What is full form of CAM ?
Answer: A
CAM stands for computer aided manufacturing.
It uses computers to control machine tools directly, turning a CAD model into the tool paths a milling machine or lathe follows. Together they form CAD/CAM.
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Which interface is an entity that controls data transfer from external device, main memory and or CPU registers ?
Answer: D
The input-output interface controls data transfer between an external device, main memory and the CPU registers.
It resolves the differences in speed, word length and signalling between the fast processor and the slow peripheral, and handles the handshaking between them.
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On an excel sheet the active cell in indicated by -
Answer: C
The active cell in Excel is shown by a dark wide border.
It is the cell that will receive what is typed, and its reference appears in the Name Box at the left of the formula bar. The small square at its corner is the fill handle.
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What is full form of ISDN ?
Answer: A
ISDN stands for Integrated Services Digital Network.
It carried voice and data digitally over ordinary telephone lines, giving 64 kbps per channel. It was the main alternative to dial-up before DSL.
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Internet Explorer is a...
Answer: B
Internet Explorer is a web browser.
Microsoft released it in 1995 and bundled it with Windows, which won it about 95 per cent of the market by 2003 and led to the antitrust case. It was replaced by Edge in 2015.
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What is not always necessary for accessing the Web?
Answer: D
A modem is not always necessary to access the web.
A computer on a local network reaches the internet through a router and the network's own connection; only a dial-up or DSL line needs a modem of its own. A browser, a computer and a provider are all essential.
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What do you call a computer on a network that requests files from another computer?
Answer: A
A computer that requests files from another is a client.
The machine that supplies them is the server. The distinction is one of role, not of hardware: the same computer can be a client of one service and a server of another.
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What was the active medium used in the first working laser ever constructed?
Answer: C
The first working laser used a ruby rod.
Theodore Maiman built it at Hughes Research Laboratories in 1960, pumping a synthetic ruby cylinder with a photographic flash lamp to produce a deep red pulse at 694 nm.
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BIOS is used for -
Answer: A
The BIOS is used for loading the operating system.
It runs the power-on self test, initialises the hardware, then reads the boot sector of the chosen device and hands control to the loader it finds there.
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You should save your computer from?
Answer: D
You should protect a computer from viruses, time bombs and worms - all of them.
A virus attaches itself to a program, a worm spreads by itself across a network, and a time bomb lies dormant until a set date. Anti-virus software, prompt patching and backups guard against all three.
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