Day 1

 

Computer

C-Common

O-Operating

M-Machine

P-Purposely

U-Used for

T-Technological

E-Educational

R-Research..

Difination:- Computer is an Common Operating Machine Purposely Used for Technological and Educational Research..

Computer Division

     Hardware                                                                                      Software

Input               OutPut                                     Application                 System             Utility

-Keyboard       -Monitor                                  -MS-Office                  -Windows        -Antivirus

-Mouse            -Printer                                     -Tally                           -Linux              -Driver

-Joystick          -Scanner                                  -Language                    -Unix               -Port Driver

-LightPen         -Projector

 

Types of Keyboard

1.      ADB

2.      XT

3.      PS/2

4.      Mini PS/2

5.      USB, and Bluetooth or wireless keyboard. 

Types of Keys In Keyboard

1.      Alphabate key(A to z)

2.      Numeric key(0 to 9)znjhtzfgjuhn

3.      Airthmatic key(+ - * / %)

4.      Function Key(f1 to f12)

5.      Logical Keys(< > =)

6.      Special Keys (Symbolic Keys)

Types of Mouse

1.      Mechanical (Trackball mouse)

2.      Optical(P/S2)

3.      Wireless (Usb mouse)

Types of Joystick

1.      Digital joysticks

2.      Paddle joysticks

3.      Analog joysticks 

4.      Analog-styled joystick

5.      Joypads

Types of LightPen

1) Corded light pens :- most older light pens with a cord that attaches to the back of the pen . these kinds of pens do not have to be recharged , the cord can be cumbersome.

2) Battery light pens :- the cross light pen shines when it is used , the pen produces a bright light and can last long time on its battery .

3) Design pen :- light pen is also a type of pen that allows designers to sketch using light .

4) Led light pens :- this pen produces bright colours when it is squeezed

OUTPUT

Types of Monitor

1.      CRT (cathode ray tube) monitors

2.      LCD (liquid crystal display) monitors

3.      LED (light-emitting diodes) monitors

4.      Plasma Display Panel

5.      TFT(Thin Film Transistor)

 Types of Printer

1. Impact printers
1.  Dot-Matrix Printers
2. Daisy-wheel printers
3. Line printers
4. Drum printer
5. Chain printers
6. Band printers
2. Non-impact printers
1. Ink-jet printers
2. Laser printers

 Types of scanner

1.      Flatbed Scanners

2.      Sheet-Fed Scanners

3.      Integrated Scanners

4.      Drum Scanners

5.      Portable Scanners

Types of Projector

1.      XGA projectors

2.      WXGA projectors 

3.      HD projectors

4.      4K projectors

5.      Home Theater Projectors

6.       Business Projectors

7.      DLP Projectors

8.      LCD Projectors 

9.      Portable Projectors    

What are computer gadgets?

Desktop gadgets

Currently, there are thousands of computer gadgets available online, but not all are important. It therefore requires your decision and research. As we have already said, desktop gadgets will help to do some things faster or reduce information access steps; however, they do have negative side as well. Installing desktop gadgets may slow down computer performance, since these gadgets are designed to start with system program. This will dictate that you should only select and install the right desktop gadgets that are beneficial.

 

Windows 7 comes with some popular desktop gadgets such as calendar, clock, weather, News headline feed, slideshow etc. For example, while you are working, you can view current news without going to news web sites.

 

Computer Hardware gadgets

Computer hardware gadgets are devices that assist day-to-day computing experience. Hardware gadgets include headsets, music players, webcams, USB splitter, screen filters, card readers, security cables, keyboard covers etc.

Hundreds of PC gadgets are introduced each month from several manufacturers. If you want to have more information, you can visit geek.com or other related sites.

Laptop computer gadgets

Laptop computers are designed to carry around with you. Particularly if you are a traveler, having laptop computer is an ideal solution for any computer job. However, apart from your laptop computer, there are additional laptop gadgets you need to carry while traveling.

These laptop gadgets include wireless mouse, wireless keyboard, keyboard cover, laptop security cable, surge arrester, Laptop/Tablet stand, external modem etc. Actually, it all depends on your current situation and the place where you are going to travel.

 

Choosing computer gadgets

Normally, application gadgets are free to download. Microsoft has many desktop gadgets (download.microsoft.com) that are available freely. However, it is advisable to download application gadgets that are only beneficial for your current need. In addition, make sure that it is compatible to your current operating system. This is because some application gadgets may freeze or slow down your PC.

Comparing to application gadgets hardware gadget are not available for free. However, mostly these types of products are cheap and can be purchased from any computer store. You will find gizmos (another name for gadgets) for personal use or if you want to give them to your children or friends as a gift.

As more tech gadgets come to the market every day, make sure you often visit the following popular computer gadgets and news sites to stay in tune with latest gadgets.

- Geek.com

- PCworld.com

- Coolest-gadgets.com

- bbc.com (technology news)