module vi - card

7/29/2019 Module VI - Card

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ACLC San Pablo Laguna :

Web Development Technology (WDT)

Module V Review Questions:

What is Hard Disk?How do you measure the speed of hard

disks?

What the two access standards of hard

disk?How do you choose a hard disk?


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Date

Prepared by:

Subject

Topic

School

Course

ACLC San PabloLaguna, Philippines

Module VI

Card

SY 2012-2013

Engr. Rionel Caldo

Module VI - cardTC422A

Perform Computer

Operations

ACLC San Pablo Laguna :

Web Development Technology (WDT)

Web Development

Technology (WDT)


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Video Card

VGA (Video Graphics Array) Card is the one sending the monitor signal to the monitor.

A computer video card is placed in the motherboard, where it transfers video signals through a

cable to your monitor. The video card can either be built into the motherboard or be a separatecard that is placed in either theAGP or PCI-Express Slot.

The computer graphics cards major job in a computer is to convert graphic patterns into signals

for the monitor's screen. However in recent times as the graphics card has become more

advanced it has taken some of the jobs previously assigned with the CPU and through a

graphics pipeline adds 2D and 3D effects and it also adds textures.


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When you are choosing one Video Card you

have to consider:

The best way to see what video card to buy is to consider how you're using your

computer now.

There are several categories:

Server

If you're using your computer as a mail server, FTP server, print server, or even a

game server, you definitely do not need a high-end video card. What you need is a

simple, no-frills low-end video card.

Simple Applications

Say you're using the PC for simple applications only, for example, word processing,

email or web surfing. Again, you do not need the best video card out there. A cheap

and decent one will do the trick.


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When you are choosing one Video Card you

have to consider:

Complex Applications

If you need to perform more complex tasks like 3D computer aided design or video

editing, it will make more sense to go for a heavy duty card. Screen resolution and

image quality tend to be important factors for this type of work. Look for a video card

whose processor which supports a high screen resolution, with ample graphics

memory.

General Games

If you'll only play simple games like Minesweeper, Reverse or Backgammon, then

my advice is to save your money and just get a simple video card. No need for the

latest 3D graphics gizmo.


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Sound Card

The sound card is an essential component in the PC, since it translates digital

signals into analog audio for your listening pleasure. Well, that's true, if you want to

play games or run multimedia applications in your PC. Otherwise, it may not be

necessary, especially in business environments.


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Sound card ports

A computer sound card is used by a computer for music, sounds during applications

and entertainment (TV, movies and games). A typical sound card usually has four

ports. The largest port is the MIDI (Musical Instrument Digital Interface)/Game

port, which is used for connecting a joystick or gaming controller to. The other three

ports look similar and are generally green, pink and blue.


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Sound card ports

Underneath each port will be a small engraving of what each port does. Thepink

port is for a microphone which can record sound to the computer. The greenport is line out and this is where the speakers are connected to produce sound from

the computer. The blue port is line in and this is for connecting a CD-player or

cassette tapeto the computer.

Remember a sound card by itself is not enough to hear sound. You will still need to

purchase some computer speakers or a headphone set. If you want to make use of

the microphone feature then you will need to buy a computer microphone and you

should then be able to record sound to your computer.


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How to Choose a Sound Card

When you are choosing one Sound Card you have to consider:

1. First thing to consider here is your intended usage of the sound card. If all you

want is basic sound support and not spectacular 3D surround sound, I'd say go buy

a cheap, simple card or even rely on your motherboard's on-board sound.

2. If you want great surround sound and better speaker connectivity options, then

you'll want to consider a dedicated sound card.


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Modem (Modulator Demodulator) Card

A device that translates data from your PC into a form that can be sent to other

computers over regular phone lines. The modem also receives signals from other

computers and converts it into something your computer can understand. A modemis the device most home computers use to connect to the Internet.

A Modem converts digital information into sound so that it may be transmitted over

telephone lines. When the modem hears this sound on the other end it converts the

sound back into digital information.


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Modem Card

There are two types of modems:

INTERNAL

EXTERNAL

External modems are slightly more expensive than internal modems and are housed

in an external box or enclosure. External modems require a socket on the computer

or port (usually the serial port on the back of your computer.) The serial port is also

called a COM port, com for communications.


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Network Card

A network card (also called a Network AdapterorNetwork Interface Card, orNIC for short), is

a device that allows computers to be joined together in a LAN, or local area network.

Networked computers communicate with each other using a given protocol or agreed-upon

language for transmitting data packets between the different machines, known as nodes .

The network interface card acts as the liaison for the machine to both send and receivedata on the LAN.

The most common language or protocol for LANs is Ethernet, sometimes referred to as IEEE

802.3. A lesser-used protocol is Token Ring. When building a LAN, a network interface card

must be installed in each computer on the network and all NICs in the network must be of the

same architecture. For example, all must either be Ethernet cards, Token Ring cards, or an

alternate technology.


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Network Card

An Ethernet network interface card is installed in an available

slot inside the computer. The NIC assigns a unique addresscalled a MAC (media access control) to the machine. The

MACs on the network are used to direct traffic between the

computers. The back plate of the network interface card

features a port that looks similar to a phone jack, but is slightly

larger. This port accommodates an Ethernet cable, whichresembles a thicker version of a standard telephone line.

Ethernet cable must run from each network interface card to a

central hub or switch. The hub or switch acts like a relay,

passing information between computers using the MAC

addresses and allowing resources like printers and scanners tobe shared along with data.


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Network Card (Cont.)

A network interface card does not have to be hard wired with

physical cable. Wireless Ethernet cards are installed like theirwired counterparts, but rather than a port for an Ethernet cable,

the card features a small antenna. The card communicates with

the central wireless switch or hub via radio waves. Wireless

LANs may have some restrictions depending on the material the

building is made from. For example, lead in walls can blocksignals between the network interface card and hub or switch.

When buying components for a LAN, make sure the NICs and

hub or switch have the same capabilities. The entire network

must be either wired or wireless, so a wireless network interface

card cannot talk to a wired switch or hub. In addition, newerversions of hardware will likely support more features and/or

greater speeds than older versions. Make sure your central

switch or hub can utilize the highest capabilities of the network

interface card under consideration.


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1. In your opinion, which of the 4 cards is themost important?

2. Which sound card would you choose for

your computer?3. Which port of the sound card is the most

essential for you?

4. Would you rather attach a wired Ethernet

card to your computer, or a wireless one?

Reflection


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Colossians 3:17Whatever you do or say, doit as a representative of the Lord Jesus,

giving thanks through him to God the

Father.

Your goal is toworkin such a way thatyou are a good representative of Jesus


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END of Presentation

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