of information that can be sent or received through a computer or network connection in one second

A

bandwidth

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2
Q

the process of data bypassing the CPU and accessing RAM directly, designed as channels.

A

DMA or direct memory access

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3
Q

a circuit board that plugs into another board to provide extra functionality

A

daughterboard, sometimes called riser cards

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4
Q

provide standard methods for saving, retrieving, changing, printing, and transmitting information.

A

operating system

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5
Q

A flexible interface usable for hard and optical drives, scanners, and other devices

A

SCSI or small computer system interface

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6
Q

numbering also referred to as base 16. 0-9 and A-F. 3A would = 58 or 3 * 16 + 10 (for the A)

A

hexadecimal

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7
Q

a single lane in the computer where information transfers one bit at a time

A

serial transfer

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8
Q

each address equals one byte of RAM

A

memory address

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9
Q

“software on a chip” it’s job is to control the device to which the chip is connected

A

firmware

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10
Q

a type of connection for IDE hard drives and optical drives utilizing a 16-bit bus width

A

PATA/EIDE

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11
Q

the spatial frequency of a wave

A

wave number

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12
Q

layout and size of a motherboard

A

form factor

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13
Q

PS/2, parallel, serial, RJ45 ethernet are examples of

A

integrated ports

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14
Q

programs used to create, store, modify, and view info you create

A

application software

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15
Q

occurs when 2 objects of different voltages come into contact with each other

A

ESD electrostatic discharge

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16
Q

base 10 system used for everyday math

A

decimal

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17
Q

measures the frequency or radio and electrical signals in cycles per second

A

hertz

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18
Q

software

A

provides instructions that tell the hardware what to do

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19
Q

represents the logical foundation of the computer.

A

motherboard

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20
Q

Serial advanced technology attachment

A

SATA

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21
Q

set of wires used to transmit data between a device and the system

A

I/O port address

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22
Q

sometimes used to make expansion slots usable that would otherwise not be available because of clearances inside the case

A

riser cards

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23
Q

arrangements suitable for a program to store data that you created

A

file format

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24
Q

each host adapter controls a single drive, such as a hard disk or DVD drive

A

SATA host adaptor

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25
numbering system involving only 1's and 0's
binary
26
use multiple lanes for data transfers, most use 8 bits
parallel transfers
27
physical parts of the computer
hardware
28
a set of wires that run btwn the CPU and devices in the computer; they interrupt the CPU so that they can transmit data
IRQ interrupt requests
29
provide support for additional I/O devices and high speed video/graphics cards
expansion slots
30
narrow ones enable daisy chaining of 7 devices and wide 15.
SCSI
31
What causes ESD
the human body constantly gathers static electricity and the transfer of this could easily damage a computer
32
how to prevent ESD
Use an antistatic strap touch the chasis of the computer antistatic mat and bags
33
how to convert from decimal to binary and back
write out 128 64 32 16 8 4 2 1 | either add the numbers to get decimal or subtract to get binary
34
10001000 is what in decimal
136
35
200 in decimal would be what in binary
11001000
36
2Ch would be what in decimal
44
37
100 in hexadecimal
64 (6 * 16 and 4)
38
what represents bits and bytes
b and B
39
essential ports of a computer
parallel, PS/2 mouse and keyboard, USB, RJ45 ethernet, and audio
40
how do hardware and software work together
software tells the hardware what to do
41
reasons a desktop computer may fai
``` overheating loose add cards inability to start the computer drive failures front panel failures battery failure BIOS chip failure ```
42
most common operating systems in use today
various versions of Windows, ex, 7, Vista, XP
43
what is recommended before opening a computer case
Check your system manual for warranty | Unplug the computer
44
how many signals a system bus carries and what they are
4: data, power, control, access
45
memory slots different styles
older systems use SDRAM 3 section memory slots w 168 pin memory modules newer use 2 section DDR2 and 3 240 pin slots but are not interchangeable
46
type of expansion slots available
PCI, AGP, PCIe, AMR/CNR
47
different processors and their architectures
AMD and Intel, x86 (32 and 64 bit) and x64 ( an extension of x86 that enables larger files)
48
what should be included in a tool kit
``` philips and straight blade screwdrivers torx drivers hex drivers 3 claw parts removal tool hemostat clamps needle nose pliers eye brow tweezers penlight magnifier jeweler's screwdriver set ```
49
six step troubleshooting process
identify the problem establish a theory of probable cause test the theory to determine cause establish a plan of action to solve & implement solution verify full functionality;prevent if possible document findings and outcomes
50
bits in a byte
8
51
bytes in megabit
131,072 bytes
52
bytes in a kilobit
128 bytes
53
bytes in a gigabit
134,217,728 bytes
54
which system locations use the different numbering systems
decimal-storage sizes binary-data storage hexadecimal-laddresses in data storage
55
kilohertz, MHz, GHz,Terahertz
1000, 1,000,000, 1 billion, 1 trillion
56
different utility programs on a system
CHKDSK, disk management, defrag
57
2 major types of commands used in an OS
internal and external
58
3 major parts of a computing environment
hardware, software, firmware
59
what resource conflicts can affect
can cause the devise to fail
60
serial, parallel, PS/2 mouse and keyboard ports are sometimes referred to as
legacy ports
61
can be used for many types of add on cards, including network, video, audio, I/O and storage host adapters
PCI slots
62
was introduced as a dedicated slot for high speed video in 1996
AGP
63
pretty much replaced AGP and PCI slots
PCIe slots
64
each host adapter uses a 40 pin interface and can control up to two devices
PATA/IDE
65
How do notebook computers vary from desktops
less expensive models do not support swappable drives, no floppy drives, have integrated pointing devices built into their keyboards
66
unique failures of laptops
PC card not pushed in all the way, expelling without first using Safely Remove Hardware, If network dongles are damaged, the card is useless
67
different types of software
OS, application programs, utility programs

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