Information Technology

February 5, 2010

Prep Quiz 14: Basic General Knowledge For All Examinations

1.Since the last few decades, as our economy developed, the share of the tertiary sector of economy in the GDP has _________?(A)Increased(B)Decreased(C)Decreased then increased(D)Increased then decreased(E)remained unaltered 2.What is

January 5, 2010

Quiz 214 : Basic General Knowledge

1.During whose reign, the Maurya Empire stretched from Bengal and Assam in the East, to Afghanistan and Balochistan in the West, to Kashmir and Nepal in the North and

November 15, 2011

Beginning of Computing

Introduction We all know that a computer is an electric device and a programmable machine. The English mathematician, philosopher, inventor and mechanical engineer Charles Babbage (1791-1871) is known for

November 15, 2011

Integrated Circuits

A monolithic integrated circuit (IC) also known as microchip, silicon chip, computer chip or chip is basicaly a miniaturized electronic circuit that consists of mainly of semiconductor devices, as

November 15, 2011


The first integrated circuits contained only a few transistors and so were called “Small-Scale Integration (SSI). They used circuits containing transistors numbering in the tens. They were very crucial in

November 15, 2011

Parts of a Computer

All general-purpose computers has the following main hardware components. Memory: Memory enables the computers to store, at least temporarily, data and programs. Mass storage device: Allows a computer to

November 15, 2011

Central Processing Unit or CPU

A general purpose computer has four main sections: the arithmetic and logic unit (ALU), the control unit, the memory, and the input and output devices (collectively termed I/O). These

November 15, 2011


The motherboard is the main circuit board of the computer and as such acts as the “circulation system” of the computer. All signals used by the computer are processed

November 15, 2011

Computer Port

A hardware computer port is a physical interface between a computer and other computers or devices. A software computer port is a virtual data connection between computer programs possibly

November 15, 2011

Basic Input/Output System (BIOS)

BIOS refers to basic input/output system (BIOS). BIOS software is built into the PC, and is the first code run by a PC when powered on, and that is

November 15, 2011

Complementary Metal Oxide Semiconductor (CMOS)

CMOS is an abbreviation for Complementary Metal Oxide Semiconductor. CMOS technology is used in microprocessors, microcontrollers, static RAM, and other digital logic circuits. CMOS technology is also used for

November 15, 2011

Understanding Bits and Bytes

A bit refers to binary digit. It refers to a digit in the binary numeral system, which consists of base 2 digits (i.e. there are only 2 possible values;