The megatron 777 disk has the following characteristics: 1. there are ten surfaces, with 100,000 tracks each. 2. tracks hold an average of 1000 sectors of 1024 bytes each. 3. 20% of each track is used for gaps. 4. the disk rotates at 10,000 rpm. 5. the time it takes the head to move n tracks is 1 + 0.0002n milliseconds. answer the following questions about the megatron 777. a) what is the capacity of the disk? b) if tracks are located on the outer inch of a 3.5-inch-diameter surface, what is the average density of bits in the sectors of a track? c) what is the maximum seek time? d) what is the maximum rotational latency? e) if a block is 65,546 bytes (i. e., 64 sectors), what is the transfer time of a block? f) what is the average seek time? g) what is the average rotational latency?

Write a program that uses a widgetviewer object to do the following: generate two random integers between 1 and 9 (inclusive). name one of them x, the other y. display them to the user using jlabel objects. create a jlabel object displaying the text "enter an operation number." create a jtextfield for the user's input. create a jbutton displaying the text "press here when you've entered your operation." use addandwait to add it to the widgetviewer object. when the user clicks the jbutton, evaluate operation in the following order to determine the one and only mathematical operation to perform on x and y. use a jlabel to display the result. if operation is between 1 and 10 inclusive, add x and y. if operation is evenly divisible by 4, subtract y from x. if operation is evenly divisible by 5, use integer division to divide y into x. if operation is an even number, use floating point division to divide y into x. if none of the other tests on operation apply, multiply x and y. note: operation can be negative or zero.

Alook-up table used to convert pixel values to output values on a monitor. essentially, all pixels with a value of 190 or above are shown as white (i. e. 255), and all values with a value of 63 or less are shown as black (i. e. 0). in between the pixels are scaled so that a pixel with a value p is converted to a pixel of value 2/127 −+3969). if a pixel has a value of 170 originally, what value will be used to display the pixel on the monitor? if a value of 110 is used to display the pixel on the monitor, what was the original value of the pixel?

Print "usernum1 is negative." if usernum1 is less than 0. end with newline. convert usernum2 to 0 if usernum2 is greater than 10. otherwise, print "usernum2 is less than or equal to 10.". end with newline