Utsav Parikh

Ø   The computer will not work without software. The software also call programs are the instructions that tell the computer what to do and how o do it. The two main categories of software are system software and application software. The system software also called the operating system (OS) actually runs the computer. This software controls all the operations of the computer and its devices. All computers use system software and without the system software, the application software will not work. The most common OS on a PC is the Windows operating system and for the Mac computer, it would be the Mac operating system. Ø   Application software is a program that allows users to a specific task on the computer. There are a number of different types of application software available to do many of the tasks we do daily. Four examples of common application software and what they are used for are: Ø   Word Processing Application: One-word processing program is Micros...

Computer Hardware: Hardware refers to the physical components of a computer. Computer Hardware is any part of the computer that we can touch these parts. These are the primary electronic devices used to build up the computer. Examples of hardware in a computer are the Processor, Memory Devices, Monitor, Printer, Keyboard, Mouse, and the Central Processing Unit. Computer Software: Software is a collection of instructions, procedures, documentation that performs different tasks on a computer system. we can say also Computer Software is a programming code executed on a computer processor. The code can be machine-level code or the code written for an operating system. Examples of software are Ms Word, Excel, PowerPoint, Google Chrome, Photoshop, MySQL, etc.

Ø   Consider how you use a computer in a typical day. For example, you start working on a report, and once you have completed a paragraph, you perform a spell check. You open up a spreadsheet application to do some financial projections to see if you can afford a new car loan. You use a web browser to search online for the kind of car you want to buy. Ø   You may not think about this very consciously, but all of these operations performed by your computer consist of algorithms. An  algorithm  is a well-defined procedure that allows a computer to solve a problem. Another way to describe an algorithm is a sequence of unambiguous instructions. The use of the term 'unambiguous' indicates that there is no room for subjective interpretation. Every time you ask your computer to carry out the same algorithm, it will do it in exactly the same manner with the exact same result. Ø   Consider the earlier examples again. Spell checking uses algorithms. Financial calc...

Computer science emerged as an independent discipline in the early 1960s, although the electronic digital computer that is the object of its study was invented some two decades earlier. The roots of computer science lie primarily in the related fields of mathematics, electrical engineering, physics, and management information systems. In the past sixty years or so, computers have migrated from room-size mega boxes to desktops to laptops to our pockets. But the real history of machine-assisted human computation (“computer” originally referred to the person, not the machine) goes back even further. But the modern computing-machine era began with Alan Turing's conception of the Turing Machine, and three Bell Labs  scientists invention  of the transistor, which  made  modern-style computing possible and landed them the 1956 Nobel Prize in Physics.

Ø   Computer science is the study of computers and computing concepts. It includes both hardware and software, as well as networking and the Internet. Ø   Computer Science is the study of computers and computational systems. Unlike electrical and computer engineers, computer scientists deal mostly with software and software systems; this includes their theory, design, development, and application. Ø   Principal areas of study within Computer Science include artificial intelligence, computer systems and networks, security, database systems, human computer interaction, vision and graphics, numerical analysis, programming languages, software engineering, bioinformatics and theory of computing. Ø   Although knowing how to program is essential to the study of computer science, it is only one element of the field. Computer scientists design and analyze algorithms to solve programs and study the performance of computer hardware and software. The problems ...