The accompanying figure depicts the four categories of input. They include data, programs, commands, and user responses. Briefly define input and each of the four categories
What will be an ideal response?
ANSWER:
Input is what you enter into the memory of a computer.
Data is a collection of unprocessed items. A computer manipulates and processes data into information that is useful, such as words, numbers, pictures, sounds, and so on. Although a single item of data should be referred to as a datum, the term data commonly is used and accepted as both the singular and plural form of the word.
A program is a series of instructions that tells a computer how to perform the tasks necessary to process data into information. Programs are kept on storage media such as a hard disk, CD, or DVD. Programs respond to commands issued by users.
A command is an instruction given to a computer program. Commands can be issued by typing keywords or pressing special keys on the keyboard. A keyword is a special word, phrase, or code that a program understands as an instruction. Many programs also allow you to issue commands by selecting graphical objects. Today, most programs have a graphical user interface that uses icons, buttons, and other graphical objects to issue commands.
Sometimes a program asks a question, such as “Do you want to save the changes you made?” that requires a user response. Based on your response, the program performs specific actions. For example, if you answer Yes to this question, the program saves your file to a storage medium.
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Describe the similarities and differences between notetaking and note making.
What will be an ideal response?
If the water in a jar evaporates 1 centimeter per day at a room temperature of 75 degrees and 3 centimeters per day at 85 degrees, how much do you estimate will evaporate at a temperature of 95 degrees?
a. 6 centimeters b. 7 centimeters c. 9 centimeters d. 25 centimeters
Developing number sense is an important part of the curriculum for the primary grades. Which of the following statements is not true regarding number sense?
a. According to research, number relationships cannot be taught directly to children. b. Number sense consists of understanding number meanings and number relationships. c. Children should be encouraged to verbalize number relationships, even before they can write. d. All of the above statements are true.
Why do our ears "pop" when we rise quickly in the elevator of a tall building?
a. Because air pressure in the inner ear is rising while the outside air pressure remains the same with increased altitude b. Because air pressure in the inner ear tends to remain the same while the outside air pressure decreases with increased altitude c. Because air pressure in the inner ear tends to remain the same while the outside air pressure increases with increased altitude d. None of the above