IT &computer MCQ section 3 MCQ Questions & Answers Detailed Explanation
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The following question based on IT & computer topic of general awareness mcq
(a) world wide wordstar
(b) world wide wrestling
(c) world wide web
(d) world without wrestling
The correct answers to the above question in:
Answer: (c)
www stands for the World Wide Web which is a system of Internet servers that support specially formatted documents. The documents are formatted in a markup language called HTML (HyperText Markup Language) that supports links to other documents, as well as graphics, audio, and video files.
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Read more it and computer Based General Awareness Questions and Answers
Question : 1
_____ is the part of the Central Processing Unit (CPU).
a) Keyboard
b) Monitor
c) Arithmetic and Logic Unit
d) Printer
Answer »Answer: (c)
A central processing unit (CPU), also known as processor, consists of two main components: Arithmetic Logic Unit (ALU), which performs arithmetic and logical operations and the Control Unit (CU), which extracts instructions from memory and decodes and executes them, calling on the ALU when necessary.ALU is a fundamental building block of CPU.
Question : 2
Which of the following computer memories is non-volatile ?
a) ROM
b) DRAM
c) SRAM
d) RAM
Answer »Answer: (a)
Read-only memory (ROM) is a form of data storage in computers and other electronic devices that is non-volatile. Its contents are retained even when the device is powered off. Other examples of nonvolatile memory include flash memory, ferroelectric RAM (F-RAM), hard disk drives, floppy disks, etc.
Question : 3
Arithmetic and Logic Unit I. Perform Arithmetic operations II. Store Data III. Perform comparisons IV. Communicate with input devices Which of the following is true ?
a) I and II
b) I only
c) III only
d) I and III
Answer »Answer: (d)
Arithmetic and Logic Unit (ALU) performs Arithmetic operations and comparisons.
Question : 4
Bluetooth technology allows
a) signal transmission on mobile phones only
b) wireless communications between equipments
c) landline to mobile phone communication
d) satellite television communication.
Answer »Answer: (b)
Bluetooth is a proprietary open wireless technology standard for exchanging data over short distance from fixed and mobile devices, created by telecom vendor Ericsson in 1994.
Question : 5
Where does a computer add, compare and shuffle data ?
a) Floppy disk
b) Memory chip
c) CPU chip
d) Hard disk
Answer »Answer: (c)
A central processing unit (CPU) is the hardware within a computer system that carries out the instructions of a computer program by performing the basic arithmetical, logical, and input/output operations of the system.
Two typical components of a CPU are the arithmetic logic unit (ALU), which performs arithmetic and logical operations, and the control unit (CU), which extracts instructions from memory and decodes and executes them, calling on the ALU when necessary.
In most computers, the shuffling of data between the CPU and RAM happens millions of times every second.
Question : 6
The new technology which is emerging in the field of computer is
a) Semiconductor technology
b) IC-technology
c) Parallel processing system
d) Transistor technology
Answer »Answer: (d)
Transistor technology is the new buzzword in the computer world. Replacing silicon transistors with carbon nanotubes could make any electronic device — smartphones, laptops, tablets and supercomputers — smaller and more powerful using less energy than those built using silicon-based transistors.
Scientists at Stanford University, in September 2013, announced to have built the first functioning computer that used only carbon nanotube transistors.
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IT &computer MCQ section 1
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IT &computer MCQ section 3
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IT &computer MCQ section 6
IT &computer MCQ section 7
IT & computer Shortcuts and Techniques with Examples
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