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Q. Illustration of disk formatting?
An illustration of disk formatting is displayed in Figure below. In this case every track comprises 30 fixed-length sectors of 600 bytes each. Every sector holds 512 bytes of data and control information useful to disk controller. ID field is a unique identifier or address used to place a particular sector. SYNC byte is a special bit pattern which set the limits of the beginning of field. The track number recognizes a track on a surface. Head number identifies a head since this disk has many surfaces. ID and data fields each one comprise an error-detecting code.
Figure: A typical Track Format for Winchester Disk
Opening Files for Reading Only : A data file is a file that you can open and read its contents visually - for example, C source files, .dat files, HTML etc - anything that look
i read in b.tech 3year.i can go to hadrabad becouse read of branch parer.why the best instituies in hadrabad in purpus gate and branch paper
Explain Classless Inter-Domain Routing. It is a new addressing scheme for the internet that permits for more efficient allocation of IP addresses than old class A, B and C addr
Why is fragmentation needed on Internet not on a typical WAN? TCP/IP protocol utilizes the name IP datagram to demote to an Internet packet. The amount of data carried into a d
Q. Explain about System Deadlock? A deadlock denotes to the condition when simultaneous processes are holding resources and putting off each other from finishing their executio
(a+b-c)*(e/f)-(g-h/i)
How is a valid user identifier accomplished? A valid user identifier is accomplished within one or more of given ways: • Provide some password, which only user knows. • P
How many types of keys used to encrypt and decrypt data in Secure Sockets Layer? Two forms of keys are used as ciphers to decrypt and encrypt data. Private keys are referred to
Explain segmentation? Segment memory addressing divides memory into many segments. Each of these segments can be considered as a linear memory space. Every one of these segmen
Q. What is Tape Backup? Magnetic tapes are used these days in computers for the below purposes: Backing up data stored in disks. It is essential to regularly save data s
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