System Concept : Data And Clock Speed Measurement

Data MeasurementKILOBYTE (KB)In mathematics, 1 KB = 1000 bytes.In computer, 1 KB = 1024 bytes or can be said as: 1 KB = 210 bytes This is how we get the calculation for 1024 bytes. MEGABYTE (MB)1 MB = 1 048 576 bytes or it can be said as: 1 MB = 220 bytes GIGABYTE (GB)1 GB = 1 073 741 824 bytes or it can be said as: 1 GB = 230 bytes TERABYTE (TB)1 TB = 1 099 511 627 776 bytes or it can be said as: 1 TB = 240 bytes Clock Speed Measurement HERTZ AND SECONDSThe clock speed unit is measured in hertz. A hertz is one cycle per second. MEGAHERTZ...

Read More

System Concept : Data Representation

BINARY DIGIT Computers recognize only two discrete states: on and off. These states can be represented by two digits, 0 and 1. Each 0 or 1 is called a bit in the binary system. Bit is the  smallest unit of data a computer can process. Bit is a short for binary digit. The binary system has a base of 2 with the two digits (0 and 1). Combinations of 0s and 1s represent larger numbers. BITA bit is the smallest unit of data that the computer can...

Read More

System Concept : Information Processing Cycle

COMPUTER HARDWARE BLOCK DIAGRAM An Input device feed raw data to the processor. A processor processes raw data and turns it into useful information. A storage device keeps or stores both process and unprocess data for later usage.  An output device shows or display the processed data. INPUT DEVICES When data is entered into the computer system, it is called an input. Input comes in various forms; texts, graphics, audio and video. Input devices...

Read More

System Concept : Overview Of Computer System

Computer System A computer system is defined as combination of components designed to process data and store files. A computer system consists of four major hardware components; input devices, output devices, processor and storage devices.A computer system requires hardware, software and a user to fully function.Software refers to set of instructions that tell the hardware what to do. Software can also have various other functions such as performing...

Read More

Software Requirement : Cliect Software

FUNCTIONS OF WEB BROWSERA web browser is a software application that enables a user to display and interact with HTML documents hosted by web servers or held in a file system. Text and images on a web page can contain hyperlinks to other web pages at the same or to different websites. Web browser allow a user to quickly and easily access information provided on many web pages at many websites by surfing these links. Web browsers available for personal...

Read More

Sofware Requirement : Server Software

Software such as Windows Server 2003, Windows NT and Red Hat Linux are some of the examples of server software. All of these software fall under the Network Operating System. DEFINITION OF NETWORK OPERATING SYSTEMSAn operating system is the program that first loads when a computer boots and manages any other software or hardware on the computer. A Network Operating System or known as NOS, has additional functionality that allows it to connect computers...

Read More

Hardware Requirements : Transmission Medium

Transmission media can be divided into two broad categories.  Physical transmission media Wireless transmission media  The twisted-pair cable, coaxial cable and fibre optic cable are examples of physical transmission media.Wireless transmission medium or unguided medium is through air. PHYSICAL TRANSMISSION MEDIUM In physical transmission medium, waves are guided along a solid transmission medium. Wireless transmission medium waves are...

Read More

Hardware Requirements : Devices

Communication devices are hardware components that enable a computer to send or receive data, instructions and information to and from one or more computers. Examples of communication devices are:Network Interface Card (NIC) Wireless Network Interface Card (WNIC) internal and external modem hub or switch router wireless access point NETWORK INTERFACE CARD A network card, sometimes pronounced as NICK, is an adapter card or PC card  that enables...

Read More