Bubble- Jet Printer

The Bubble-jet Printer is the new advanced inkjet printer. These product is very low in cost and very light weight. Bubble-jet printers work by create heat to vaporize the ink to produce bubbles that are then push through the ink head as very tiny drops of ink on the paper.

Components of Bubble-jet Printer:

• Paper Tray- Is were you load your paper into the printer. This is the plastic try located on the front of printers.


• Paper Feed Sensor- This tells the printer when there is no paper avaliable when you are trying to print and when the printer is jammed.


• Pickup Rollers - The rollers that are inside the printer. These rollers are used to roll the paper from the paper feeder into the printer.


• Separator Pads- This is what keeps more then one sheet of paper from coming through.


• Printhead and Carriage- The printer head is the nozzles that the ink goes through. On most printers the printhead is located on the bottom of the printhead carriage which holds the ink cartridges.

Motherboard (MB)

Motherboard (MB) also known as the planner board or the system board is the spine of the computer. All components for the computer connect to the motherboard. The motherboard is what allows you to communicate and also send data. This is the most important piece of a computer. Since we know that all components are connected to the motherboard I am about to list some of the common components that can be found on it. The common components on a motherboard are: Chipsets, expansion slots and buses, memory slots, CPU, power connectors, onboard disk drive connectors, keyboard connectors, peripheral ports, BIOS, CMOS battery, Jumper, and Firmware I am going to go in depth about these components later. The MB comes in two major types which are: Nonintegrated and Integrated system board.

Nonintegrated:
On this motherboard all the components like the video and USB ports are added using the expansion slots on the board. These system boards are very easy to fix because you don’t have to replace the board when a component breaks you just need to go a purchase the same component and reconnect it to your computer. These motherboards are not being used in computers now but you may still find some.

Integrated:
On this Motherboard the components like sound and the modem are already attached. Some people believe that there are a lot of drawbacks with this board. I say this because f a component breaks most people will tell you that you need to purchase a new motherboard. But from my reach I have found that you don’t need to do that you just have to go and purchase a expansion card for the component that broke.

ISA Expansion Slots

ISA Expansion Slots & Cards
The Industry Structured Architecture as known as ISA or AT Bus is used in most PC's to add expansion slot cards. ISA are more commonly used for adding video cards, networking cards, and external serial ports. When looking up information on ISA you will find that it comes in two versions which are: 8 Bits & 16 Bits slots. The 8 Bit expansion slot was introduced in early 80's.The 8 Bit bus is very slow and runs at a 4.77 MHz The 8 bit expansion cards are small and have one set of fingers on them. The fingers are those gold lines on the card. The 16 Bit expansion slot was also introduced a couple of years later and runs faster because it operates at 8 MHz speed. The 16 Bit ISA bus expansion slot has two sets of fingers on them. The 16 Bit ISA bus can be found in 286, 386, 486, and Pentium computers. The 8 Bit and 16 Bit expansion cards can use the same slot on the system board. The ISA expansion slots are normally black.

8 - Bit Expansion Card & Slot:

16 -Bit Expansion Card & Slot














Since I know what the ISA Expansion Slot is I now have to answer the question How is the ISA Expansion Slots used?

ISA Expansion slots are used in the real world to expand your capabilities. This basically expands what you computer can do. So let say from a computer tech point of view if I wanted to expaned the video component on my computer I would just go to the store and purchase a video expansion card that will be compatible with my expansion slot on my motherboard.

Multi-monitor

Have the ability to work on multiple documents at one time is awesome. You can do this with setting up multiple monitors on your computer. With this feature you will be able to work on two things at one time.

Multi-monitors:
Are multiple monitors that are hooked up to one computer. A lot of people use them to view two documents at one time. Some of the most common places we see multiple monitors being used are in: record studios, graphic design companies, and video editing companies. When setting up your multiple monitors you need to make sure you have the right components like: two video cards or either one video card that has multiple video outputs. Without the right components you will not be able to set up dual monitors (multi-monitors).

Settings changes for multiple monitors:
Changing the settings for your multi- monitors is very easy you have to navigate back to your display settings and click on the number 2 which is the second monitor to active it and then check the extended monitor but to be able to connect another monitor to your laptop or desktop computer. It is as easy as one, two, three and you 2 monitor is hooked up. You will have to set up the refresh rate and resolution to make the settings match for both monitors.

Refresh Rate

Have you ever been working on your laptop or desktop computer and you feel like the screen resolution is not correct. Well there is a reason for that your Refresh Rate may not be set correctly. I know a lot of people are wondering what a Refresh Rate is at first I didn't know what it was either but after reading Chapter 3 I have a better idea. I am now going to example what the Refresh Rate is and show you the proper steps to changing the Refresh Rate on your laptop or desktop computer.

Refresh Rate:
This is the display rate for which your computer is renewing the images on it. The correct refresh rate will resolve the issues like screen flickering and any other display issues you may have with your monitor. The normal default refresh rate is done per second and is measured in Hertz. Let’s take my laptop for an example: My default Refresh Rate is 60 Hz this means that my image is being refreshed 60 times in one second. If you set your refresh rate too high it will make your screen unusable and you will normally get an error message stating that the refresh rate is not compatible with this monitor. So you have to make sure your set the correct refresh rate. Now I am going to show you how to change you refresh rate on your computer.

Changing Refresh Rate:
It is very easy to change your refresh rate on your computer. You just need to navigate to the display setting on your computer and then click your advance settings. This will bring up another box and on that box you should navigate to the monitor tab and there is where you can change your refresh rate.

What is a Computer and What is the Components?

In my reading of the book I found out that a computer is a device that can help you store, receive, and even process data. We all know that computers are broken down into two parts known as the hardware and the software. Below is a picture of the hardware and the software and there definitions.

Hardware:
The hardware on a computer are things like: keyboard, mouse, speakers, and monitors which are the physical part of the computer which are everything that you can see and physical touch.

Software:
The software on a computer are the programs you install on your computer. The software is used to tell the hardware on the computer what to do. Software are broken down into operating systems and application programs.

A computer can come in many sizes and also have many types. There are two major types of computers people normally buy and they are: Portable (laptop, notebook), and Desktop. Both the Portable and the Desktop computers are made up of the components and they are:

1.) Motherboard – The spin of the computer which is where all the components are attached.
2.) CPU – This carries instructions to the different parts of the computer.
3.) Hard Drive- Are where the files are stored on the computer.
4.) Power Supply- The source of the electrical power.
5.) RAM – Is the memory, the computer storage.
6.) Video- Is how you view images on the computer.
7.) Sound- Is the audio for the computer.
8.) Optical Drive (CD-RW, DVD-RW, CD-RW/DVD-RW) - Reads data from a disk.
9.) Case- Houses the computer components.

When purchasing a computer you must make sure that you have some knowledge of what a computer is and the things that come with it. You should always remember the things like the monitor and keyboards are the hardware of the computer and the things like Windows 7 and Norton security are the software of the computer. Having the knowledge of these things will help you learn the major computers functions more easily.