Computer Knowledge

Computer Fundamentals and System Concepts

2,421 Questions

Computer fundamentals and system concepts questions cover core hardware components, operating systems, and historical computer milestones. Topics include the kernel, central processing unit, and basic computing terminology. These foundational questions are strictly essential for scoring well in computer knowledge sections.

Central processing unitComputer operating systemsSupercomputer milestonesSystem registry functionsKernel operationsAndroid applications

Computer Fundamentals and System Concepts Questions

Multiple choice

Which type of computers use the 8 bit code called EBCDIC?

  1. Mini Computers

  2. Micro Computers

  3. Mainframe Computers

  4. Super Computers
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

EBCDIC (Extended Binary Coded Decimal Interchange Code) is an 8-bit character encoding developed by IBM and used primarily in IBM mainframe computers. It's different from ASCII, which is more common in smaller systems. Minicomputers and microcomputers typically use ASCII, while supercomputers use various encodings but rarely EBCDIC.

Multiple choice

Which among the following is/are decision-making operations performed by ALU of a computer?

  1. Greater than

  2. Less than

  3. Equal to

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The ALU performs comparison operations as part of its decision-making capabilities. It can determine if one value is greater than, less than, or equal to another, which is fundamental for conditional branching in programs. All three comparison types are standard ALU operations.

Multiple choice

'IC' in computers stands for

  1. Integrated Charge

  2. Integrated Current

  3. Integrated Circuits

  4. Internal Circuits
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

IC stands for Integrated Circuits - the fundamental building blocks of modern electronics that combine multiple electronic components (transistors, resistors, capacitors) on a single semiconductor chip. 'Integrated Charge' and 'Integrated Current' are incorrect terms.

Multiple choice

A remote data entry means

  1. the program resides in the master computer and the data is read from the terminal

  2. both program and data are read from remote terminal

  3. both program and data are read from computer terminal

  4. None of the these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In remote data entry, the application program runs on the central host computer while data is entered from remote terminals connected to it. This is a classic client-server architecture.

Multiple choice

Which of the following is not a feature of PC?

  1. Actual Intelligence

  2. Accuracy

  3. Speed

  4. High storage
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

PCs have accuracy, speed, and high storage capacity. 'Actual Intelligence' is not a feature - PCs have artificial intelligence capabilities but not actual/real intelligence. This appears to be a trick question distinguishing between artificial and actual intelligence.

Multiple choice

The main computer that processes information is called

  1. host

  2. mainframe

  3. master

  4. All of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In computer networks, the host is the main computer that processes information and provides services to other connected computers or terminals. Mainframe is a specific type of large computer, while 'master' is not a standard technical term.

Multiple choice

Which was not there during the fourth generation of computer?

  1. Minicomputers

  2. Semiconductor

  3. CRT terminal

  4. Personal computers

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The question asks what was NOT present during fourth generation computers (1971-present, VLSI microprocessors). Minicomputers were primarily developed during the third generation (1965-1971, integrated circuits). Fourth generation saw personal computers, semiconductor memory, and GUI terminals - minicomputers existed earlier.

Multiple choice

Which was the bulkiest PC?

  1. 1st generation computer

  2. 2nd generation computer

  3. 4th generation computer

  4. None of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

First generation computers (1940s-1950s) used vacuum tubes and were enormous in size, often filling entire rooms. Second generation (transistors) and fourth generation (VLSI microprocessors) computers were progressively smaller and more compact. The term 'bulkiest' refers to physical size.

Multiple choice

Which of the following is/are the correct statements in Mobile computing security?

  1. A malware is a computer program that aims to harm the system in which it resides.

  2. A worm reproduces on multiple computers across a network.

  3. Trojans, worms and viruses come under the category of Malware.

  4. All of the above.

  5. Only (1) and (2).
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

These are the correct statements about mobile computing security.

Multiple choice

Directions: Choose the appropriate answer from the options given below:

Name the book about the computers which won the “Pulitzer Prize”.

  1. Soul of a New Machine

  2. Computer Savvy

  3. The Life Through the Computer

  4. Computer and Machines

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

'The Soul of a New Machine' by Tracy Kidder won the Pulitzer Prize for General Nonfiction in 1982. The book chronicles the development of a new computer at Data General Corporation, providing an inside look at the engineering process and corporate culture. It remains a classic work of technological journalism. The other options are not actual Pulitzer Prize-winning books about computers.