Question. What is computer?
Answer. Computer is an electronic machine. It is very usefull for us.
Question. What is computer fathers name?
Answer. Charells babbage (1943-1944)
Question. What is full form of COMPUTER?
C – Commonly/Completely/Calculation
O – Operated/Obedient/Operate
M – Machine/Memory
P – Particular/Processor
U – User/Used for/Unit
T – Trade/Technical/Type
E – Education/Everything/Easy
R – Research/Real/Right
Mainframe computer – Mainframe computer is a best computer in big business. For the management of their data. (IBM 360/370)
Mini computer – Mini computer is a best computer in small business. For the management of their data. (DEC PDP 11/45)
Personal computer – Personal computer is a best computer in families and individual user. With the passage of time.
O – Operated/Obedient/Operate
M – Machine/Memory
P – Particular/Processor
U – User/Used for/Unit
T – Trade/Technical/Type
E – Education/Everything/Easy
R – Research/Real/Right
TYPES OF COMPUTER
- Super computer
- Mainframe computer
- Mini computer
- Personal computer
Mainframe computer – Mainframe computer is a best computer in big business. For the management of their data. (IBM 360/370)
Mini computer – Mini computer is a best computer in small business. For the management of their data. (DEC PDP 11/45)
Personal computer – Personal computer is a best computer in families and individual user. With the passage of time.
Question. How many kinds parts of computer?
Answer. There are five kinds parts of computer.
- Monitor
- Keyboard
- Mouse
- CPU
- UPS (Central Processing Unit) Brain Of Computer
Question. How many kinds of devices?
Answer. There are three kinds of devices.
(1) In-Put Devices (Mouse, Keyboard, Joystick, Scanner, Microphone, Light Pen etc)
(2) Out-Put Devices (Monitor, Printer, Speaker,)
(3) Processing Devices (CPU- Central Processing Unit)
Question. What is mouse?
Answer. It is pointly in put devices. With the help of mouse we can drag and drop any figure and file on the screen.
MOUSE BUTTON DIVIDED INTO THREE PARTS
(1) Primary button – This key is used to give instruction. It cases all work such as to select file/folder text etc.
(2) Secondary button – This key is used in cases to see the properties, rename etc.
(3) Wheel (Scroll button) – It is between the mouse which is used to scroll the page.
Question. How many types of mouse?
Answer. There are two types of mouse.
1. U.S.B (universal Serial Base)
2. P.S (Personally Supply)
Question. What is Key-Board?
Answer. It is collection of different key on flout board. It is in-put devices. Which is known as key-board. It helps us to type the matter. Data or any information.
KEY-BOARD KEY DEVIDED INTO THREE PARTS
(1) MAIN KEY (2) FUNCTIONAL KEY (3) COMMAND KEY
1) MAIN KEY
(1) A To Z – Total number of key is 26. This all key is known as alphabet key
(2) 0 To 9 - Total number of key is 10. This all key is known as numeric key
2) FUNCTIONAL KEY
Functional Key - Total number of key is 12. This all key is known as functional key
3) COMMAND KEY
01) UP arrow key – This key is used to move the cursor one line up.
01) UP arrow key – This key is used to move the cursor one line up.
02) DOWN arrow key – This key is used to move the cursor one line down.
03) RIGHT arrow key – This key is used to move the cursor one line right.
04) LEFT arrow key – This key is used to move the cursor one line left.
05) Home Key – This key is used to move the cursor beginning of the line.
06) End Key – This key is used to move the cursor at the end of line.
07) Page Up Key – This key is used to move the cursor one page up.
08) Page Down Key – This key is used to move the cursor one page down.
09) Del/delete– This key is used to delete the single character at the right of the cursor and it is also used to delete the selected matter.
10) Backspace Key - This key is used to delete the single character at the left of the cursor and it is also used to delete the selected matter.
11) Caps lock Key –
if is on then whatever you write that appears in capital letter. In this case if you want to type the character will shift key then the character will appears in small letter.
if is off then whatever you write that appears in small letter. In this case if you want to type the character will shift key then the character will appears in capital letter.
12) Enter Key – This key is used to break the line and complete the command.
13) Shift/Ctrl/Alt – It is a combinational key. Is always work with any other keys.
14) Tab – This key is used to take the appropriate space between the texts.
15) ESC – This key is used to come back one step back or exit from on active file.
16) Window key – This key is used to open start button.
17) PrtSc SysRq – This key is used to copy all screen.
Question. What is scanner?
Question. What is joystick?
Answer. it is an in-put device . it has a stick children like. this device it helps us to play games on computer.
Answer. It is an in-put devices. it is used for copying a picture or documents into a computer.
Question. What is Microphone ?
Answer. It is an input devices. it helps us to listen the proper and clear sound.
Question. What is lightpen?
Answer. It is an input device. It is used to select object and text on screen.
Question. What is monitor?
Answer. It is an out-put devices. It looks like a television. It shows all the activities on screen. It gives output results on screen.
Questin. What is printer?
Answer. It is an output devices. It print the result on papers.
Questin. What is speaker?
Answer. Speakers are output devices. They give better sound. They produce the sound output. By the help og speakers we get a nice sound and do enjoy.
Question. What is C.P.U (Central Processing Unit) ?
Answer. The processing unit of a computer is CPU(Central Processing unit ). CPU is the main part of the computer. The C.P.U Connected to the motherboard which also has several other electronic parts of on it.
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