Computer Operator Questions and Answers 2074-05-23

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What is Logic Gates?

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What is Logic Gates? Introduction Logic gates serve as the building blocks to digital logic circuits using combinational logic. We're going to consider the following gates: NOT gates (also called inverters), AND gates, OR gates, NAND gates, NOR gates, XOR gates, and XNOR gates. We'll also discuss the concept of gate deltay. NOT gates NOT gates or inverters have a single bit input and a single bit of output. This is a diagram of a NOT gate. It is a triangle with a circle on the right. The circle indicates "negation". The truth table defines the behavior of this gate.   x     z   0 1 1 0 where x is the input and z is the output. AND 2 gates AND 2 gates have two bits of input and a single bit of output. The subscript, 2, indicates how many inputs this AND gate has. For example, AND 3 gates have 3 inputs. The output of AND 2 gate is 1 only if both inputs are...
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What is Booting? Types of Booting.

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What is Booting? Type of Booting Written by Dinesh Thakur Booting : When we start our Computer then there is an operation which is performed automatically by the Computer which is also called as Booting. In the Booting, System will check all the hardware’s and Software’s those are installed or Attached with the System and this will also load all the Files those are needed for running a system.   In the Booting Process all the Files those are Stored into the ROM Chip will also be Loaded for Running the System. In the Booting Process the System will read all the information from the Files those are Stored into the ROM Chip and the ROM chip will read all the instructions those are Stored into these Files. After the Booting of the System this will automatically display all the information on the System. The Instructions those are necessary to Start the System will be read at the Time of Booting.   There are two Types of Booting    1) Warm Boot...
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Computer Operator Questions and Answer of 2072

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1. Which function will calculate the number of worksays between 6/9/2004 and 8/12/2004 ? A) Workday B) Date √ C) Networkdays D) All of the above   2. Which button do you click to add up a series of numbers? √ A) The autosum button B) The formula button C) The quicktotal button D) The total button   3. Which command will you choose to convert a column of data into row? A) Cut and Paste √ B) Edit>Paste Special> Transpose C) Both of above D) None of above   4. Which of the following is an example of relative cell address? √ A) B9 B) D$9 C) $F5 D) $M$2   5. …….. is a collection of data stored in a standardized format, designed to be shared by multiple users. √ A) Database B) Record C) Database Management System D) Relation 6. The Column of a table is referred to as the ……. A) Tuple √ B) Attribute C) Entity D) Degree   7. A Field or group of fields that uniquely identifie...
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