Microsoft Office

Tutorials and guide of all courses of Microsoft office suite Including Word, Excel, Powerpoint, Access etc.

Sunday, 27 July 2014

Motherboard/ PCB/ Main Board

A motherboard (sometimes alternatively known as the mainboard, system board, planar board or logic board, or colloquially, a mobo) is the main printed circuit board (PCB) found in computers and other expandable systems. It holds many of the crucial electronic components of the system, such as the central processing unit (CPU) and memory, and provides connectors for other peripherals. Unlike a backplane, a motherboard contains significant sub-systems...

Measurement of Data

Data Measurement Chart Data Measurement Size Bit Single Binary Digit (1 or 0) Bytes 8 bits Kilobyte (KB) 1,024 Bytes Megabyte (MB) 1,024 Kilobytes Gigabyte (GB) 1,024 Megabytes Terabyte (TB) 1,024 Gigabytes Petabyte (PB) 1,024 Terabytes Exabyte (EB) 1,024 Petabytes ...

Saturday, 26 July 2014

ENIAC (Electronic Numerical Integrator And Computer)

ENIAC (Electronic Numerical Integrator And Computer) was the first electronic general-purpose computer. It was Turing-complete, digital, and capable of being reprogrammed to solve "a large class of numerical problems". ENIAC was initially designed to calculate artillery firing tables for the United States Army's Ballistic Research Laboratory. When ENIAC was announced in 1946 it was heralded in the press as a "Giant Brain". It had a speed of one...

Computer Program

A computer program, or just a program, is a sequence of instructions, written to perform a specified task with a computer. A computer requires programs to function, typically executing the program's instructions in a central processor. The program has an executable form that the computer can use directly to execute the instructions. The same program in its human-readable source code form, from which executable programs are derived (e.g., compiled),...

What is Computer?

A computer is a general purpose device that can be programmed to carry out a set of arithmetic or logical operations automatically. Since a sequence of operations can be readily changed, the computer can solve more than one kind of problem. Conventionally, a computer consists of at least one processing element, typically a central processing unit (CPU), and some form of memory. The processing element carries out arithmetic and logic operations,...

Central Processing Unit (CPU)

A central processing unit (CPU) (formerly also referred to as a central processor unit) is the hardware within a computer that carries out the instructions of a computer program by performing the basic arithmetical, logical, and input/output operations of the system. The term has been in use in the computer industry at least since the early 1960s. The form, design, and implementation of CPUs have changed over the course of their history, but their...

Solid State Drive (SSD)

A solid-state drive (SSD) (also known as a solid-state disk or electronic disk, though it contains no actual disk) is a data storage device using integrated circuit assemblies as memory to store data persistently. SSD technology uses electronic interfaces compatible with traditional block input/output (I/O) hard disk drives, thus permitting simple replacement in common applications. Also, new I/O interfaces like SATA Express are created to keep...

Small Computer System Interface (SCSI)

Small Computer System Interface (SCSI) is a set of standards for physically connecting and transferring data between computers and peripheral devices. The SCSI standards define commands, protocols and electrical and optical interfaces. SCSI is most commonly used for hard disks and tape drives, but it can connect a wide range of other devices, including scanners and CD drives, although not all controllers can handle all devices. The SCSI standard...

Serial ATA (SATA)

Serial ATA (SATA) is a computer bus interface that connects host bus adapters to mass storage devices such as hard disk drives and o ptical drives. Serial ATA replaces the older AT Attachment standard (later referred to as Parallel ATA or PATA), offering several advantages over the older interface: reduced cable size and cost (seven conductors instead of 40 or 80), native hot swapping, faster data transfer through higher signalling rates, and...

Parallel ATA (PATA)

Parallel ATA (PATA) is an IDE standard for connecting storage devices like hard drives and optical drives to the motherboard. PATA generally refers to the types of cables and connections that follow this standard. It's important to note that the term Parallel ATA used to simply be called ATA. ATA was retroactively renamed to Parallel ATA when the newer Serial ATA (SATA) standard came into being. PATA cables are long, flat cables with 40-pin...

