Basics of Computers : Basics of Computers By
Md. Mudassir Rehman
Session topics : Session topics Introduction
Brief History of computers
Categories of Computers
The Hardware Components of a Basic Computer System
Software Basics
Maintaining Your Computer System
Security, Privacy, and Ethics
Computer Applications in Education
Introduction : Introduction Computers play a key role in how individuals work and how they live.
Many individuals use computers at home for educational, entertainment, and business purposes.
In this session, you will learn the basics about computers, the history of computers, the different categories of computers, hardware and software, and maintaining your computer.
computer is an electronic device that executes the instructions in a program. A computer has four functions: : computer is an electronic device that executes the instructions in a program. A computer has four functions:
History of computers : History of computers Nearly 5,000 years ago the abacus emerged in Asia Minor. The abacus may be considered the first computer.
The real beginnings of computers began with an English mathematics professor, Charles Babbage. Charles Babbage designs a “Difference Engine” in 1820 or 1821 with a massive calculator designed to print astronomical tables
Blaise Pascal builds a mechanical calculator in 1642 with an 8-digit capacity.
. In 1933, Howard H. Aiken, a Harvard engineer working with IBM, succeeded in producing an all-electronic calculator.
Another computer development spurred by the war was the Electronic Numerical Integrator and Computer (ENIAC).
In 1981, IBM introduced its personal computer (PC) for use in the home, office and schools.
In1990, Microsoft introduces Windows 3.0.
In 1992: Microsoft introduces Windows for Workgroup.
In 1993: - Microsoft unveils Windows NT.
In 1995, Intel introduces the Pentium Pro chip
From 1995 to 2006, the world saw the rise of the Internet era.
Between 1996 and 2006 software (and data) moved away from people’s computers, and ended up in the “cloud” — that is, online
Over the last three years, people realized that they didn’t need a big powerful computer to do what they always did: a phone could do the job nicely.
Categories of Computers : Categories of Computers Personal computers
Servers
Mainframes
Laptop
PDA’s
Personal computer : Personal computer
Servers : Servers
Minicomputers : Minicomputers
Mainframes : Mainframes
Laptop : Laptop
PDAs : PDAs
Components of a basic computer : Components of a basic computer
Software Basics : Software Basics There are two (2) main types of software
System Software
Application Software
Maintaining Your Computer System : Maintaining Your Computer System Do’s:
Always shut down your computer properly.
Do regular Scandisk to check the hard disk surface for damage.
Defragment the hard drive periodically.
Delete all files and programs you no longer need from your computer.
Use a anti-virus program to prevent a virus on you computer.
Back up data to floppy disks or zip disks to ensure you have a copy.
Maintaining Your Computer System : Maintaining Your Computer System Don't:
Do not eat around the computer.
Do not drink around the computer.
Do not use magnets around a computer.
Maintaining Your Computer System : Maintaining Your Computer System Taking Care of disks
Do:
Delete all files you no longer need from your disk.
Use a anti virus program to scan for viruses on a disk.
Do prevent erasing and recording information on a disk by write-protecting it.
Don't :
Do not use magnets around a disk.
Do not take a disk apart.
Do not remove the disk while it is in use.
Do not store in extremely hot or cold locations.
Do not spill liquids on the disk.
Don not format a disk many times.
Security, Privacy, and Ethics : Security, Privacy, and Ethics Security
Computers can store both public and private data
Password protect the material
Caution when giving out personal information.
Information Privacy
Respect the property, rights, and privacy of others.
Computer Applications in Education : Computer Applications in Education Management
Computers are used in a variety of ways in the educational field. Computers can be used in
school management such as budget, inventory, student records, communications, library
circulation, and library public access catalog.
Educational Research
Computers are used widely in educational research.
Information gathering and processing. The teacher/researcher may examine student
Performance data in new and revealing ways.
Bibliographic citations of studies performed by educators around the world can be acquired and perused from the desktop computer and much more……..
Q & A : Q & A Mail me : mudassir.rehman@gmail.com
Thank you!!! : Thank you!!!