Given the following characteristics for a magnetic tape using linear recording described in device management chapter: Density = 1600 bpi (bytes per inch) Speed = 1500 inches/second Size = 2400 feet Start/stop time = 4 ms Number of records to be stored = 200,000 records Size of each record = 160 bytes Block size = 10 logical records IBG = 0.5 inch Find the following: 17.1 Number of blocks needed. 17.2 Size of the block in bytes.

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Fundamentals of Input and Output Performance

The I/O subsystem is a component of computer system design that uses buses to assist communication between the Central Processing Unit, Computer Memory/Storage, and Input and Output Devices (that is known as peripheral devices). The I/O subsystem includes disc controllers, tape drives, discs, system buses, and other devices. The I/O database application reads and writes drives using the operating system windows I/O.