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 liquid crystal display
2 The ability to return a changed disk record to its original location is called. magneto-optical rotational delay multimedia updating in place
3 The major disadvantage of magnetic tapes is. cost unreliability of store data slow data recording data is to be accessed sequentially
4 Records stored on a Direct Access storage device. must be read in a specific order must be read in groups must be read directly must be read sequentially or directly
5 Assigning more sectors to outer disk tracks is called. zone recording randomizing data transfer sectoring
6 Shift of a 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 cannot support both direct-access and sequential-access application is. magnetic drum hard disk magnetic tape floppy disk
8 A pictorial screen symbol that represents a computer activity is called a(n). pointer touch screen icon MICR
9 The speed with which a disk can find data being bought is called. access time data transfer time direct time cylinder time
10 The time require for the access arm to get into position over a particular track is. rotational delay data transfer seek time head switching
11 A disk pack withing a sealed data module is a. Backup unit Winchester diskette CD-ROM
12 DASD refers to. disk storage track tape storage sorting
13 Soft copy refers to. OCR-A screen output microfiche digitizing
14 A device that inputs data by scanning letters and numbers is a. keyboard wand reader mouse diskette
15 A device used for optical-character recognition is a. wand reader light pen mouse MICR reader
16 Another word for printer. monochrome microfiche pixel cursor
17 A digital computer system consists of a central processing unit (CPU) interfaced with. input devices auxilary storage output devices all of the above
18 The most common storage devices in a computer system are. printers and monitors disk drives and printer disk drives and tape derives tape drives and keyboards
19 To most commonly used output device today is a. CRT monitor keyboard mouse card punch
20 If electrical power supply to a computer system is inadvertently disrupted, the serious damage would occur to. CPU disk CRT printer
21 A magnetized spot represents. cpi MB 0 bit 1 bit
22 To concept of using several small disk packs that work together as a unit is. CD-ROM RAID WORM OMR
23 CD-ROM has the same format as a(n). backup tape DAT diskette audio compact disk
24 Personal computer users may wish to increase their hard disk storage capacity with. higher density DAT read only media removable hard disk cartridge
25 The disk storage that uses both a magnet and laser beam. hashing magneto-optical CD-ROM WORM
26 In a computer system, which of the following has largest number of mechanical components and thus most unreliable. magnetic tape magnetic drum floppy disk printer
27 Computer output produced as small film images is called. OCR COM LCD OMR
28 The CRT technology with the best resolution. MICR VGA SVGA LCD
29 A color screen with the best resolution has the most. CRT VGA COM pixel
30 Which input device is often attached to laptop computers. trackball inscriber graphics display wand reader
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