Computer Computents

Question 1

Specifications of a Serial cable

Answer 1

max 50 ft, 20kbps

Question 2

specifications of a parallel cable

Answer 2

max 15ft, IEEE 1284 compliant cables; bidirectional communication 3 types: Compatibility mode/ standard (SPP) - 360,360bps ( unidirectional ) Enhanced Parallel Port (EPP) - 2Mbps - (bidirectional ) Extended Capability Port (ECP) - 2.5Mbps ( bidirectional )

Question 3

specifications of a USB cable

Answer 3

max 5 hubs and 127 devices 3 different speeds

Question 4

Specifications of Firewire IEEE 1394

Answer 4

4.5m cable limit, max 16 daisy chain devices with power repeaters and hubs no than 63 devives per bridgeable bus

Question 5

USB 1.1 specs

Answer 5

1.5 mbps - 12mbps max

Question 6

USB 2.0

Answer 6

480 mbps max speed

up to 127 devices on one usb port

Question 7

USB 3.0

Answer 7

5 Gpbs max speed

up to 127 devices on one usb port

Question 8

Firewire 400 ( IEEE 1394a)

Answer 8

100, 200 or 400 mbps half duplex

Question 9

Firewire 800 ( IEEE 1394b)

Answer 9

800 Mbps full duplex

Question 10

CD capacity

Answer 10

700mb max

Question 11

DVD capacity

Answer 11

4.7Gb data max

Question 12

DVD Double layer (DL)

Answer 12

9.4Gb max

Question 13

Blue- ray dvd

Answer 13

25gb per layer 4.5mbps

Question 14

IPCONFIG /all Command

Answer 14

gives the the ipaddress, mac address and

Question 15

DIR command

Answer 15

Show the directory you are in

Question 16

MD Command

Answer 16

Makes a directory

Question 17

RD Command

Answer 17

Removes the directory

Question 18

CD Command

Answer 18

Changes directory

Question 19

1024 bytes

Answer 19

1 kilobyte

Question 20

1 megabyte

Answer 20

1024 kilobytes

Question 21

1024 megabytes

Answer 21

1 gigabyte

Question 22

1024 gigabytes

Answer 22

1 Terabyte

Question 23

PGA ( pin grid Array )

Answer 23

A packaging of IC( integrated circuits) with pins arranged in a regular array on the underside of the package

Question 24

LGA ( Land Grid Array )

Answer 24

A surface-mount packaging for ICs with pins on the socket rather than on the integrated circuit

Question 25

Passive heat sink

Answer 25

Uses surface area, not a fan, for cooling

Question 26

Active heat sink

Answer 26

uses a variety of micro-technologies to air-cool components

Question 27

Heat Pipes

Answer 27

Uses fluid -filled tubes built into cooling fins.

Question 28

Water Pump

Answer 28

For computer to hot for fins and heat to cool

Question 29

Peltier Coolers

Answer 29

An electronic device that gets colder when a voltage is applied to it

Question 30

Phase-change cooling

Answer 30

uses a vapor-compression unit to cool components, its like an AC

Question 31

LGA 1366

Answer 31

work with ddr3 memory

Question 32

lga771/ socket J

Answer 32

used on high-end workstation and low end servers

Question 33

lga775/socket t

Answer 33

most popular intel socket with with ddr3 and ddr2 memory

Question 34

socket 478

Answer 34

used in dense micro PGA

Question 35

socket 423

Answer 35

No longer sold and has a 39 x 39 SPGA grid

Question 36

USB Type A Connector and port

Answer 36

Flat and rectangular

Question 37

USB type b

Answer 37

Square with a round bulge or square protruision on top.

Question 38

FireWire 4 pin

Answer 38

Used to connect external devices to the computer and consumer-electronic consoles

Question 39

FireWire 6 pin

Answer 39

Used for high speed communications

Question 40

Compnents of a display panel case

Answer 40

Flurescent Lamp LED Strips Inverters Wi-fi Antennas

Question 41

Thicknet Cables

Answer 41

carry up to 500 meters are used for ethenet network backbones rather than for the network nodes They are RG-8 cables

Question 42

Thinnet Cable

Answer 42

Support network segments up to 185 meters long When wired with rg58/u coaxial cable, limited functionality by attenuatin in the cable more flexible than other coaxial cables max of 30 node connections

Question 43

CAT 1

Answer 43

Up to 1 Mbps

Question 44

CAT 2

Answer 44

4 Mbps 4MHZ

Question 45

CAT 4

Answer 45

16 Mbps 20 MHZ

Question 46

CAT 7

Answer 46

10 Gbps 600 MHZ

Question 47

RJ 11

Answer 47

phone cable -

Question 48

RJ-45

Answer 48

Ethernet Cable

Question 49

ST Connector

Answer 49

Straight Tip - most popular fibre optic connection

Question 50

SC Standard connector

Answer 50

2.5mm2.5 mm ferrule that snaps into a network device with a simple push/pull motion.

Question 51

LC Local Connector

Answer 51

Are half the size of SC connectors, with a 1.25 mm snap-in ferrule.

Question 52

BNC Connector

Answer 52

Question 53

FTP ( File Transfer Protocol)

Answer 53

Enable local host to upload and download files and to request directory listings from a remote server

Question 54

SFTP ( Secure File Transfer Protocol)

Answer 54

Enables secure, encrypted file transfers using the Secure Shell (SSH) protocol. SSH encrypts all passwords and data, and uses a digital certificate for authentication.

Question 55

Electrophotographic

Answer 55

A printing process that uses electrostatic charges, toner and laser light to print high-quality images

Question 56

Apect Ratio

Answer 56

The ratio between the horizontal and vertical size of a display device

Question 57

CMOS

Answer 57

An area of memory that stores BIOS confiuration information

Question 58

Demodulation

Answer 58

The process by which a modem removes the carrier analong wave from the digital signal it carries

Question 59

RAID

Answer 59

a set of standards for extending disk-drive life, preventing data loss, and enabling uniterrupted access to data.

Question 60

HUB

Answer 60

a device that connects network devices and segment of a LAN

Question 61

RISER Card

Answer 61

a circuit board that connect to a motherboard to provide additional expansion slots or sockets