A computer is a general-purpose machine that processes data according to a set of instructions temporarily stored internally. The computer and all the equipment attached to it are “hardware.” The instructions that tell the computer what to do are “software.”
At the completion of this course, you will be able to:
1. Define computer
2. Give brief history of computer
3. Classify computer into several categories
4. Describes computer hardware and software
5. State and explain the characteristics of computer
6. Explain the applications of computer and
7. Understand the concept of internet.
Every industry uses computers so naturally computer scientists can work in any. Problems in science, engineering, health care, and so many other areas can be solved by computers. It’s up to the computer scientist to figure out how, and design the software to apply the solution.
Computers are everywhere. We use mobile phones, TVs and cars that include large amounts of software, almost everyone has a computer in their home and virtually everyone under 30 plays computer games. These systems all rely on advanced computer science. Click here to see a more comprehensive note.
Use the next button to progress in your study or use the below button to download the pdf lecture note file into your device. The pdf file is packed with illustrative images.
Note: This course also serves for the following courses:
- Introduction to Computer
- Information and Communication Technology (ICT) I
- Introduction to Computer Studies
Below are the characteristics of computer that have made it so powerful and universally acceptable: SPEED : In general, no human being can compete to solving the complex computation, faster than computer. ACCURACY : Since Computer is programmed, so what ever input we give to it is returned the result with high level of accuracy. STORAGE : Computer […]
MAIN COURSE: Introduction to Computer (Part 1). Computers are classified in different categories: Classification on the basis of data handling or device Analog : An analog computer is a form of computer that uses the continuously-changeable aspects of physical fact such as electrical, mechanical, or hydraulic quantities to model the problem being solved. Any thing […]
Computer hardware refers to the physical devices that make up a computer. Examples include the keyboard, monitor and disk drive. Hardware devices can be classified into four distinct categories: Input devices: For raw data input. Processing devices: To process raw data instructions into information. Output devices: To disseminate data and information. Storage devices: For data and information […]
Software, commonly known as programs or apps, consists of all the instructions that tell the hardware how to perform a task. These instructions come from a software developer in the form that will be accepted by the platform (operating system + CPU) that they are based on. For example, a program that is designed for the Windows […]
A computer network is a set of connected computers. Computers on a network are called nodes. The connection between computers can be done via cabling, most commonly the Ethernet cable, or wirelessly through radio waves. Connected computers can share resources, like access to the Internet, printers, file servers, and others. A network is a multipurpose connection, which allows […]