Write down about different types of programming languages based on evolution history.

Based on evolution history, programming languages are divided into these three broad categories, they are as follows,

Write short notes on Optical Storage Device

Storage Device:

Those memory devices where we can store data and the data remains in it even without electricity are called storage devices. Along with various programs and system software, user can also keep, delete, move, update the data in storage devices, while this can not be done in memory devices by the user.

Storage devices are very important, along with the need storage for our data, the system software needs to store it's necessary file and configuration even when the computer has no electricity. 

There are primarily 2 types of storage devices; one of those are Optical Storage Devices.

Write short notes on "Magnetic Storage Devices"

Storage Device:

Those memory devices where we can store data and the data remains in it even without electricity are called storage devices. Along with various programs and system software, user can also keep, delete, move, update the data in storage devices, while this can not be done in memory devices by the user.

Storage devices are very important, along with the need storage for our data, the system software needs to store it's necessary file and configuration even when the computer has no electricity. 

There are primarily 2 types of storage devices; one of those are Magnetic Storage Devices.

What is software? What are the various types of software.

Software:

Software is a set of instructions that make the computer perform tasks. In other words, software tells the computer what to do.

Though the array of available programs is vast and varied, most software fall into two major categories; system software and application software.

"Software brings the machine to life" - Justify this satement.

Software Brings The Machine to Life:

The ingredient that enables any computer to perform any task is software, which contains instructions. Set of instructions that drive a computer to perform specific tasks is called a program. These instructions tell the machine's physical components what to do; without the instructions the computer can not do anything.

Describe various kinds of key groups in keyboards

Keyboard:

Keyboard is an input device used to enter text, numbers and many more symbols and commands into the computer system.

Standard Keyboard Layout:

Keyboard comes in many styles or layouts. The various models differ from shape, size and feel. Among the IBM compatible computers, the most common keyboard layout is the IBM Enhanced Keyboard. It has about 100-104 keys on it. There are six groups of keys.

Differetiate between disk and diskette drives

Differences between disk and diskette drives:

The differences between disk and diskette drives are as follows.

How the computer accepts input from the keyboard?

Accepting Input from Keyboard:

When we press a key, a tiny chip in the keyboard called keyboard controller notes that a key has been pressed. Keyboard controller places a coed in the buffer of the keyboard to indicate which key was pressed. Keyboard buffer is a temporary memory of the keyboard controller. The keyboard controller sends a signal to the system software notifying that something happened at the keyboard.

"Keyboard is considered as an input device" - why?

Input Device:

As it's name implies, input devices are devices which can send signals to the CPU. That means, the device we use to send or enter a signal or data to CPU are called input device, such as; keyboard, mouse, microphone etc.

Describe the basic four parts of computer

No matter how big it is or how it is used, every computer is a part of a system. A complete computer system consists four basic parts, such as; (a) Hardware (b) Software (c) Data (d) User