An SSD is also a type of hard drive, but it doesn’t have any moving parts. It consists of a bank of flash memory that can hold a reasonable amount of data.
While SSD’s are increasing in size all the time, they aren’t cost-effective for storing large amounts of data.
A mechanical drive has a cheaper gigabyte to dollar ratio.
However, the SSD is a high-performance drive. It’s fast and cannot be as easily damaged by dropping it or taking a few knocks.
A power supply mounts inside the computer case. This converts the AC mains supply from the wall socket and supplies the correct DC voltages to all the components inside the computer.
A computer power supply supplies the following voltages:
- +3.3v: This voltage is supplied to the motherboard.
- +5V: This voltage is supplied to the motherboard and other internal components.
- +12V: This voltage is supplied to the motherboard and other internal components.
- -12V: This voltage is supplied to the motherboard.
You get different wattage ratings for power supplies. The higher the wattage, the higher the amount of electrical current can be made available to parts that need it.
The higher you go in Watts, the more the power supply will be likely to cost.
A power supply also comes with its own cooling fan. This helps all the internal components to stay cool when the power supply is subjected to bigger loads.
10. Monitor
A monitor is what you use to see a visual representation of the graphics data sent from the graphics card of the computer.
There are various types of monitors on the market. The most commonly used is a LED-backlit LCD monitor.
There are also a variety of different sizes with different aspect ratios. The aspect ratio is simply the ratio between height and width.
For example, a 16:9 aspect ratio monitor will have 16 parts wide to 9 parts in height.
There are also curved monitors, but they are more expensive.
Monitors also have a fast response time in order to keep up with the high demands required to eliminate delays with user input for gaming.
11. Keyboard
A keyboard is one of the ways to communicate with a computer. By typing a key from the keyboard, it sends a small portion of data to tell the computer which key was pressed.
The computer can use this information in many ways. An example could be a command or a character that can be used in a document.
A mouse allows the user to move a pointer displayed on the monitor and experience a more intuitive interaction with the computer.
These days mice have more buttons than the common three.
The three main buttons, however, allows the user to select, grab, scroll and access extra menus and options.
A computer mouse can be wired or wireless. The latter obviously requires batteries.
You can take a look at my favorite mouse right here.
Optical mice of today allow for very accurate precision and smooth movement.
Common external peripherals
Here are some common peripherals that get connected to a computer and extends its usefulness.
Printer
A printer can take an image sent by a computer and deliver it onto a sheet of paper.
It does this by using the data from the computer and by either using toner or ink, it deposits one of these in a controlled and accurate manner to form the image.
Scanner
A scanner can take anything on a piece of paper and scan it to produce a replicated digital image.
This is also very handy for saving physical photos that you want to preserve.
Once the photo is stored digitally, it won’t decay as a physical photo does over time.
Computer Speakers
Computer speakers can connect up to the sound card at the rear of the computer.
Another way they can be connected is by a monitor that already has built-in speakers.
Generally, the sound quality is poor from a monitor’ speakers. That’s why most people buy a set of computer speakers to have on their computer desk.
You can even connect up a 7.1 surround speaker system to certain sound cards.
This can add a nicer experience when it comes to gaming, playing music, or watching a film.
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COMPUTER INSIDE OPERATIONS
How to create a Folder in your System?
1)Go to windows explorer by clicking folder icon in status bar
2)click on This Pc in left hand panel
3)Select the folder(like Desktop or downloads or documents or pictures or drive(C or D or E) and click on that folder or drive
4)rightclick on the right panel-->choose new in the panel-->click on folder option
5)provide a name for folder--press ENTER key from keyboard
\ --backward slash
/--forward slash
: --colon
; --semicolon
> --greater than
< --less than
? --questions
Brackets:
[] --square brackets
{} --curly brackets(press shift
() --paranthesis(press shift 9 and 0)
_ --->underscore
How to Create file -text file
rightclick in any folder inside-->new -->click on textdocument option
provide a name for the file.
what is the extension of text file?
.txt
filename.txt
How to open the file?
mouseover on the file
rightclick on the file
then choose the option--open
How to Create a microsfot word document?
rightclick in any folder inside-->new -->click on Microsfot office word document
then provide a file name.
What is the extension of microsoft word document?
.docx
How to Create an excelsheet in particular folder.?
navigate to the folder
rightclick in the folder-->new -->microsoft office excel worksheet
provide a name for excel sheet.
what is the extension of excel sheet?
.xlsx
How to Create a image file?
right click in any folder inside-->new -->click on bitmap image.
Then provide a name.
what are different image file extensions?
.png
.jpeg or jpg
.bmp
.gif
how to create image file with microsoft paint?
in the windows search bar type the paint
double click on paint app ==then paint window will open to you.
how to save this paint file in particular folder?
Opening Paint -->Search paint from windows search bar at bottom left side-->Then type paint in search --click on paint app-->then draw something inside paint using tools
Click on file menu on top left side
click on save as
go to the folder where you want to save like c:\Test
provide the filename in filename editbox
select save as type --either gif or jpeg or png
click on Save button
How to Download Files from Websites?
i)Open any browser(Google Chrome, firefox,Microsoft Edge or internetExplorer and Safari etc..)
ii)Type the website url in browser address bar
iii)Press ENTER key from keyboard
iv)choose the file to download-->click on download link
v)File will download to downloads folder
How to Move downloaded file to particular folder?
1)Go to the Downloads folder
2)select the file
3)right click on the file
4)choose cut option or Ctrl + x
5)go to the folder where you want to paste the file(if folder is not there create new folder)
6)right click on the folder
7)choose paste or Ctrl + v
How to UNZIP the ZIP File?
PreCondition: You should have ZIP file in your folder
i)Right Click on the Zipped Compressed file
ii)choose extract All option
iii)click on extract button
iv)Another file Folder will be created with same zipped file name
How to Install Software in your System/laptop?
1)Download NotePad++ software
ii)Open the google.com in the browser
iii)type the notepad++ in search editbox
iv)press ENTER key from keyboard
v)Go to right website
vi)Choose the right version of the software
vii)Click on Downloads
viii)filename.exe is downloaded
ix)go to the downloads folder
x)double click on software application(.exe)
xi)open the windows application
xii)proceed the with installation
How to Uninstall Software in your System/laptop?
1)Type Control panel in bottom left side search bar -->Go to Control Panel
2)Click on Programs
3)click on Programs and Features
4)Select the software which you want to uninstall
5)Click on Uninstall
6)Do you want to uninstall completely-->click yes button
7)Proceed with uninstall process
