Which among following is responsible for finding and loading operating system into RAM ?
Answer: C
The bootstrap loader finds and loads the operating system into RAM.
The BIOS reads it from the boot sector and hands over control; it then locates the kernel and loads it. The name comes from the idea of pulling oneself up by one's own bootstraps.
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Which among following is associated with monitor ?
Answer: A
The CRT is associated with a monitor.
A cathode ray tube fires electrons at a phosphor screen, deflected by coils to scan out the picture. CU and ALU are parts of the processor.
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What does ECP stand for?
Answer: A
ECP stands for Extended Capabilities Port.
It is a fast bidirectional mode of the PC parallel port, developed by Microsoft and Hewlett-Packard, using DMA to move data far faster than the original unidirectional printer port.
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Compiler is related to
Answer: D
A compiler belongs to programming languages.
It translates source code written in a high-level language into machine code, checking the syntax and optimising as it goes, and produces an executable that runs without the compiler present.
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In a color television set using a picture tube a high voltage is used to accelerate electron beams to light the screen. That voltage is about...?
Answer: C
A colour picture tube uses about 25,000 volts to accelerate the electron beams.
The flyback transformer generates it. At that energy the electrons excite the phosphors brightly enough to be seen in daylight, and the tube also emits some X-rays, which the leaded glass absorbs.
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The range of frequencies available for data transmission is known as
Answer: B
The range of frequencies available for data transmission is the bandwidth.
Strictly it is the width of the frequency band in hertz, but the word is also used for the resulting data rate. The two are linked: Shannon's theorem sets the maximum rate a channel of given bandwidth and noise can carry.
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MICR stands for -
Answer: A
MICR stands for magnetic ink character recognition.
The characters along the bottom of a cheque are printed in ink containing iron oxide, which can be read magnetically even through a signature or a stamp. Banks use it to sort cheques at high speed.
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'DB' computer abbreviation usually means ?
Answer: A
DB stands for database.
A database is an organised collection of data with software to store, retrieve and update it. The relational model, proposed by E.F. Codd in 1970, organises it into tables of rows and columns queried with SQL.
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Which among following is considered as fastest memory ?
Answer: A
Cache is the fastest memory.
It sits between the processor and main memory, holding recently used data, and is built of static RAM on the processor die itself. Access takes a few clock cycles against tens or hundreds for main memory.
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Which code is a string of binary digits ?
Answer: C
A string of binary digits specifying an operation is an instruction code.
It divides into the operation code, which says what to do, and the address field, which says what to do it to.
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