Fundamentals of Computer - Short Question Answer

Here in this section of Fundamentals of Computer Short Questions Answers, We have listed out some of the important Short Questions with Answers which will help students to answer it correctly in their University Written Exam.

1. Who is a DBA? What are the responsibilities of a DBA?

A database administrator (short form DBA) is a person responsible for the design, implementation, maintenance and repair of an organization’s database. They are also known by the titles Database Coordinator or Database Programmer, and is closely related to the Database Analyst, Database Modeller, Programmer Analyst, and Systems Manager.

The role includes the development and design of database strategies, monitoring and improving database performance and capacity, and planning for future expansion requirements. They may also plan, co-ordinate and implement security measures to safeguard the database

2. What are the Input and Output Devices of Computer?

Some commonly used Input and Output devices are listed in below.

Input Devices 

  • Keyboard  
  • Mouse  
  • Joystick  
  • Scanner  
  • Light Pen  
  • Touch Screen
  • Microphone
  • Barcode reader
  • Camera
  • Trackballs
  • Gamepad
  • OCR
  • Magnetic tape drive
  • Graphics tablet

Output Devices

  • Printer
  • Monitor
  • Speaker
  • Projector
  • Film recorder
  • Plotter
  • Visual display unit
3. What are the Types Of Computer?

Computers can be generally classified by size and power as follows, though there is considerable overlap:

  • Personal computer: A small, single-user computer based on a microprocessor.
  • Workstation: A powerful, single-user computer. A workstation is like a personal computer, but it has a more powerful microprocessor and, in general, a higher-quality monitor.
  • Minicomputer: A multi-user computer capable of supporting up to hundreds of users simultaneously.
  • Mainframe: A powerful multi-user computer capable of supporting many hundreds or thousands of users simultaneously.
  • Supercomputer: An extremely fast computer that can perform hundreds of millions of instructions per second.
4. What Is Computer?

A computer is a machine that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming.

Modern computers have the ability to follow generalized sets of operations, called programs. These programs enable computers to perform an extremely wide range of tasks. (Source: Wikipedia)

Modern computers are electronic and digital. The actual machinery (wires, transistors, and circuits) is called hardware; the instructions and data are called software. All general-purpose computers require the following hardware components:

  • Central processing unit (CPU): The heart of the computer, this is the component that actually executes instructions organized in programs (“software”) which tell the computer what to do.
  • Memory (fast, expensive, short-term memory): Enables a computer to store, at least temporarily, data, programs, and intermediate results.
  • Mass storage device (slower, cheaper, long-term memory): Allows a computer to permanently retain large amounts of data and programs between jobs. Common mass storage devices include disk drives and tape drives.
  • Input device: Usually a keyboard and mouse, the input device is the conduit through which data and instructions enter a computer.
  • Output device: A display screen, printer, or other device that lets you see what the computer has accomplished.
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