Class 7 Exam  >  Class 7 Notes  >  Computer Science for Class 7  >  Personal Computer and its Use

Personal Computer and its Use | Computer Science for Class 7 PDF Download

Introduction

A personal computer is a computer small and low cost, which is intended for personal use (or for use by a small group of individuals). The term “personal computer” is used to describe desktop computers (desktops). It is often shortened to the acronym PC or microcomputer, whose meaning in English is “personal computer”. It is a very common type of machines.

Personal Computer (acronym PC) consists of a Processor (CPU), central processing unit (CPU) contains the arithmetic, logic, and control circuitry on an single (IC) integrated circuit; two types of memory, main memory, such as RAM, and ROM, magnetic hard disks (HDD) and compact discs and various input/output devices, including a display screen, keyboard and mouse, modem, and printer.

History of Personal Computer

Prior to the Personal Computer (acronym PC), computers were designed for large organization who attached thin terminals for multiple users to a single large computer whose resources were shared among all users. The advent of the personal computer (PC), they break up the tradition of terminals computing. By the late 1980s, technology advances made it feasible to build a small computer that an individual could own and use.
Personal Computer and its Use | Computer Science for Class 7The personal computer began to be wide spread in the 1980s. The first was expensive, work late and had little capacity seen with today’s eyes. History shows that they had their antecedents in particular as calculating machines. It was the development of an effective operating system and a user friendly interface which gave impetus to the development and let them be word processors.
According to the Computer History, the first “personal computer” was the Kenbak-1, launched in 1971. Had256 bytes of memory and was advertised in Scientific American for $750, however, did not have CPU and was, like other systems of this era, designed for educational use.

Uses of Personal Computers

Personal computer (PC) is used for Work with word processing, Internet communications, and sound compositions and also for DTP. The PC is a most valued piece of technology around the world. The data processing capabilities of PC have added to their usage.

Parts of a personal Computer


Computers are made of the following basic components:
(i) Case with hardware inside
Power Supply: The power supply comes with the case, but this component is mentioned separately since there are various types of power supplies. The one you should get depends on the requirements of your system. This will be discussed in more detail later
Motherboard: This is where the core components of your computer reside which are listed below. Also the support cards for video, sound, networking and more are mounted into this board.

  • Microprocessor: This is the brain of your computer. It performs commands and instructions and controls the operation of the computer.
  • Memory: The RAM in your system is mounted on the motherboard. This is memory that must be powered on to retain its contents.
  • Drive controllers: The drive controllers control the interface of your system to your hard drives. The controllers let your hard drives work by controlling their operation. On most systems, they are included on the motherboard, however you may add additional controllers for faster or other types of drives.

Hard disk drive(s): This is where your files are permanently stored on your computer. Also, normally, your operating system is installed here.
CD-ROM drive(s): This is normally a read only drive where files are permanently stored. There are now read/write CD-ROM drives that use special software to allow users to read from and write to these drives.
Floppy drive(s): A floppy is a small disk storage device that today typically has about 1.4 Megabytes of memory capacity.
(ii) Monitor: This device which operates like a TV set lets the user see how the computer is responding to their commands.
(iii) Keyboard: This is where the user enters text commands into the computer.
(iii) Mouse: A point and click interface for entering commands which works well in graphical environments.

The document Personal Computer and its Use | Computer Science for Class 7 is a part of the Class 7 Course Computer Science for Class 7.
All you need of Class 7 at this link: Class 7
26 docs|14 tests

Top Courses for Class 7

FAQs on Personal Computer and its Use - Computer Science for Class 7

1. What is a personal computer (PC) and how is it used?
Ans. A personal computer (PC) is a computer designed for individual use. It is a small, relatively inexpensive computer that is intended for personal use at a single location. PCs are used for a wide range of activities such as word processing, internet browsing, gaming, watching videos, and much more.
2. What are the components of a personal computer?
Ans. A personal computer consists of several key components. These include a central processing unit (CPU), which is the brain of the computer, a motherboard, which connects all the components together, memory (RAM) for temporary storage, a storage device such as a hard drive or solid-state drive (SSD) for long-term storage, input devices like a keyboard and mouse, output devices like a monitor or printer, and various other peripherals like speakers or a webcam.
3. Can a personal computer be used for professional work?
Ans. Yes, a personal computer can be used for professional work. With the right software and hardware, a PC can handle a variety of professional tasks such as graphic design, video editing, programming, data analysis, and more. Many professionals rely on personal computers for their daily work due to their versatility and efficiency.
4. What are the advantages of using a personal computer?
Ans. There are several advantages of using a personal computer. Firstly, it provides easy access to information and the internet, making research and communication more convenient. Secondly, PCs offer a wide range of software applications for various purposes, allowing users to perform tasks efficiently. Additionally, personal computers are relatively affordable compared to other computing devices. Lastly, PCs can be customized and upgraded according to individual needs and preferences.
5. Can a personal computer be used for entertainment purposes?
Ans. Absolutely! Personal computers are widely used for entertainment purposes. They can be used for gaming, watching movies and videos, listening to music, and even connecting to streaming platforms for online content. PCs offer high-quality graphics, sound systems, and a wide range of entertainment software, making them a popular choice for entertainment activities.
26 docs|14 tests
Download as PDF
Explore Courses for Class 7 exam

Top Courses for Class 7

Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

Important questions

,

video lectures

,

past year papers

,

ppt

,

Exam

,

Objective type Questions

,

shortcuts and tricks

,

Personal Computer and its Use | Computer Science for Class 7

,

study material

,

Free

,

MCQs

,

Sample Paper

,

Previous Year Questions with Solutions

,

Viva Questions

,

mock tests for examination

,

Personal Computer and its Use | Computer Science for Class 7

,

Summary

,

pdf

,

practice quizzes

,

Semester Notes

,

Extra Questions

,

Personal Computer and its Use | Computer Science for Class 7

;