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What is an algorithm?

• An algorithm is a description of all computer devices

• An algorithm is a  set of steps that are followed in order to solve a mathematical problem or to complete a computer process

• An algorithm is a collection of  instruction

• An algorithm is a set of rules  

• An algorithm is the physical parts of the computer system

What is a program?

• A program is a logical parts of the computer system

• A program  is a set of steps that are followed in order to solve a mathematical problem

• A program  is a description of a process in a particular programming language that achieves some result that is useful to someone

• A program is a physical parts of the computer system

• A program is a set of rules  

The von Neumann architecture doesn't  include

• programming device

• input device

• arithmetic logic unit

• output device

• memory unit

What is Software?

• it is a collection of instructions that can be ‘run’ on a computer

• it is the physical parts of the computer system – the parts that you can touch and see

• it is a set of devices

• it is  a mathematical parts of a computer system

• it is  a set of circuits

What is Hardware?

• it is a database

• it is a collection of instructions that can be ‘run’ on a computer

• it is the physical parts of the computer system – the parts that you can  touch  and  see

• it is  a mathematical parts of a computer system

• it is  a set of programms

it  is not  an example of Software

• MS Word

• MS Excel

• computer game

• Keyboard

• Pascal

it  is not  an example of Hardware

• computer game

• mouse

• motheboard

• RAM

• ROM

It researches the design  and use of computer technology, focusing particularly on the interface between users and computers

• user –computer interaction

• human –hardware interaction

• human –computer interaction

• software –hardware interaction

• human –computer interface

The definition of mean.

• Sum of first four values divided by the number of cases.

• Sum of the values divided by the first value.

• The middle of order sample.

• Sum of the values divided by the number of cases.

• Value that occurs most frequently.

What median represents?

• The biggest value.

• The middle of ordered sample.

• Most frequently appears value.

• Sum of the values divided by the number of cases.

• Sum of first four values divided by the number of cases.