Computer hardware consists of the physical components that make a computer go. ... That's the heart of the computer. It's a chip that takes instructions from programs (software), makes calculations and spits out the results. System hardware is a general term for various physical components of a computer system. It includes all the parts inside the computer case such as the CPU, hard disk drive, graphic cards, sound cards, RAM, power supply unit, motherboard, etc. Hardware refers to the physical elements of a computer. This is also sometime called the machinery or the equipment of the computer. Examples of hardware in a computer are the keyboard, the monitor, the mouse and the central processing unit.

A computer printer is a piece of hardware for a computer. It allows a user to print items on paper, such as letters and pictures. Mostly a printer prints under the control of a computer. Many can also work as a copying machine or with a digital camera to print directly without using a computer.

Firstly, ICT use refers to the use of Information and Communication Technology. In simple words, take example of a computer or any other digital devices used for the purpose of communications.

The precautions may be:-

- Patch whilst using a machine, this means that it wont be vulnerable to malfunctions.

-One should install protective software's which can help to reduce any damage to the data present in the computer, from malfunction, data erasing, heatup's etc.

- create backup of data on a regular basis. One must always have a backup storage whether on icloud or somewhere else, to help regain information in case any data may be lost.

Mail Merge is a useful tool that allows you to produce multiple letters, labels, envelopes by linking a main (common) document to a set of data or data source. The main document is linked to the data source by common fields of data, called merge fields.

A hard disk is a higher capacity medium, with up to hundreds of gigabytes. They are usually non-removable, but removable hard disks are becoming more common. They can be both read from and written to, and are the standard medium for storage on computer systems

Taking these steps to conserve water can make a big difference.

1. Only wash full loads of laundry.
2. Fill a bucket while showering and use it to water plants.
3. Run the dishwasher only when full.
4. Turn off the faucet while brushing your teeth.
5. Create a lawn watering schedule using a watering calculator.
6. Harvest rainwater.

• Perception is the process of selecting, organizing, and interpreting information. This process affects our communication because we respond to stimuli differently, whether they are objects or persons, based on how we perceive them. ... We select information based on salience.

• Do not rush at the early stages of learning. High speed makes sense only when the fingers can hit the right keys by force of habit. Take your time when typing to avoid mistakes. The speed will pick up as you progress.

• You should establish and maintain a rhythm while typing. This means that keystrokes should come at equal intervals.

• Hit keys only with the fingers for which they have been reserved.

• Limit your hand and finger movement only to what is necessary to press a specific key. Keep your hands and fingers close to the base position. This improves typing speed and reduces stress on the hands.

• Don’t look at the keys when you type. Just slide your fingers around until they find the home row marking.

• Don’t hammer on the keys. Try using the minimum force possible.

• To switch between upper/lower case always use the opposite hand.

Positivity, Self- Awareness, and Stress management are three broad areas which influenced by self-management.

Positivity: Having a Long term and short-term goal is first to step to develop a positive outlook. We have to achieve a constant stream of positivity.

Self – Awareness: Understand your own behavior is one of the important skills.  We all have to learn ourselves from an objective standpoint.

Stress-Management: Our life is ruined by stress.  It destroyed our energy. So, we have to control our stress. To control the stress we have to take time and keep a deep breath for effective results.

Self-management is the ability to recognize your emotions and control the behaviors sparked by those emotions. For example, a person showing self-management is able to calm down, not yell or act out, in moments of anger or frustration.

Word processing mainly involves operations like creating, editing, viewing, searching and replacing, formatting, saving and printing text. 

Following the various software available for word processing

1:-) MS-WORD

2:-) OPEN OFFICE WRITER

3:-) WORDPAD

4:-) GOOGLE DOCS

Acute diseases

Diseases which last for short period of time is called acute disease. For example, common cold, fever, eye infections, pain, etc.

Chronic diseases

Diseases which last for long time is called as chronic diseases. For example, Kidney disease, heart disease, respiratory disease, etc. Also, it causes prolonged weakness in the body. For example, if person suffers from tuberculosis, the person can face weight loss and long period of weakness providing bad health.

Search Engine refers to a huge database of internet resources such as web pages, newsgroups, programs, images etc. It helps to locate information on World Wide Web.

User can search for any information by passing query in form of keywords or phrase. It then searches for relevant information in its database and return to the user.