Computer Software

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Software is a collection of computer programs and related data that provide the instructions for telling a computer what to do and how to do.

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A software is an interface between the user and the computer hardware. It is responsible for controlling and managing the hardware components of a computer system and for accomplishing specific tasks.

Types of Software

Computer Memory MCQ part 2

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Part-1MCQ

31.Hard drive is used to store ......

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Ans: Permanent data

32. The hard drive is normally located .....

Ans: inside the system base unit

33. Floppy disks are organised as.

Ans: tracks and sectors

34. The capacity of 3.5 inch floppy disk is?

Ans: 1.44 MB

35. The most common storage device for the personal computer is the .....

Ans: Floppy disk

Computer Memory MCQ

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1. Which is representative of the size of the memory ?

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Ans: Storage capacity

2. Where is data saved permanently ?

Ans: Storage

3. Where are programs and data to be used by the computer available ?

Ans: Storage

4. Primary storage is .............. as compared to secondary storage ?

Ans: Fast and expensive

5. Internal storage is also called main .........

Ans: Memory

6. The two kinds of main memory are ..........

Ans: ROM and RAM

Basic Units of Memory Measurements

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* The Rate at which data is written to disc or read from disc is called Data Transfer Rate.

* Root Directory is the main folder of disc. It contains information about all folders on the disc.

Memory Cards

These are the data storage devices in a chip shaped which can store the data in it. They are commonly used in many electronic devices, including digital cameras, mobile phone, laptop, etc.

They are small, re-recordable, easily portable and very light weighted.

Secondary memory devices and their storage method and capacity are as follows: 

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Memory Devices and their Storage Method

Secondory Memory Devices	Storage Method	Capacity
Floppy Disk	Magnetic	1.2MB
Floppy Disk	Magnetic	1.44MB
Floppy Disk	Magnetic	80KB to 242KB
CD-ROM	Optical	640MB to 680MB
DVD-ROM	Optical	4.7GB to 17GB
Pen Drive	Solid State	1GB to 512GB
Magnetic Tape	Magnetic	Up to 1 TB

Units of Memory Measurements

Computer Memory

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The computer memory is one of the most important elements in a
computer system. It stores data and instruction required during the processing of data and output results. Storage may be required for a limited period of time, instantly or for an extended period of time. It also relates to many device that are responsible for storing data on a temporary or permanent basis.

Memory Hierarchy

Computer Hardware MCQ Part 2

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MCQ Part-2

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33. A device that makes copies and reproduces text and images is called  ? 

Ans: Scanner 

34. A ......... is used to read handwritten or printed text to make a digital image that is stored in memory. 

Ans: Scanner 

35. The input device to be used to get a printed diagram into a computer is the .......

Ans: Scanner 

36. A scanner scans ......

Ans: Pictures & Text

37. It is a video capturing device .....?

Ans: Webcam

Computer Hardware Important MCQ

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Computer Hardware MCQ

1. Any component of the computer you can see and touch is :

Ans: Hardware

2. Which of the following is not a hardware?

Ans: Java

3. An ....... device is any hardware component that allows you to enter data and instructions into a computer?

Ans: Input

4. Computer gets ...... with the help of mouse, joystick or keyboard.

Ans: input

5. Computer keyboard is an example of ......

Ans: Input device

6. The most common method of entering text and numerical data into a computer system is through the use of a .....

Ans: Keyboard

7. Which key is also known as toggle keys?

Ans: Caps lock & Num lock

Computer Hardware

Computer Hardware refers to the Physical components of a computer that can be seen and touched by the user. By the use of these hardware device, it made very easy for the computer for processingits data, store and retrive. Hardware is one of the basic and necessary parts of a computer system.

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Input Devices

An input device can be defined as an electro mechanical device that allows the user to feed data into the computer for analysis and storage and to give commands to the computer. The data is entered into the main memory through the input devices. 

The accept instructions from the user and convert the accepted instructions into the machine language.

Keyboard

It is one of the most common input device. The user can type text and command using this device. The layout of the keyboard was borrowed from the regular typewriter with some additional keys. Keyboard is used to enter data or information in a computer system, which may be in numeric form or alphabetic form. When key is pressed, keyboard interacts with a keyboard controller and keyboard buffer.

There are different types of keyboard such as QWERTY, DVORAK and AZERTY.

QWERTY keyboard contains 104 keys.