Skip to main content

Popular posts from this blog

Explain different types of storage devices

Topic: Explain different types of storage devices in Computer systems Storage Devices Storage devices are used to store data and instructions permanently. Storage devices are also called secondary storage devices / backing storage devices / external storage devices or auxiliary storage devices. Examples of storage devices include Hard Disk, CD and DVD etc. Why Secondary Storage Devices are Used? Secondary storage devices are used because: Primary memory(RAM) is volatile and temporary. When computer is switched off, all data in ram is erased. Storage devices can store large amounts of data and instructions permanently whereas Primary memory has less capacity of storing data. Types Of Storage Devices There are three main types of storage devices:  Magnetic Tape   Magnetic Disk   Optical Disk   Flash Memory storage devices 1. Magnetic Tape Magnetic tape is the oldest storage device. It is made of plastic coated with m...
3 comments
Read more

Explain Advantages Of Networks

Define Network with examples. Give importance of Computer Network. COMPUTER NETWORK We can define a Computer Network as a set of two or more connected computers to share information and other resources (data, files, printers, hard disk, modem, CD-Rom Drive, CD-Writer, DVD-Rom Drive, DVD-Writer etc.). The computers in a network can share: Data, Information, Files Software Hardware (printers, disk, modems)etc. Advantages of Computer Networks EXAMPLES OF COMPUTER NETWORK Computer network can be used in an office. Different people in the office can share common information and printer. Net Cafes use Computer Network for internet sharing. Net Cafe Owners can save money by sharing one DSL Routers / Modem and a single Internet Connection. Computer Network is used in Computer Laboratories of Schools, Colleges and other educational institutes. Internet, is also an example of a computer network. Internet is a network of millions of computers connected through phone lin...
Post a Comment
Read more

Explain Computer Software With Examples

Software Software is a set of instructions that tell a computer what to do. Software is the set of instructions given to computer to perform a task or to control operations of computer. Software cannot be touched. There are two main types of software - Application software and System software . The hardware cannot perform any task without software. Software is installed on hard disk . When we use any software it is loaded into RAM from hard disk. What is Software? Examples of software are: MS Word MS EXCEL MS POWER POINT,  WinZip Norton Anti Virus MSN Messenger  and MS Windows etc.             Microsoft WORD: MS Word This software is used to prepare letters, applications, office documents and all types of documents and books etc. Microsoft Excel: MS Excel It is used calculations and preparing electronic worksheets for example creating Employees Pay Sheet or Students Result Sheet.   ...
Post a Comment
Read more