Friday, 25 July 2014

Computer Hard Disk Types

Many people aren't aware that there are many types of hard drives used in computers. This article centers on the technical aspects of different hard drive types... The different types of hardware manufactured today depend on the type of computers they are used in. The main factors that define a hard drive's physical and technical characteristics are the space available in the PC, speed needed for transferring data, and the amount of storage...

Thursday, 24 July 2014

What is Integrated circuit (IC)

An integrated circuit or monolithic integrated circuit (also referred to as an IC, a chip, or a microchip) is a set of electronic circuits on one small plate ("chip") of semiconductor material, normally silicon. This can be made much smaller than a discrete circuit made from independent components. ICs can be made very compact, having up to several billion transistors and other electronic components in an area the size of a fingernail. The width...

How to Save Something in Facebook

How do I save something to view it later? To save something you see on Facebook (links, places, music, books, movies and TV shows): Find the thing you want to save: From your News Feed: click Save in the bottom right of a post or click  and then select Save From a Page: click  and then select Save How do I view and share the things I've saved? When you save things on Facebook, they'll...

Wednesday, 23 July 2014

Microsoft PowerPoint 2007 (Introduction)

PowerPoint is currently the most common software used for making visual aids for presentations. It has been redesigned for the 2007 release with a much more user-friendly and intuitive layout than its predecessors. This tutorial will teach you the basic tools for making a PowerPoint presentation and familiarize you with the new PowerPoint 2007 workspace. Basic Tips • It is best to outline your entire presentation before working too much...

Tuesday, 22 July 2014

How to Make a USB Bootable

Making a USB Drive to Install Any PC Operating System. Follow the following steps: 1. Open the Command Prompt. You will need to run Command Prompt as an Administrator. Right-click on it and select Run as Administrator. You may need to enter the Administrator password. This method will create a USB drive that is bootable. You can then copy the contents of an operating installation disc onto the drive to create a portable installation drive. This...

Monday, 21 July 2014

ALT Codes - Alt Codes for Punctuation

List of Alt Codes used for Punctuation, Editing, Parenthesis, Quotation etc. ALT Codes for Punctuation Interrogetary and Exclamatory Alt CodeSymbolDescription Alt 33!Exclamation Mark Alt 19‼Double Exclamation Alt 173¡Inverted exclamation mark Alt 63?Question Mark Alt 168¿inverted question mark Alt Codes for Parenthesis Alt CodeSymbolDescription Alt 40(Open Bracket Alt 41)Close Bracked Alt 91[Open Square Bracket Alt 93]Close Square Bracket Alt 123{Open curley bracket Alt 125}Close curley bracket Alt Codes for Editing Alt CodeSymbolDescription Alt...

ALT Codes - Miscellaneous Alt Codes

List of Miscellaneous Alt Codes Miscelaneous Alt Codes Alt CodeSymbolDescription Alt 35#Hash / Pound Key Alt 65 - 90A to ZCapital Letters A to Z Alt 97 - 122a to zLowercase Letters a to z Alt 249∙ Alt 250· Alt 170¬ If you need help using alt codes find and note down the alt code you need then visit instructions for using alt codes. Alt Codes Table ...

ALT Codes - Computer Programming / Coding

List of Alt Codes for entering symbols used in computer programming / coding ALT Codes for Programming Alt CodeSymbolDescription Alt 0166¦Unix Pipeline Alt 40(Open Bracket Alt 41)Close Bracked Alt 94^To the power of Alt 60<Less Than Alt 62>Greater Than Alt 61=Equals Alt 42*Multiply Alt 47/Divide or Slash Alt 92\Back Slash Alt 35#Hash Alt 40(Open Bracket Alt 41)Close Bracked Alt 64@At Symbol Alt 91[Open Square Bracket Alt 93]Close Square Bracket Alt 123{Open curley bracket Alt 125}Close curley bracket Alt 42*Wildcard and Multiply If...