Unit 1 Study Guide

Question 1

Which of the following are computer hardware components?
A. input devices
B. Output devices
C. Main memory
D. Secondary memory
E.  CPU

Answer 1

All of the above

Question 2

Computer software is composed of 
A. Compiler
B. Programs
C. Decimal data
D. Operating system

Answer 2

A-B-D

Question 3

List computer input devices

Answer 3

Mouse, keyboard, digital pen, trackball, trackpad, voice control, touch control

Question 4

List computer output devices

Answer 4

Printer, monitor, speakers, USB drive, disc, CD, DVD

Question 5

What are main memory, secondary memory and the CPU?

Answer 5

Main memory -
Secondary memory -
CPU - central processor unit. Brains of the computer that processes data and commands

Question 6

How do programs, the compiler and the operating system interact?

Answer 6

?

Question 7

What is single line versus multiple line?

Answer 7

?

Question 8

What is output by the following?
Print (''she sells |nseashells")
Print ("by the seashore")
A. She sells seashells by the seashore
B. She sells
     Seashells
     By the seashore
C. She sells seashells
     By the seashore

Answer 8

C. She sells seashells

By the seashore

Question 9

\_\_\_\_\_\_\_\_\_\_\_ is what we use to communicate day to day.  
A. Natural language
B. Algorithms
C. Formal language
D. Code

Answer 9

A. Natural language

Question 10

What is the CPU?
A. Central Processing Unit. Brains of the computer.
B. Command Perhiperhal unit. Handles all input/output devices
C. Computer Programming Unit. Stores the program commands
D. Central Programming Unit. Translates high level language into code

Answer 10

A. Central Processing Unit

Question 11

What is output by.   Print ("/\\")
                                   Print ("\\/")
A. /\\\\/
B. /\\
     \\/
C. /\\ \/

Answer 11

B. /\

\/

Question 12

The program that runs on a computer are called
A. Concatenation
B. Browser
C. Hardware
D. Software

Answer 12

D. Software

Question 13

What is output by the following? Assume user enters Sally & John. X = input (“What is your name?”)
Y = input (“What is your friend’s name?”)
Print (“Hi” + x “and” y)
A. Hi x and y
B. Hi Sally and John
C. Hi + Sally + and + John
D. Hi + x + and + y

Answer 13

B. Hi Sally and John

Question 14

Instructions written in code that computers follow are called:
A. Input
B. Compilers
C. Programs
D. Operating systems

Answer 14

C. Programs

Question 15

Which of these is NOT a valid variable name?
A. Appointment_hour
B. %information
C. FirstName
D. Grade3

Answer 15

B. %information

Question 16

A name given to a spot in memory is called:
A. Input
B. Output
C.  Variable
D. Print

Answer 16

C. Variable

Question 17

Which of the following is NOT an output device?
A. Screen
B. Speakers
C. Camera 
D. Printer

Answer 17

C. Camera

Question 18

_______________ means a series of interconnected things or events such as instructions in computer code.

Answer 18

Concatenation

Question 19

___________ are a linear sequence of data or commands

Answer 19

Strings

Question 20

What does \ mean? It is called an _________ character.

Answer 20

Escape character. Tells the compiler to treat the next character differently. Such as \n or \t or new line or TAB

Question 21

\n designates what?

Answer 21

\n - new line starts

Question 22

What is the compiler?

Answer 22

Software program that converts instructions into machine code or lower level form so that they can be read and executed by a computer.

Question 23

Software that supports basic computer functions such as executing applications, controlling peripherals, and scheduling tasks is called ____________

Answer 23

Operating system

Question 24

Codes instructions that enable a computer to perform particular tasks are called:
A. Operating system
B. Compiler
C. Programs
D. Typecasting

Answer 24

C. Programs

Question 25

Variable names can contain spaces. T/F Variable names must start with a letter or the characters @,#,$, %. T/F

Answer 25

F - no spaces F. - Letter or @, #, $ NOT %