Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. What is Compact Disk Read Only Memory?
This technology has evolved out of entertainment electronics market where cassette tapes and long playing records are being replaced by CDs. Term CD used for audio records stands for Compact Disk. Disks used for data storage in digital computers are called as CD-ROM whose diameter is 5.25 inches. It can store around 650MB. Information in CD-ROM is written by creating pits on disk surface by shining a laser beam. As disk rotates laser beam traces out a continuous spiral. Focused beam makes a circular pit of around 0.8-micrometer diameter wherever a 1 is to be written and no pits (also known as a land) if a 0 is to be written. Figure below displays CD-ROM and DVD-ROM.
CD-ROM with pre-recorded information is read by CD-ROM reader which employs a laser beam for reading. It is rotated by a motor at a speed of 360 RPM. A laser head moves in and out to specified position. As disk rotates the head senses pits and land. This is converted to 1s and 0s by electronic interface and sent to computer. Disk speed of CD-ROM is denoted by notation nx where n is an integer denoting the factor by that original speed of 150KB/s is to be multiplied. It is associated to a computer by IDE and SCSI interfaces. The main application of CD-ROM is in distributing large text, audio and video. For illustration the whole Encyclopaedia could be stored in one CD-ROM. A 640MB CD-ROM can store 74 minutes of music.
What is byte addressable memory? The assignment of successive addresses to successive byte locations in the memory is known as byte addressable memory.
What is Digitizers A common device for drawing, painting, or interactively selecting coordinate positions on an object is a digitizer. These devices can be used to input coordi
With relevant logic diagram and truth table explain the working of a two input EX-OR gate. Ans. 2-Input EX-OR Gate: An EX-OR or Exclusive gate recognizes words that have an od
Memory-to-Memory Architecture : The pipelines can access vector operands, intermediate and final results directly in the main memory. This needs the higher memory bandwidth. How
Write a short note on MMX technology. MMX (Multimedia extensions) technology adds 57 new instructions to instruction set of the Pentium - 4 microprocessors. MMX technology also
Instruction Length: Variable-length instructions (Intel 80x86, VAX) need multi-step fetch and decode, but permit for a much more flexible and compressed instruction set.
how to reduce risc pipelining structure
Random Search - artificial intelligence: Some problems to be solved by a search agent are more creative in nature, for example, like in writing poetry. In this case, it is oft
What is a Priority Interrupt? Ans: A priority interrupt is a type of interrupt that establishes a priority over the many sources to determine which condition is to be serviced
Data can be changed from special code to temporal code by using ? Ans. By using Shift Registers data can be changed from special code to temporal code. A Register wherein data ge
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd