Introduction to Computer Basics
computer basic parts:
- Input devices
- Central processing unit (CPU)
- Output devices
- External memory
1.Input device
Input devices can be defined as equipment which is used to enter data to the computer. Type of input device that is owned by his example a computer, keyboard, mouse, light-pen, scanner, finger print, etc.
2.Central proocessing unit (cpu)
This section serves as a holder of control of the course of computer activities, and because of that, the CPU is also called the brain of the computer. Apart from that, the CPU also serves as a place to perform various data processing. Data processing work including: notes, view, read, compare, calculate, recall, sort and compare.
In their work, the function of the CPU is divided into:
- Internal Memory / Main Memory, serves to store data and programs.
- ALU (Arithmatic Logical Unit), to implement perbagai kinds of calculations.
- Control Unit, responsible for managing all computer operations
3.Output device
Output devices can be defined as equipment that serves to release the results of processing or data processing from the CPU into a medium that can be read by humans or can be used for data storage process results. Type of output device which is owned by computer printers, monitors, plotters, voiceres, etc.
4.External memory
External memory can be interpreted as a memory which is outside the CPU. Also referred to as Secondary Storage or Storage or Memory Backup Backing which is used to store data and programs. Data and programs stored in external memory, in order to serve the data and programs should be transferred into the internal memory first. Among other types of external memory disk, the hard-disk, tape, CD, flash disk, card etc.
While the program is called with a set of detailed instructions or commands that have been prepared so that the computer can perform its functions in a way that was certain. program is also an interface between humans and computers.
Most basic bit = units in the network "organ" computer, or the inside of the computer. Basically the bit number is representative of the flow of electricity, ie there are only 2 that is only 1 and 0, which can be called 1 = 0 = no electricity and no electricity.
Byte = nah, it's only the most basic units of computers. 1 byte consists of 8 bits. Hence a byte can represent numbers to 255, (if long described as the relation of mathematics ama, short number 15 decimal = 1111 in the number of bits). byte can also represent a computer character.
file = archive that is stored in a medium, which consists of a collection of characters, and documented in the form of digital data by a computer.
= On field in the database is defined as the specific identity of an object. For example a car object, blue field, the field of diesel fuel, etc..
1. Operating System, is software that operates the computer and provides the interface with other software or with the user.
Examples of operating systems: MS DOS, MS Windows (with different generations),
Macintosh, OS / 2, UNIX (various versions), LINUX (with various
distribution), NetWare, etc.
2. Utilities Programs, is a special program that serves as a computer maintenance tools, such as anti-virus, disk partition, disk management, etc.. Examples of product utility programs: Norton Utilities, PartitionMagic, McAfee, etc.
3. Application Program, a program developed to meet specific needs. Example: application of accounting, banking applications, manufacturing applications, etc.
Advantages PC (Personal Computer):
It does not take place, because its shape is not large (such as mainframes)
Can be used as a client or server. And can also standalone
General Purpose, a computer developed for general needs.
Copy: duplicate the original file without having to menghapuss original file is in place (folder) original
Cut: move the original file from the place (folder) initial place (folder) is desired. Place the original file (folder) will be removed early.
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KNOW YOUR KEYBOARD USE BUTTON
Picture uploaded from a personal laptop Here is an explanation keyboard button functions:
Ctrl + A = (All)
used to select either the entire image or text object on a worksheet in MS Word to block everything.
Ctrl + B = (Bold) Create a sentence that is blocked or selected to be bold.
Ctrl + C = (Copy) to copy a word or phrase that also serves to duplicate text or images are selected
Ctrl + D = (Font) Font size Display Form to change and adjust the shape and type of font / letters
Ctrl + E = (Center) Create a sentence that blocked a flat ketenga within a paragraph
Ctrl + F = (Find) Displays the Form to the search field that serves to search for a word or phrase
Ctrl + G = (Go To) Displays the Find and Replace Form go to to get to the desired page
Ctrl + H = (Replace) Displays the Replace Form which is to replace a certain word
Ctrl + I = (italic) letters to be printed sideways Making
Ctrl + J = (Justify) to make the left and right in paragraph
Ctrl + K = (hyperlink) Displays the Insert Hyperlink Form which serves to link his / link text
Ctrl + L = (Left) Making a left-justified text
Ctrl + M = (Indent) Make a left indent into the little bay. serves to shift the First Indent, Hanging Indent and Left Indent simultaneously to the right in a paragraph
Ctrl + N = (New) Create a new page / open a new worksheet in MS Word
Ctrl + O = (Open) Function to open a Word document on a worksheet
Ctrl + P = (Print) Displays the print menu to print the document on a printer
Ctrl + Q = Restore kesemula
Ctrl + R = (Right) Showing a sentence that is blocked into the right flat
Ctrl + S = (Save) to save a script or text in MS Word worksheet
Ctrl + Q = Create a hanging indent
Ctrl + U = (Underline) Create underline the sentence that is blocked.
Ctrl + V = (Paste) Displaying a copied word or phrase
Ctrl + W = Closes the Microsoft Word screen
Ctrl + X = (Cut) Serves to move text or picture followed by the paste command
Ctrl + Y = (Redo / Repeat) To return to the command has been canceled
Ctrl + Z = (Undo) Returns kesemula
Ctrl + 0 = create a step-down
Ctrl + 1 = To adjust the size of a line spasing in paragraphs (single)
Ctrl + 2 = To set the line spasing with a size of 2 to paragraphs (double)
Ctrl + 5 = To set the line spasing with size in paragraphs 1.5
Ctrl + + = Make a sentence on a small script that blocked
{Ctrl + = Zoom text in the block or in the selection with a multiple of one px
Ctrl +} = Decrease text in the block or in the selection with a multiple of one px
Ctrl + F1 = Display a form Getting started
Ctrl + F2 = Display manuscript form in the paper before printing to the printer
Ctrl + F4 = Close a document and returns the previous kedokument if you work with multiple document
Ctrl + F5 = mebuat display Microsoft Word into a medium-size
Ctrl + F6 = Create a screen to be minimized
Ctrl + F9 = Make advance brackets and parentheses
Ctrl + F10 = Create a restore down and maximize
Ctrl + F12 = Display the Open
Ctrl + Alt + 1 = Make a sentence to be printed larger size hurupnya.
Ctrl + Alt + 2 = Make a sentence to be printed sideways and larger size hurupnya.
Ctrl + Alt + 3 = Restore to normal.
Ctrl + Shift + + = Displays a script which was blocked up
Ctrl + Shift + 8 = Creating enter sign
Ctrl + shift + = Zoom out text in the block or in the selection with a multiple of 2 px
Shift + F3 = To change the Sentence case, lowercase, uppercase and Capitalize on the selected text in turn
Alt + R = Displays in print or print preview
Alt + F4 = Exit Application For Ms Word
