2/28/16

Difference Between RAM and ROM












Today I will teach you difference between Ram and Rom memory in computer. Before starting the tutorial we must have the knowledge of what is a memory in computer. I hope that will you really enjoy this.

An operating system memory can be viewed as a list of cell into which number can be placed or read. An operating system memory consist many millions of bytes, and it easier to measure it given a unit, it is called Kilobytes (K). One kilobyte equal to 1024 bytes and one gigabyte equal to 1024 megabyte. Computer main memory comes in two principal varieties Ram (Random Access Memory) and Rom (Read only Memory).
.

  Random Access Memory (RAM)
Read Only Memory (ROM)
·              Ram is erased when the power to the 
         computer turned off.
          Rom is typically used to store the computer’s initial startup instruction.
·               Ram is a faster work process.
          Rom is a slow work process.
·                It is only used to temporary information
          It is used to store permanent information and it cannot be deleted information.
·               Ram used electricity to perform to flow to          preserving information.
           Rom is not used electricity to perform to flow to preserving information.
·              Ram price high.
         Rom price low.
·              Ram is higher physical size than Rom.
          Rom is lower physical size than Ram.
·              Ram categorized in 2 types:
         SRAM (Statistic RAM) 
         DRAM (Dynamic RAM)

               
         Rom categorized in 3 types:
     PROM(Programmable read only Memory),
     EEPROM( Electrical Erasable Programmable Read Only Memory),
     EPROM(Erasable Programmable Read Only Memory).


·            Ram is a chip which is inserted
        in motherboard.  Its shape is like a rectangle form.
          Rom is an optical driver which is made of magnetic tape.

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In this article you have studied about difference between Ram and Rom memory in computer. If you find any mistake or missing than let me know through your comment. And if you like the tutorial don’t forget like us on Facebook and also follow me on twitter.

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2/27/16

Control Unit



Today we will discuss about control unit in computer. Control unit is a one of the most important component in computer. You can also call a memory of computer. It read and interpreted instruction or detailed in the program one by one. It is decodes each instruction or detailed and turns it into a series of control signals that control all part of that our operating system. Control system in advanced operating system may change the order of some instruction so as to improve performance. A key component is common to all central processing unit is the program counter, a special memory cell that keep track which location in memory the next detailed is to be read form.










Function of control unit is:-
Control unit never store or process data.
Control unit coordinate or manage all the unit of the operating system.
Increment the program counter so its point to the next instruction.
Control unit provide the necessary data to an ALU.
If the instruction required an ALU or specialized hardware to complete, instructed the
        hardware to perform the requested the requested operation.
Control unit decode the numerical code for the detailed into a set of command signal of
         each of the other system.

Image internet source- Google images
In this tutorial you have learn about control unit in computer. If you like the tutorial doesn’t forget me like on Facebook and also follow me on twitter. And if you find any missing then let me through your comment.

People also read: Introduction to computer.
People also read: Introduction to Ms excel.

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2/26/16

Introduction to Computer


In this article we will discuss about the introduction to computer. Before starting this tutorial we must have the knowledge of what are computer and how many types of computer. I hope that will you really enjoy this.

A computer is an electronic machine which manipulates your data according to a list of instruction. Depending on the logic it uses, a computer is generally thought of two types:

Analog Computer













It is a form of computer that uses electrical, mechanical to model the problem being solved. More generally it uses one kind of physical quantity to represent the behavior of another physical operating system and mathematical function. Modeling a real physical system in a computer is called simulation.

Digital Computer


Digital computers are high-speed, programmable, electronic device that perform mathematical calculation, compare values and store the result.

Personal Computer



It is a computer whose original size, capabilities and sales price make it useful for individuals. It can be categorized by size and portability:
Desktop Computer
Laptop or notebooks
Portable computers
Tablet computers
Wearable computers
Personal digital assistants

Desktop Computer

It is a computer made for use on a desk in an office or home and is distinguished from portable computers such as laptops. Desktop computers are also known as microcomputers. There are four types of desktop computers: Home computers or personal computer; workstations, Internet servers, and special communications computers.

Desktops are currently the most affordable computers and ubiquitous in business, school, editing, and Internet access. Desktop computers come in a variety of case styles ranging from large vertical towers to small form factor models that can be tucked behind an LCD monitor.


How Computer works?

Generally computer has four main sections the arithmetic logic unit (ALU), the control unit the memory, and the input devices and output devices. These parts are interconnected by busses, often made of groups of wires. The control unit, registers, ALU, and basic I/O are collectively known as CPU (central processing unit).

Image Internet source- Google Images

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2/23/16

What is Excel Filter And How its Work?


Before starting know about excel advance filter we must have the knowledge of what is filter in excel? In this tutorial I will teach you how to use excel filter? I hope that will you really enjoy this.

What is filter in MS Excel?
As we know that filter is a process that removes from a single some unwanted component or feature as you want. For example, first create a sheet of data then select the heading of the data.
And go to data tab, in sort & filter group select the data and click on it. When you click on data tab you see you tab header filtering controls are added to the table header automatically.
Above image shows that filtering added to the table header automatically.

Where is advance filter option in excel 2003, 2007, 2010?

