We shall discuss about some basic parts of Computer -
system unit
monitor
keyboard
mouse
floppy disk drive
flash memory reader
CD or DVD drive
hard disk drive
printer
USB Memory stick
audio ports
joystick port
keyboard port
mouse port
network connection
parallel or printer port
power supply
RAM
serial ports
USB port
video port
laptop
external harddrive
scanner
ear phones
speakers
Description on some above points are :-
1. system unit (CPU-Central Processing Unit) -
This is the box that contains the computer's main working components. It may rest on the floor or be on a desk.
2. Monitor
Looks like a tv screen. The computer displays information to you on this screen
3 . Keyboard -
The most familiar input device is the keyboard. Users type the text directly into the computer. There are a number of layouts of the keyboard. In a QWERTY layout the keys are arranged in the same order as that of a type writer. This is called QWERTY because the keys Q-W-E-R-T-Y occur on the left top row of the keyboard. The keys in this type of keyboard can be grouped into following five types:
1. Function keys – F1 to F12 are programmable keys used as short cut keys to perform certain functions
2. QWERTY keys – alphanumeric keys arranged in same order as that of type writers.
3. Special purpose keys – Tab, Caps lock, Shift, Ctrl, Alt, Esc, Backspace, Enter, Print Scrn, Scroll Lock and Pause/Break are special purpose keys.
4. Numeric pad keys – separate section in the keyboard used for entering numeric data.
5. Cursor control keys- these are used to navigate the cursor on the monitor.
Dvorak keyboards were introduced to improve typing efficiency with simpler layout. However it has yet to overcome the popularity of QWERTY keyboards. Concept keyboard layout has flat board containing a grid of switches. An overlay image is placed on top of the grid to indicate what will be done on pressing different areas of the keyboard. Such keyboards are useful for children who may find QWERTY keyboard quite complicated to use. Other variation in the keyboards is based on the language variations. For example, the US and UK keyboards are quite similar but are very different from the French keyboard.
4. Mouse
Along with the keyboard, the mouse is the main way of telling your computer what you want it to do. It looks a bit like a real mouse because of its shape
5. Printer
The printer is there to get paper copies of stuff that you or family members want or something that interests you from online. Make sure you put more paper in the printer so you won't ran out of paper.
6. Network connection
The network connetion is like the phone jack. You can get internet by plugging the cord in the modem and computer, but first you ought to call the cable or the telephone company to connect the internet.
7. Scanner
Takes a visual picture of a picture or a document on papper and digitaly stores it on a computer.
system unit
monitor
keyboard
mouse
floppy disk drive
flash memory reader
CD or DVD drive
hard disk drive
printer
USB Memory stick
audio ports
joystick port
keyboard port
mouse port
network connection
parallel or printer port
power supply
RAM
serial ports
USB port
video port
laptop
external harddrive
scanner
ear phones
speakers
Description on some above points are :-
1. system unit (CPU-Central Processing Unit) -
This is the box that contains the computer's main working components. It may rest on the floor or be on a desk.
2. Monitor
Looks like a tv screen. The computer displays information to you on this screen
3 . Keyboard -
The most familiar input device is the keyboard. Users type the text directly into the computer. There are a number of layouts of the keyboard. In a QWERTY layout the keys are arranged in the same order as that of a type writer. This is called QWERTY because the keys Q-W-E-R-T-Y occur on the left top row of the keyboard. The keys in this type of keyboard can be grouped into following five types:
1. Function keys – F1 to F12 are programmable keys used as short cut keys to perform certain functions
2. QWERTY keys – alphanumeric keys arranged in same order as that of type writers.
3. Special purpose keys – Tab, Caps lock, Shift, Ctrl, Alt, Esc, Backspace, Enter, Print Scrn, Scroll Lock and Pause/Break are special purpose keys.
4. Numeric pad keys – separate section in the keyboard used for entering numeric data.
5. Cursor control keys- these are used to navigate the cursor on the monitor.
Dvorak keyboards were introduced to improve typing efficiency with simpler layout. However it has yet to overcome the popularity of QWERTY keyboards. Concept keyboard layout has flat board containing a grid of switches. An overlay image is placed on top of the grid to indicate what will be done on pressing different areas of the keyboard. Such keyboards are useful for children who may find QWERTY keyboard quite complicated to use. Other variation in the keyboards is based on the language variations. For example, the US and UK keyboards are quite similar but are very different from the French keyboard.
4. Mouse
Along with the keyboard, the mouse is the main way of telling your computer what you want it to do. It looks a bit like a real mouse because of its shape
5. Printer
The printer is there to get paper copies of stuff that you or family members want or something that interests you from online. Make sure you put more paper in the printer so you won't ran out of paper.
6. Network connection
The network connetion is like the phone jack. You can get internet by plugging the cord in the modem and computer, but first you ought to call the cable or the telephone company to connect the internet.
7. Scanner
Takes a visual picture of a picture or a document on papper and digitaly stores it on a computer.
Nice work!
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