New Jiwan's Excel With Computer Chapter- 1 Computer Fundamental

  Chapter- 1 

Computer Fundamental               

Only answer

                    Assessments

4. Answer the following questions. 

Very short answer

a. A computer is an electronic device that accepts data as input, processes it according to instructions stored in its memory, and outputs the result as information.

b. Computers are used in a variety of areas, including business, education, healthcare, and entertainment.

c. The beginning era of the modern computer is considered to be the year 1946, when the first electronic computer, the ENIAC, was developed.

d. An example of a fifth generation computer is the IBM Watson's, which is a cognitive computing system that can understand and respond to natural language.

e. Two storage devices are hard drives and solid-state drives.

f. Two output devices are monitors and printers.

g. The brain of the computer is the central processing unit (CPU)

Long answer questions. 

a. The information processing cycle is a series of steps that a computer follows to process information. The steps are input, processing, output, and storage.

b. The first generation of computers used vacuum tubes as their main components. These computers were very large and expensive, and they were not very reliable. The second generation of computers used transistors instead of vacuum tubes. Transistors are smaller and more reliable than vacuum tubes, and they made computers smaller and cheaper. The third generation of computers used integrated circuits. Integrated circuits are made up of thousands of transistors on a single chip, and they made computers even smaller and faster. The fourth generation of computers used microprocessors. Microprocessors are small, powerful computers that are used in many different devices, such as computers, cell phones, and cars. The fifth generation of computers is still in development, and it is expected to use artificial intelligence and quantum computing.

c. The evolution of the computer has been a long and winding road. The first computers were massive machines that took up entire rooms. They were used for complex calculations and scientific research. Over time, computers have become smaller, faster, and more powerful. They are now used for a variety of tasks, from word processing to playing games.

d. The advantages of using computers include:

* They are fast and efficient.

* They can store large amounts of data.

* They can be used for a variety of tasks.

* They can be connected to the internet, which allows them to access a wealth of information.

The disadvantages of using computers include:

* They can be expensive.

* They can be addictive.

* They can be used for harmful purposes, such as cyberbullying and online predators.

e. The rules that should be used while using the computer in academics include:

* Use the computer for academic purposes only.

* Do not use the computer to cheat on exams or assignments.

* Do not use the computer to access inappropriate websites.

* Do not use the computer to bully or harass others.

* Do not use the computer to plagiarize other people's work.

f. The input devices of a computer are the devices that allow the user to input data into the computer. The most common input devices are the keyboard, mouse, and scanner.

g. The following are the definitions of the terms:

* Information: Information is data that has been processed in a way that makes it meaningful.

* Data: Data is raw facts or figures that have not been processed.

* Output devices: Output devices are the devices that allow the computer to output data. The most common output devices are the monitor, printer, and speaker.

* Motherboard: The motherboard is the main circuit board in a computer. It contains the CPU, memory, and other important components