What is a Computer?
A computer is an electronic device which is used to perform particular / various tasks using software as instructions and hardware as machine that runs software.
Important Computer Hardware:
What is CPU? CPU (Central Processing Unit) is assembled hardware parts like Hard Drive, Motherboard, CD Drive, Floppy Drive that are used to run a computers.
What is Hard Disk / Hard Drive? Hard disk or hard drive is a magnetic data storage device. All computer’s programs, files and data is stored in this device.
What is a Motherboard? Motherboard is most important part of a computer or any other electronic device which runs everything on computer / electronic device. Everything that
Parts of a Mother Board:
- System clock
- Graphic Card
- Sound Card
- RAM chips
- USD connection
- Power supply (SMPS)
What are some Input and Connection Hardware?
Mouse: A Mouse is an input device which usually consists of 2 buttons and a scroll wheel.
Key Board: A Keyboard is typing hardware which is used to type information in Computer.
Cable: A cable is a wire which is used to connect various computer parts and power. Most common cables are VGA cables and power cables.
What is a Port? A port is a connecter which connects computer with external device like USB drive, printer etc.
What is a Printer? A Printer is external device which is connects to a computer through port. It is used to print computer data on a paper. There are many types of printers like matrix, laser, thermal, inkjet, and plotter. Xerox invented Laser printer (which is also most common printer) in 1969.
What is Operating System? An Operating System is a special set of critical software that controls every task on computer. Most common Operating System are Microsoft Windows, Apple Mac, Linux, Unix, Ubuntu.
Related: Popular Computer Education Courses
What is software? A Software is a program which is developed to perform special tasks / functions.
What is the difference between bit and byte? Bit or Binary Digit is smallest piece of information on a computer. When bits are grouped together to form larger information they are byte.
- 8 bits = 1 byte
- 1024 bytes = 1 Kilobyte (KB)
- 1024 Kilobytes = 1 Megabyte (MB)
- 1024 Megabyte = 1 Gigabyte (GB)
- 1024 Gigabyte = 1 Terabyte (TB)
What is Internet? Internet is worldwide network of Computers which give convenient and fast access to world’s information and enable to connect with each other at low cost.
What is E-commerce? Buying and selling products over the internet is E-Commerce.
What is a Virus? A program which is developed to corrupt / destroy data in your computer. Some virus can also travel from one computer to another computers.
What is a Trojan Horse? A Trojan horse is a computer virus which attaches itself to another computer programme.
What is Phishing? Phishing is attempt to obtain confidential information from you by falsifying claims and identity (like Lottery Emails).