Computer Basic Information A beam of light used to record and retrieve data on optical disks is known as polarized light coloured light laser None of these unpolarized concentric light polarized light coloured light laser None of these unpolarized concentric light ANSWER DOWNLOAD EXAMIANS APP
Computer Basic Information The first large scale electronic computer which became operational in 1946 and contained approximately 18000 vacuum tubes and could perform 300 multiplications per second was known as JOHNIAC None of these EDSAC ENIAC ILLIAC JOHNIAC None of these EDSAC ENIAC ILLIAC ANSWER DOWNLOAD EXAMIANS APP
Computer Basic Information Hardware includes .......... the computer and all the devices connected to it that are used to input and output data. all devices used to input data into a computer. all devices involved in processing information including the central processing unit, memory and storage. sets of instructions that a computer runs or executes. None of these the computer and all the devices connected to it that are used to input and output data. all devices used to input data into a computer. all devices involved in processing information including the central processing unit, memory and storage. sets of instructions that a computer runs or executes. None of these ANSWER DOWNLOAD EXAMIANS APP
Computer Basic Information A floppy disk contains Both circular tracks and sector All of these Circular tracks only Sectors only None of these Both circular tracks and sector All of these Circular tracks only Sectors only None of these ANSWER DOWNLOAD EXAMIANS APP
Computer Basic Information The first mechanical calculating machine was made by Blaise Pascal Charles Babbage None of these Gottfried Leibnitz William Oughtred Blaise Pascal Charles Babbage None of these Gottfried Leibnitz William Oughtred ANSWER DOWNLOAD EXAMIANS APP
Computer Basic Information The main purpose of the off line device is To reduce the no.of operator errors in recording data To save floor space in the computer centre To save computer time None of these All of these To reduce the no.of operator errors in recording data To save floor space in the computer centre To save computer time None of these All of these ANSWER DOWNLOAD EXAMIANS APP
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