Shared Flashcard Set

Details

A+ Objective 1.0 domian
N/A
56
Computer Science
Not Applicable
07/07/2010

Additional Computer Science Flashcards

 


 

Cards

Term
what are the characteristis of an ATX board?
Definition
20 pin PSU connector, 9.6"x 12" form factor, ps/2 connector, VRM (Voltage Regulator Module (built into power supply), Power is controlled by the MoBo
Term
What are the Characteristics of a full size AT board
Definition
12"x13.8", 5 pin DIN, VRM (not built in), 2 x PSU ps1/ps2, first motherboard to use CMOS, manually turned off PSU
Term
what are characteristics of an LPX/NLX Board?
Definition
for slim line computers, usually needs a riser card
Term
What are the Characteristics of a BTX board?
Definition
design allows for better airflow, hardare placement allows for less latency, lower back plane
Term
another name for a motherboard.
Definition
mobo or system board.
Term
What are the characteristics of a power supply?
Definition
fan(gets hot, cooled down); connector (mobo, cpu, hdd, video card, optical drive, floppy drive); on/off switch; VRM(voltage regulator module); Voltage Regulator (VR) US 115 - 110 on psu, EU 230 - 220 on psu;
Term
What are the characteristics of an AT Power Supply Unit(PSU)?
Definition
physical on/off switch, used in older desktops, its used for AT/Baby AT MoBos
Term
What are the characteristics of an ATX MotherBoard PSU(power supply unit)?
Definition
no physical on/off switch, used in most common desktops today, its used with ATX/NLX MoBos, ATX MoBo doesnt manual power shut down.
Term
what is a RIMM?
Definition
Rambus-Inline Memory Module
Term
what characteristics of SRAM(static random access memory)?
Definition
doesnt require power to retain memory, high speed, used for CPU Cache (L1, 2, 3), very expensive
Term
What Characteristics of DRAM(dynamic random access memor)?
Definition
Does require power to retain memory; used in SIMM/DIMMs;
Term
What is characteristics is SDRAM (Syncronous Dynamic Random Access Memory)
Definition
synchronizes with CPU; 168 pin DIMMS
Term
What are the Characteristics of DDR (double-data rate) SDRAM?
Definition
184 pin DIMMs; extra power; double-data tranfers
Term
What is the Characteristics of DDR2-SDRAM?
Definition
240 pin DIMMs; requires additional power
Term
What is Volatile Memory?
Definition
requires power to retain memory
Term
What is non-volatile memory?
Definition
does not need power to retain memory
Term
What are characteristics of Older EDO(extended data output) RAM?
Definition
60-70 ns
Term
What is the characteristic of Modern RAM?
Definition

100Mhz = 10ns

133 Mhz = 6ns

Term
How fast do compatible combinations of RAM run?
Definition
it will run at the lowest rate
Term
What is ROM?
Definition

Read Only Memory

non-volatile memory

cannot alter

Term
What is PROM?
Definition

Programmable ROM

non-volatile

programmable

can be alter just once

Term
What is EPROM?
Definition
Erasable PROM, non-volatile, programmable, can be altered through a quartz crystal, shine with UV linght into the quartz crystal
Term
What is EEP-ROM?
Definition
Electronically EPROM, non-volatile, programmable, update firmware through software, chip doesnt have to be removed
Term
what is flashing?
Definition
using software to reprogram(firmware update) EE-PROM
Term
DVI-I has how many pins?
Definition
28 pins
Term
how many pins does DVI-D have?
Definition

18 - 24 pins

18 single link

24 dual link

Term
VGA has how many pins?
Definition
15 pins
Term
What is a driver?
Definition
is software that provides a means of communtication between an OS and a device.
Term
display installation consideration
Definition
device drivers, PS watage, is it compatible, cables & connectors
Term
what was the original keyboard?
Definition
XT keyboard
Term
what is the common standard keyboard?
Definition
AT enhanced
Term
what keyboard provides a keyboard split in half for better wrist position?
Definition
Ergonomic keyboards
Term
What provides for faster typing?
Definition
Dvorak keyboard
Term
what is a mechanical mouse?
Definition
mechanical sensors that sense the direction of the ball inside the mouse
Term
What is an optical mouse?
Definition
uses a laser to detects the mouse movement
Term
What is a track ball?
Definition
a turned upside down mouse and the ball is mounted on the case.
Term
What is a touchpad?
Definition
a touch sensitive pad where you run your fingers across the surface to send eletric signals to the computer.
Term
what examples of special input devices?
Definition
bar code reades and touchscreens
Term
what are two types of biometric input devices?
Definition
biometric mouse and biometric keyboard
Term
what input device selection tips?
Definition
keyboard (does the user need a ergonomic or wireless), poitning device (does it need to be optical, wireless or both).
Term
input device installtion factors?
Definition

is the driver current?

do i have an avalible port?

follow manufacturers instructions

Term
what kind of ports, cables, and connections are there for input devices?
Definition
serial, 5 pin DIN, PS2 6 pin DIN, USB cable, Wireless infared, wireless FR, bluetooth.
Term
What is a KVM and what is it used for?
Definition

Keyboard, Video, Mouse

used for multiple computers or servers without the need for excess keyboards, mouses, and monitors.

Term
What excatly is a bus?
Definition
data paths to transmit data
Term
What is a PCI bus?
Definition

33 or 66 MHz and 133 MBps throughput.

supports 5 devices per bus

10 devices per system (2 buses)

Term
What is AGP?
Definition

is a brown slot

is used for video cards

AGP 1x is 266 MBps

AGP 2x is 533 MBps

AGP 4x 1.07 GBps

AGP 8x 2.1 GBps

Term
What is PCIe used for adn its throughput?
Definition

video cards and high speed network adapters (10/100 MBps)

uses serial transmission

1x lane 250 MBps

16x lanes 4 GBps

Term
What is a PC cards?
Definition

also know as PCMCIA

small form factor and used for laptops

Term
What are the types of PC cards?
Definition

Type I 3.3 mm thick (16 bit)

-used for memory

Type II 5.0 or 5.5 mm thick (16 or 32 bit)

-used for dongles

Type III 10.5 mm thick (16/32 bits)

- Hard Drives

Term
What are the types of Adapter Cards?
Definition
video, multimedia (sound card), network, I/O adapters, storage (RAID controller cards), modem (RJ 11 port)
Term
What are considerations for installing Adapter Cards?
Definition
compatibility, available slots, correct driver, use Device Manager to confirm successful installation
Term
What are the types of Multimedia Devices?
Definition
Speakers, mic, webcam, digital camera, MIDI Device, TV Tuner Card
Term
what are the Multimedia Device installation considerations?
Definition

Adapter card slot availablility

Device Drivers

Cables

Term
What are the characteristics of USB 2.0?
Definition

-480 Mbps

- 127 devices per bus

Term
what are the characteristics of IEEE 1394/FireWire?
Definition

1394 400 (4 pin, unpowered square shaped connector)

1394 800 (6 pin, bullet shaped powered connector)

Term
What is IEEE 1284?
Definition
parallel printer cable
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