Computer & IT

note!Answer: B) Wide Area Network
WAN is Wide Area Network, a network spanning a large geographic area.

note!Answer: A) Magnetic Ink Character Reader
MICR is Magnetic Ink Character Recognition, used to read cheque numbers.

note!Answer: C) Scientific Applications
FORTRAN (Formula Translation) was designed for scientific and numerical computing.

note!Answer: D) All of the above
Floppy disks, tapes and network drives can all be used to store backup copies of data.

note!Answer: A) a sound card and speakers
Playing sound requires a sound card to produce audio and speakers to output it; a microphone is for recording.

note!Answer: D) Magnetic Tapes
Magnetic tapes have the lowest cost per bit among these storage devices.

note!Answer: C) Register
A register is a group of flip-flops that together store a multi-bit word.

note!Answer: B) Bytes
Bytes (8 bits) are the standard unit for data storage and addressing.

note!Answer: D) Shift register
A shift register moves stored bits left or right on each clock pulse.

note!Answer: A) Semiconductor Memories
Semiconductor memories are electronic and have access times in nanoseconds, far faster than mechanical or sequential media.

note!Answer: D) Both a & b
Both DRAM (dynamic) and SRAM (static) are semiconductor memories; bubble memory is magnetic.

note!Answer: B) CDROM
CD-ROM is read-only optical storage, while floppy and hard disks are read-write.

note!Answer: B) Pascal
Pascal is a programming language; Lotus and MS-Excel are software applications and Netscape is a web browser.

note!Answer: D) Assembler
An assembler translates assembly language into machine code.

note!Answer: B) A compiler converts the whole of a higher level program code into machine code in one step
A compiler translates the entire high-level program into machine code before execution, unlike an interpreter.

note!Answer: D) Specify the problem completely and clearly
Algorithms and flowcharts are tools for specifying a problem completely and clearly before writing a program.

note!Answer: D) 5 1/2"
Floppy disks came in 8-inch, 5.25-inch and 3.5-inch sizes; 5 1/2 inch is not a standard size.

note!Answer: A) Abacus
The abacus, used for counting and calculation thousands of years ago, is among the earliest calculating devices.

note!Answer: B) Thin blinking line
The cursor is a thin blinking line that marks the current position on screen.

note!Answer: D) All of the above
Tape, hard disk and floppy disk are all secondary storage devices that hold data permanently.