Computer Science Class 9 Chapter 4 MCQs With 3 Tests 9th Class Computer Science Chapter 4 Storage Device MCQs TEST 1: 0 Computer Science Chapter 4 – Storage Devices Test 1 1 / 20 Main memory is an extension of? Ram Rom Hard disk Both a b 2 / 20 Computer storage is basically divided into? Ram Rom Main memory Secondary Storage Main memory Hard disk Floppy Hard disk 3 / 20 The storing capacity of a computer is measured in? Bit Byte Kilogram Gigabyte 4 / 20 A bit can be? I or 0 I and 0 I only 0 only 5 / 20 The capacity of a storage device is expressed as the number of? Byte Bits Character All these 6 / 20 More RAM can make computers? Expensive Run slower Run fast None 7 / 20 Generally RAM (random access memory) is measured in? Bytes K bytes M bytes Both b and c 8 / 20 Which among the following is referred to as volatile memory? Read only memory Random access memory Flash memory Cache memory 9 / 20 If the memory of a computer is 32000 bytes. It means it can store how many characters? 32 32000 64 2400 10 / 20 Which memory provides very fast performance? Cache memory Secondary memory Random access memory Read only memory 11 / 20 We can search any item by simply specifying? The hard disk tracks ROM size Address in direct access storage None of the above 12 / 20 The surface of a hard disk is logically divided into? Firmware None Physically marking tracks Pie-shaped sectors 13 / 20 The number of sectors of a hard disk depends upon the? Density of the hard disk Speed of the motor Number of read/write head Capacity of RAM 14 / 20 A variation of ROM is? Flash Memory Cache Memory Programmable read only memory (PROM) Direct access storage 15 / 20 RAM is called volatile memory because the data stored in it? Don’t disappear whenever the computer turns off Disappear whenever the computer turns off. CPU can directly access the RAM It is very fast 16 / 20 Typically the storage capacity of a sector can be? 512 bytes 512 kilobytes Always 2 bits 1 2 the capacity of RAM 17 / 20 The capacity of a hard disk depends upon the? High speed motor Movement of read/write head Complexity of software Number of disk platters 18 / 20 Computer storage is also referred to as? Computer device Computer RAM Computer memory None of above 19 / 20 Main memory performance is? Fast Slow Very fast None 20 / 20 Auxiliary storage provides? Minimum capacity Maximum capacity Both a b None Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz 9th Class Computer Science Chapter 4 Storage Device MCQs TEST 2: 0 Computer Science Chapter 4 – Storage Devices Test 2 1 / 15 Computer memory is? Mechanical File An electronic file both of above None 2 / 15 1 represents the data? On Off both of above None 3 / 15 Each byte contains? Information I Character both of above None 4 / 15 Computer storage is divided into classes? Two Three Four Five 5 / 15 Main memory is directly accessible by? CPU Printer Scanner Keyboard 6 / 15 The basic information unit is called a? Character Word Nibble None 7 / 15 A word of 16 bits size can be called? 4 Byte word I Byte word 2 Byte word 1 Nibble 8 / 15 1 kilobyte equals? 212 byte 220 byte 210 byte 230 byte 9 / 15 The ROM has types? Two Three PROM EPROM 10 / 15 When the power shuts off the contains are lost? From ROM From RAM Both of above None 11 / 15 The most common RAM technologies are? Two Three Four Five 12 / 15 The much more expensive and requires more space and power? RAM SRAM DRAM ROM 13 / 15 The capacity of RAM affects the computer? Size Length Power Life 14 / 15 DRAM needs to be refreshed? Periodically Hourly Weekly Yearly 15 / 15 DRAM is most commonly used technology to build? Software’s Dynamic RAM RAM chips Static RAM Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz 9th Class Computer Science Chapter 4 Storage Device MCQs TEST 3: 0 Computer Science Chapter 4 – Storage Devices Test 3 1 / 15 Which RAM is faster? SRAM DRAM PRAM Both (a) (b) 2 / 15 SRAM is known as the? Main memory Secondary memory Cache memory None 3 / 15 MSB stands for? Microsoft significant byte Most significant byte Microsoft significant bit Most significant bit 4 / 15 In EEPROM data is erased by? Magnetically devices Electrical devices Electrochemical devices None 5 / 15 Which RAM is less expensive? SRAM DRAM PRAM Both (a) (b) 6 / 15 Which disk is mostly used for transferring data? Floppy disk Hard disk CD DVD 7 / 15 The most common size of floppy disk is? 2.5″ 3.5“ 4.5″ 5.5″ 8 / 15 Floppy disk is encased in a rigid? Aluminum case Iron body Envelope Silicon case 9 / 15 A floppy disk is a storage medium? Electric Electronic Chemical Magnetic 10 / 15 Floppy disks? Are slower but less expressive Have less storage capacity Are portable All of these 11 / 15 Basic sizes of floppy disks are? 8-inch 5 1/4 —inch 3 1/2-inch All of these 12 / 15 Which size of floppy disk is most commonly used? 8-inch 5 1/4 -inch 3 1/2-inch 1 1/4 -inch 13 / 15 How many hard disks digital computers use? One At most one At least one None 14 / 15 Typically a track is divided into sectors? 1 5 7 8 15 / 15 A sector usually contains a fixed number of bytes of data i.e? 256 bytes 512 bytes 28 bytes 1024-bytes Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz
