ECAT Computer Science MCQ's Test For Full Book With Answers

ECAT Computer Science MCQ's Test For Full Book

Sr. # Questions Answers Choice
1 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
2 A storage medium which cannot support both direct-access and sequential-access application is. magnetic drum hard disk magnetic tape floppy disk
3 A pictorial screen symbol that represents a computer activity is called a(n). pointer touch screen icon MICR
4 The speed with which a disk can find data being bought is called. access time data transfer time direct time cylinder time
5 The time require for the access arm to get into position over a particular track is. rotational delay data transfer seek time head switching
6 A disk pack withing a sealed data module is a. Backup unit Winchester diskette CD-ROM
7 DASD refers to. disk storage track tape storage sorting
8 Soft copy refers to. OCR-A screen output microfiche digitizing
9 A device that inputs data by scanning letters and numbers is a. keyboard wand reader mouse diskette
10 A device used for optical-character recognition is a. wand reader light pen mouse MICR reader
11 Another word for printer. monochrome microfiche pixel cursor
12 A digital computer system consists of a central processing unit (CPU) interfaced with. input devices auxilary storage output devices all of the above
13 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
14 To most commonly used output device today is a. CRT monitor keyboard mouse card punch
15 If electrical power supply to a computer system is inadvertently disrupted, the serious damage would occur to. CPU disk CRT printer
16 A magnetized spot represents. cpi MB 0 bit 1 bit
17 To concept of using several small disk packs that work together as a unit is. CD-ROM RAID WORM OMR
18 CD-ROM has the same format as a(n). backup tape DAT diskette audio compact disk
19 Personal computer users may wish to increase their hard disk storage capacity with. higher density DAT read only media removable hard disk cartridge
20 The disk storage that uses both a magnet and laser beam. hashing magneto-optical CD-ROM WORM
21 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
22 Computer output produced as small film images is called. OCR COM LCD OMR
23 The CRT technology with the best resolution. MICR VGA SVGA LCD
24 A color screen with the best resolution has the most. CRT VGA COM pixel
25 Which input device is often attached to laptop computers. trackball inscriber graphics display wand reader
26 The mechanism for reading or writing data in a disk is called a(n). track rotational delay seek time access arm
27 The cursor can be moved rolling this device on a flat surface. mouse wand reader trackball interactive tablet
28 Imaging used what device to input data.? scanner icon bar code reader tablet
29 Voice input devices convert voice input to. digital code OCR-A bar codes optical marks
30 Laser beam technology is used for. terminals optical disk keyboards magnetic tape
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