In Excel 2003 when you open your excel spreadsheet select the data menu tab top of your excel spreadsheet click on it then go to filter option and click on it. When you click you see advanced filter option and click on it and use this option.











In excel 2007, when you open your excel spreadsheet select the data menu tab bottom top of your screen click on it, then go to sort & filter you see advanced option click on it and use this option.






In excel 2010 when you open your excel spreadsheet select the data menu tab bottom top of your screen click on it, then go to sort & filter you see advanced option click on it and use this option.

How to setup your database?

 Here I give some instruction how to setup your database?

1) First row has heading.
2) Each column has a unique heading.
3) Duplicate heading will cause problem when you use advance filter.
4) There are no blanks cells within your data base. If your cell is blank you can’t use advance filter option.

How to use filter option in excel?


Select the range of the data and go to data tab and press filter option you see filtering added to the table header automatically.  Select the any header of the cell and click on it.

Through the video you can better understand to given all description about excel filter in excel.
In this article you have studied about what is excel filter and how excel filter work. If you like this tutorial doesn’t forget to like us on Facebook and also follow me on twitter. And if you find anything missing than let me know through your commenting.

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2/16/16

How to Use Macro in Excel?


In this article we will discuss about how to use macro in excel? Before starting the tutorial we must have the knowledge of how to enable or turn on the developer tab in excel 2010? I hope that will you enjoy this.

How to enable or turn on the developer tab in excel 2010?
First open Microsoft excel and go to File tab and click on it then go to option menu, when you click option menu you see Excel Option window front on your screen.
In Excel option window go to customize Ribbon and you see customize the ribbon drop down list right on the window, click the drop down list and select the Main tab, when you do the step you see some option with check box. Mark the Developer check box and click OK.Below images show that how to turn on developer tab?


How many ways to record macro in excel 2010?

There are 3 ways to record macro in excel
1) Enable your developer tab.

2) Go to view tab, in this tab you see macro option right on the corner click on it and record your macros.

3) When you click any blank cell you see below of left corner, you see ready displayed on screen click on right mouse button and check the box of macros recording. Below images shows that the following description as above given.


Here we will discuss about 3 different ways to record your macros.

How to record a macro in excel 2010?

If you have a simple set of an action that you want to show several times, then you make a record action and produced excel macros. Below video shows that how to turn on developer tab, you also learn how many ways to record your macro and create a simple macro in excel 2010?
Today we have discussed about how to use macro in excel? If you have found any mistake or have any doubt related to above How to use macro in excel tutorial then comment below.

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2/10/16

Sum formula, Sumif function and Average Formula in MS Excel

In this tutorial you have learn about two most important basic formulas. Today we will discuss on SUM, SUMIF and AVERAGE formula in Microsoft excel. I hope that will you really enjoy this.

How to use Microsoft excel as a mini calculator?

In Microsoft excel you uses excel as a mini calculator suppose you want add some numerical number. For example, if you type the formula =94+286 in a cell, Excel display 360 as a result. You want to subtract some numerical number. For example, if you type the formula =286-96 in a cell, Excel display 190 as a result.

Sum formula- Sum formula is a basic formula in MS excel. When you add number you want to use sum formula. Below image shows that how to use sum formula in MS excel?

 Above image shows that first click the cell where you want to select the range of the data then put formula =sum (C10:G10). Always remember when you put any formula first put equal (= ) sign the put your formula.

Sumif Formula- when you want to add all numbers in the range of the one cell based criteria. Below video shows how to use sum formula in various types?

Average formula- when you want to average all number in the range of the data. Below image shows that how to use average formula in ms excel?

 In this tutorial you have learn about how to use sum formula in various types and also learn average formula in excel, If you found any mistake or have any doubt related to above SUM, SUMIF and AVERAGE formula in Microsoft excel tutorial then comment below.

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2/1/16

Basic Consolidate in Excel by Using Category And Label

In this last you will learn about basic consolidate in excel (by position). In this tutorial you will learn about Basic consolidate in excel by using category and label. Before starting this tutorial we must have the knowledge of consolidate. Click here to get the knowledge of consolidate in excel. I hope that will you really enjoy this.

How to use consolidate in excel by using category and label?
It is the simple process to consolidate our data by using category and label. For example, First create a three sheet and create your data for example see images. Suppose you create Electronic sales data on January, February, March 2016 and you want to consolidate your data of master worksheet.

Above Image shows that 3 different sheet I will show how to consolidate the data in our master worksheet.
First create a new sheet. On this sheet go to data tab, in data tools option you see consolidate option click on it. Go to first sheet and select the range of the data and click on add Button then go to second sheet and select the range of the data and click on add button, Go to third sheet, select the range of the data and click on add button. When you add both sheet which you want to show your data in our master worksheet press ok. Below image shows that what happen when you both sheet are added.

Through this video you can better understand to given all description about this tutorial.

In this article you have studied about  Basic consolidate in excel by using category and label. If you like this tutorial doesn’t forget to like us on Facebook and also follow me on twitter. And if you find anything missing than let me know through your commenting.

People also read: Consolidate in excel.
People also read : Conditional formating based on another cell.

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