Computer Awareness MCQs & Quiz for Banking, IBPS, RRB, RBI, SBI Exams - Set 2

1)   With which scientist is the discovery of first practical mechanical calculator associated?

a. Gottfried Leibniz
b. Blaise Pascal
c. George Boole
d. Charles Babbage
Answer  Explanation 

ANSWER: Blaise Pascal

Explanation:
Blaise Pascal had invented the first practical mechanical calculator. It was called the Pascaline and was used to help his father who was a tax-collector to solve his sums.


2)   Who had developed a computer named “Woz” described as the hacker’s hacker?

a. Steve Wozniack
b. Ed Roberts
c. Steve Jobs
d. Federico Faggin
Answer  Explanation 

ANSWER: Steve Wozniack

Explanation:
Steve Wozniak was a Californian electronics wizard, had developed a computer of his own named “Woz” often described as the hacker’s hacker.


3)   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  Explanation 

ANSWER: Alan Kay

Explanation:
The idea of the very first Graphical User Interface was conceived by Alan Kay. It was then pronounced as gooey.


4)   What kind of data is processed by an analog computer?

a. Discrete Data
b. Intermittent Data
c. Discretely varying Data
d. Continuously varying Data
Answer  Explanation 

ANSWER: Continuously varying Data

Explanation:
An analog computer is the one which is used to process continuously varying data. This changeable yet continuous data is generally referred to as the analog data.


5)   What is the meaning of the Greek word analogon from which the word analog has been derived?

a. According to an Equation
b. According to a Sum
c. According to a Ratio
d. According to a Dividend
Answer  Explanation 

ANSWER: According to a Ratio

Explanation:
The word analog is derived from the Greek word analogon which means according to a ratio.


6)   Which of the following are examples of analog computer?

a. Resistance of a Capacitor
b. Signal Frequency
c. Voltage
d. All of the above
Answer  Explanation 

ANSWER: All of the above

Explanation:
Examples of analog computer include temperature, pressure, telephone lines, signal frequency, resistance of a capacitor, voltage etc.


7)   Which is the first programmable analog computer?

a. South-Pointing Chariot
b. Planisphere
c. Castle Clock
d. Astrolabe
Answer  Explanation 

ANSWER: Castle Clock

Explanation:
The castle clock which was a hydro-powered mechanical astronomical clock which was invented by Al-Jazari was the first programmable analog clock


8)   What controlled the data-processing operations in the Harvard Mark I?

a. Electric relays
b. Memory
c. Switching Devices
d. Both 1 and 3
Answer  Explanation 

ANSWER: Both 1 and 3

Explanation:
In Harvard Mark I the data-processing operations are primarily controlled by electric relays or switching devices.


9)   What can possibly be contained by an Integrated Circuit chip?

a. CPU
b. Memory
c. Peripheral Devices
d. All of the above
Answer  Explanation 

ANSWER: All of the above

Explanation:
Most modern microprocessors are usually contained in a single integrated circuit chip that contains a CPU, memory, peripheral interfaces and even other components of the computer. These are usually called the systems on a chip.


10)   What are the possible uses of a home theatre PC?

a. Convergence Device
b. Digital Video Recorder
c. Digital Photo Viewer
d. All of the above
Answer  Explanation 

ANSWER: All of the above

Explanation:
A home theatre PC is a convergence device which is used as a Digital Video Recorder, digital photo viewer, video player, music player etc.