Test 1

Question 0

3 secondary storage devices?

Answer 0

Flashdrive, memory card, CD ROM, hard drive

Question 1

In 1947…

Answer 1

Transistors were invented

Question 2

How many bits r in a megabyte?

Answer 2

Million

Question 3

How did early computers store 1 bit of data?

Answer 3

Vacuum Tubes, Punch Cards

Question 4

3 primary storage devices?

Answer 4

RAM=temporary storage
ROM=permanent startup info
Hard Drive=large permanent storage

Question 5

How many bits r in a byte?

Answer 5

8

Question 7

Hardware

Answer 7

The physical/touchable parts of a computer system

Question 9

Syntax vs Semantics

Answer 9

Syntax=structure

Semantics=meaning

Question 10

What # system do humans use?

Answer 10

Base-10 (decimal)

Question 10

What # system do computers use?

Answer 10

Base-2 (Binary)

Question 11

How many bits r in a kilobyte?

Answer 11

1000

Question 12

COBOL

Answer 12

Language created by Grace Hopper for the business community/armed forces

Question 13

How many bits r in a gigabyte?

Answer 13

Billion

Question 14

RAM

Answer 14

Temporary storage/fresh start every time comp is turned on

Question 16

ROM

Answer 16

Permanent storage/startup

Question 16

JAVA

Answer 16

Platform independent/compiler translates it to Byte Code

Question 17

ENIAC

Answer 17

First fully digital computer w/ capability to be programmed

Question 17

Translates a program 1 line at a time?

Answer 17

Interpreter

Question 18

What language is understood by comp?

Answer 18

Machine language/Binary code

Question 18

What language is understood by humans?

Answer 18

High level languages/Source code

Question 21

2 categories of software?

Answer 21

Application= word excel etc
System= iOS, windows (comes w/ computer)

Question 22

What is the machine language version of source program?

Answer 22

Object program/Machine/Binary code (1 and 0’s)

Question 24

CPU

Answer 24

Central processing unit composed of transistors etched into a silicon chip “brains/heart” of computer which executes commands

Question 25

Name 3 Input devices?

Answer 25

Keyboard, mouse, scanner

Question 26

Characteristics of early computers?

Answer 26

Big, slow, low memory, had to physically program/walk inside

Question 27

What piece of hardware connects all pieces of computer together?

Answer 27

Motherboard

Question 28

Characteristics of modern computers?

Answer 28

Small, fast, large memory

Question 29

Software

Answer 29

The program instructions that make the computer do something (Java

Question 29

Translates an entire program?

Answer 29

Compiler

Question 30

Vacuum tubes

Answer 30

On/off, airless tubes that control electrode flow in early computers, replaced by transistors

Question 30

4 main functions of a computer system/examples?

Answer 30

storage (disk/CD) processing (RAM/CPU) output (monitor/printer) input (keyboard)

Question 32

Network

Answer 32

Hardware/Software data communication system

Question 32

What are computer gates?

Answer 32

Turn on/off flow of circuit electricity like a light switch

Question 35

Name 3 Output devices?

Answer 35

Monitor, printer, speakers

Question 35

Benefits of computers over humans?

Answer 35

Faster, more accurate, better memory

Question 35

What allows data to be passed throughout computer?

Answer 35

Buses

Question 36

Program class name and file name for Test05?

Answer 36

Test05.class Test05.java

Question 37

Every program must start with

Answer 37

public class (some class name)

Question 38

Variable types

Answer 38

int byte double char NOT STRING