Tag: Technology

Functions of OS As you know, operating system is responsible for functioning of the computer system. To do that it carries out these three broad categories of activities − Essential functions − Ensures optimum and effective utilization of resources Monitoring functions − Monitors and collects information related to system performance Service functions − Provides services to users Let […]

  Types of OS As computers and computing technologies have evolved over the years, so have their usage across many fields. To meet growing requirements more and more customized software have flooded the market. As every software needs operating system to function, operating systems have also evolved over the years to meet growing demand on […]

  Utility Software Utility Software Application software that assist OS in carrying out certain specialized tasks are called utility software. Let us look some of the most popular utility software. Antivirus A virus can be defined as a malicious program that attaches itself to a host program and makes multiple copies of itself, slowing down, […]

  Number System Number System The technique to represent and work with numbers is called number system. Decimal number system is the most common number system. Other popular number systems include binary number system, octal number system, hexadecimal number system, etc. Decimal Number System Decimal number system is a base 10 number system having 10 digits from 0 to 9. This means […]

  Number System Conversion Number System Conversion As you know decimal, binary, octal and hexadecimal number systems are positional value number systems. To convert binary, octal and hexadecimal to decimal number, we just need to add the product of each digit with its positional value. Here we are going to learn other conversion among these […]

  Hardware and Software Hardware and Software The following table highlights the points that differentiate a hardware from a software. Hardware Software It is the physical component of a computer system. It is the programming language that makes hardware functional. It has the permanent shape and structure, which cannot be modified. It can be modified […]

  Analog and Digital Analog and Digital The following table highlights the basic differences between analog and digital − Analog Digital Its functions on physical analog system. It functions on discrete numbers system. The calculations in this system are primarily converted to equations and later converted into electrical signals. The calculations in this system are […]

  Development in Computer Science chronologically. Development In this chapter, we will discuss the development in Computer Science chronologically. The following table lists down the development − Year Development 1959 Transistors: IBM 7090; IBM 1401 1962 NPN transistor 1963 Mouse; CMOS patented 1964 CDC 6600; IBM Data Cell Drive 1966 Integrated circuits: HP 2116A 1966 […]

Software Concepts As you know, the hardware devices need user instructions to function. A set of instructions that achieve a single outcome are called program or procedure. Many programs functioning together to do a task make a software. (toc) For example, a word-processing software enables the user to create, edit and save documents. A web browser […]