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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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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Computer Operator Questions and Answers (2073-01-29)

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IBM 1401 was brought to prepare the census report of … 2018 BS 2028 BS 2038 BS 2048 BS Transistor is related to ….. generation computers Second Third Fourth Fifth The ability to recover and read deleted or damaged files from a criminal’s computer is an example of an enforcement specially called Robotics Simulation Computer forensics Animation An area of a computer that temporarily holds data waiting to be processed is CPU Memory Storage File For reproducing sound, a CD (compact disk) audio player uses a ….. Quartz crystal Titanium needle Laser beam Barium Titanium Ceramic Unicode Standard is …. Software Font Character encoding system Keyboard layout A fault in a computer program which prevents it from working correctly is known as Boot Bug Biff Strap Program developed according to the requirement specific to an office is … Tailored software Utility software Packaged software All...
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