It is well known that computers operate in binary. Why aren't alternative systems like decimal, octal, and sixteenth used instead?

Determine the value of each of the following expressions. (For decimal numbers, round your answer to two decimal places.) (1) abs(-18) fabs(20.5) fabs(-87.2) pow(4, 2.0) pow(8.4, 3.5) sqrt(7.84) sqrt (196.0) sqrt (38.44)* pow(2.4, 2) / fabs(-3.2) floor(27.37) ceil(19.2) floor(12.45) + ceil(6.7) floor (-8.9) + ceil (3.45) floor(9.6) / ceil(3.7) pow(-4.0, 6.0) pow(10, -2.0) pow(9.2, 1.0 / 2)

24. A piece of wire is to be bent in the form of a rectangle to put around a picture frame. The length of the picture frame is 1.5 times the width. Write a program that prompts the user to input the length of the wire and outputs the length and width of the picture frame.

One way to determine how healthy a person is by measuring the body fat of the person. The formulas to determine the body fat for female and male are as follows: Body fat formula for women: A1 = (body weight x 0.732) + 8.987 A2 = wrist measurement (at fullest point)/3.140 A3 = waist measurement (at navel) x 0.157 A4 = hip measurement (at fullest point) x 0.249 A6 = forearm measurement (at fullest point) x 0.434 B = A1 + A2 A3 A4 + A5 Body fat = body weight - B Body fat percentage = body fat x 100/body weight Body fat formula for men: A1 = (Body weight x 1.082) + 94.42 A2 = wrist measurement x 4.15 B = A1 A2 Body fat = body weight B Body fat percentage = body fat x 100/body weight Write a program to calculate the body fat of a person.

(Mechanics) The deflection at any point along the centerline of a cantilevered beam, such as the one used for a balcony (see Figure 5.15), when a load is distributed evenly along the beam is given by this formula: d=wx224EI(x2+6l24lx) d is the deflection at location x (ft). xisthedistancefromthesecuredend( ft).wistheweightplacedattheendofthebeam( lbs/ft).listhebeamlength( ft). Eisthemodulesofelasticity( lbs/f t 2 ).Iisthesecondmomentofinertia( f t 4 ). For the beam shown in Figure 5.15, the second moment of inertia is determined as follows: l=bh312 b is the beam’s base. h is the beam’s height. Using these formulas, write, compile, and run a C++ program that determines and displays a table of the deflection for a cantilevered pine beam at half-foot increments along its length, using the following data: w=200lbs/ftl=3ftE=187.2106lb/ft2b=.2fth=.3ft

Data represented in ________ is transmitted accurately between computer equipment from different manufacturers if each computer’s CPU represents real numbers by using an IEEE standard notation.

(Practice) Show how the name KINGSLEY is stored in a computer that uses the ASCII code by drawing a diagram similar to Figure 2.7, shown previously.

(Heat transfer) The formula developed in Exercise 5 can be used to determine the cooling time, t, caused only by radiation, of each planet in the solar system. For convenience, this formula is repeated here (see Exercise 5 for a definition of each symbol): t=Nk2eAT3fin A=surfaceareaofasphere=4r2 N=numberofatoms=volumeofthespherevolumeofanatom Volume of a sphere sphere=43radius3 The volume of a single atom is approximately 11029m3 . Using this information and the current temperatures and radii listed in the following chart, determine the time it took each planet to cool to its current temperature, caused only by radiation.

1. Mark the following statements as true or false. a. The calculating device called the Pascaline could calculate sums up to eight figures long. (1) b. All programs must be loaded into the CPU before they can be executed and all data must be loaded into main memory before it can be manipulated. (2) c. Main memory is an ordered sequence of cells and each cell has a random location in main memory. (2) d. The program that loads first when you turn on your computer is called the operating system. (2) e. Analog signals represent information with a sequence of 0s and 1s. (3) f. The machine language is a sequence of 0s and 1s. (3) g. A Binary code is a sequence of 0s and 1s. (3) h. A sequence of eight bits is called a byte. (3) i. One GB is MB. (3) j. In ASCII, A is the 65th character. (3) k. The number system used by a computer is base 2. (3) l. An assembler translates the assembly language instructions into machine language. (4) m. A compiler translates the source program into an object program. n. In a program, statements that begin with the symbol are called preprocessor directives (7) o. An object program is the machine language version of a high-level language program. (9) p. All logical errors, such as division by 0, are reported by the compiler. (9) q. In object-oriented design (OOD), a program is a collection of interacting objects. (10) r. An object consists of data and operations on that data. (10) s. ISO stands for International Organization for Standardization. (11)