ECAT Computer Science Online Test With Answers

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ECAT Computer Science Online Test

Sr. # Questions Answers Choice
1 A one color screen on a black background is called monochrome addressable blank lcd
2 The ability to return a change disk record to its original location is called magneto optical rotational delay updating in place multimedia
3 The major disadvantage of magnetic tape is cost unreliability of store data slow data recording data is accessed sequentially
4 Assigning more sector to outer hard disk is called data transfer randomizing sectoring zone recording
5 Assigning more sector to outer hard disk is called zone recording randomizing sectoring data transfer
6 Shift of register by one bit to left in binary code is equivalent to addition of 2 subtraction of 2 division by 2 multiplication by 2
7 A storage medium which can not support both direct access and sequential access application is <blockquote style="margin: 0 0 0 40px; border: none; padding: 0px;">magnetic drum</blockquote> hard disk magnetic tape floppy disk
8 A pictorial screen symbol that represent a computer activity is called touch screen icon miicr pointer
9 A pictorial screen symbol that represent a computer activity is called pointer touch screen miicr icon
10 The speed at which a disk can find data being bought is called access time data transfer rate direct time cylinder time
11 The time required for the access arm to get into position over a particular track is rotational delay data transfer seek time head switching
12 A disk pack within a selected data module is a backup unit Winchester diskette Cd-Rom
13 A disk pack within a selected data module is a backup unit Winchester diskette Cd-Rom
14 DASD refers to disk storage track tape storage sorting
15 Soft copy refers to OCR-A screen output microfiche digitizing
16 A device that inputs data by scanning letters and number is a keyboard wand reader mouse diskette
17 A device used for optical character recognition is wand reader light pen mouse micr reader
18 Abother word for printer monochrome microfiche ` pixel cursos
19 A digital computer system consists of a central processing unit interfaced with input devices auxiliary storage output devices all of above
20 The most commonly used output devices in a computer system are printers and monitors disk drives and printers disk drive and tape drives tape drive and keyboards
21 If electrical power supply to a computer system is inadvertently disrupted ,the serious damage would occur to CPU disk CRT printer
22 A magnetize spot represent CPI MB 0 bit 1 bit
23 A magnetized spot represents cpi MB 0 bit 1 bit
24 Which is not beneficial of secondary storage convenience DAT economy space
25 The concept of using several small disk packs that work together as a unit is CD-ROM RAID WORM OMR
26 CD-ROM has the same format as DAT diskette audio compact disk backup tape
27 CD-ROM has the same format as backup tape DAT diskette audio compact disk
28 Personal computer user may wish to increase their hard disk storage capacity with higher density DAT read only media removable hard disk cartridge.
29 The disk storage that use both magnet and laser beam hashing magneto optical CD-ROM WORM
30 In a computer system,which of the following has largest number of mechanical components and thus most unreliable : magnetic disk magnetic drum floppy disk printer
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