Profit & Loss

 

 

1. One kilobyte has _____?

A) 1000 bytes
B)  128 bytes
C)  1024 bytes
D)  1036 bytes

ANSWER=   C [1024 bytes]
Explain:- 

 

2. Which among the following is NOT a search engine?

A)Google
B) Baidu
C)) Wolfram Alfa
D) Yahoo

ANSWER=   C [Wolfram Alfa 
Explain:-

 

3. Which is not a type of secondary memory?

A) Solid State Drive
B) Hard Disk
C)Random Access Memory (RAM)
D) USB Pen Drive

ANSWER= Random Access Memory (RAM)
Explain:-

 

4.Which of the following comprise the input devices? -

A) Keyboard
B) Mouse
C) Both 1 ans 2
D) Only 1

ANSWER=  C [Both 1 ans 2]
Explain:-

 

5.Which of the following is not the basic capability of a computer?

A) Speed
B) Accuracy
C) Prediction
D)Processing

ANSWER=C [Prediction]
Explain:-

 

6. Which of the following is not an input device of the computer?

A) Trackball
B) Image Scanner
C) Joystickg
D) Sound Card

ANSWER=: D [Sound Card]
Explain:-

 

7. Which of the following is a single integrated circuit on which a CPUs are typically constructed?

A) Microprocessor
B) Memory
C)Motherboard
D)  Hard Disk

ANSWER= (C) A [Microprocessor]
Explain:-

 

8. Which of the following includes Logic Operations?

A) AND
B)  XOR
C) NOT
D)  All of the above

ANSWER=  D [All of the above]
Explain:-

 

9.  Who had conceived the idea of the first ever Graphical User Interface?

A) Steve Jobs
B) Douglas Engelbart
C)Alan Kay
D) Bill Gates

ANSWER= : C [Alan Kay]
Explain:- he idea of the very first Graphical User Interface was conceived by Alan Kay. It was then pronounced as gooey.-

 

10. In which computer was magnetic core memory first demonstrated?

A)  Manchester baby
B)Ferranti I
C)IBM 650
D) Whirlwind Computer

ANSWER=  D [Whirlwind Computer]
Explain: -  The first use of magnetic core was demonstrated in the Whirlwind Computer in 1953.  Soon after that commercial production of the same began and it was seen in IBM 704 and Ferranti Mercury.-