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AcaDec 2023_24 > Social Science Section 3 > Flashcards

Social Science Section 3 Flashcards

1
Q

William’s tube based memory was replaced by

A

core memory

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2
Q

How many locations used the SABRE system?

A

54

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3
Q

Travel agents used what to input information into the SABRE?

A

keyboard terminals

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4
Q

What system gave the world the first interactive computing>

A

SABRE

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5
Q

What is time sharing?

A

Multiple keyboard terminals could be connected to central computer

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6
Q

What company was the primary forces in the reduction in computer costs

A

Digital Equipment Corporation

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7
Q

How large was the PDP

A

size of a small refridgerator

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8
Q

Who developed a timesharing system called CTSS?

A

Fernando Corbato

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9
Q

What does SAGE stand for?

A

Semi-Automated Ground Environment (air defense system)

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10
Q

By what year were all major airlines using interactive computerized systems?

A

1970s

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11
Q

What company used experience gained to create a system for the airlines?

A

IBM

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12
Q

How was the first version of UNIX written

A

It was written in assembly language

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13
Q

What did Thompson and Ritchie do to improve UNIX for the PDP-11?

A

Ritchie wrote a new programming language called C

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14
Q

How is C language best described compared to FORTRAN and COBOL?

A

C is much more minimalistic

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15
Q

How did AT&T become involved with UNIX?

A

They sold copies of UNIX to universities at a lower cost

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16
Q

Why couldn’t AT&T commercialize UNIX

A

They were a government-controlled monopoly that wasn’t allowed to enter into any venture not related to Telephony

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17
Q

Why were universities able to improve UNIX source code?

A

AT&T had a “flexible license” that allowed it.

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18
Q

What was the main reason that UNIX entered the workforce?

A

University students were well trained in UNIX, and wanted to keep working with it after university

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19
Q

Who began modern networking?

A

J. C. R. Licklider

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20
Q

What did Licklider do before networking?

A

He was the IPTO at ARPA

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21
Q

Why did Licklider want to network computers together?

A

He hoped that researchers would be able to use the computers more economically

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22
Q

What id the key difference between the ARPANET and earlier time sharing services?

A

The various computers in the ARPANET could be from different vendors and operating systems.

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23
Q

What is another name for the IPM?

A

Node

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24
Q

Define the function of an IPM

A

The IPM served as an intermediary between the host (the computer in the ARPANET) computer and the rest of the network.

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25
Q

What is store and forward packet switching?

A

Major city were connected through telegraph lines with smaller offices nearby. The message would reach one office be printed, stored until the operator was ready to forward it on; that’s were the term “store and forward” came from. So the lines weren’t monopolize by a single user, the messages were broke up into small chunks called packets. Each packet would contain the address of its destination computer. When the package reached the node, the node would check the address and forward it on as needed; that is were packet switching came from. When all the packages reached their destination node, it would re-assemble.

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26
Q

What does TCP/IP stands for?

A

Transmission Control Protocol/Internet Protocol

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27
Q

What were the first four universities that has nodes in the ARPANET?

A

University of California at Los Angeles, the University of California at Santa Barbara, Stanford Research Institute, and the University of Utah.

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28
Q

How many sites were connected to the ARPANET by the end of the 1970s?

A

Over one hundred sites

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29
Q

What is a protocol

A

A protocol is an agreement on how data ought to be formatted, encoded, and transmitted.

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30
Q

What was IMP replaced with?

A

IMP was eliminated with the introduction of TCP/IP.

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31
Q

What could the TCP/IP do?

A

Software implementing TCP/IP was written for various computer models. This allowed each host to connect to the ARPANET directly, rather than through an IMP.

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32
Q

Since they no longer had access they no longer had access to the General Electric mainframe, Thompson and Richie used what PDP to build their new operating system?

A

PDP-7 (which was obsolete by 1969)

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33
Q

How were Thompson and Ritchie able to convince Bell Labs to continue funding the project?

A

the first version of UNIX was successful enough to convince Bell Labs to purchase PDP-11 and instead of saying that they were building a new machine (since Multics recently failed), they said they were building tools to be used by clerks within Bell Labs

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34
Q

How did writing UNIX in C programming, make it portable?

A

it could run on other computer models that had a C compiler

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35
Q

What is BSD Unix?

A

short for Berkley Standard Distribution– made at the University of California at Berkley

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36
Q

True or False? Unix invented the idea of networking computers.

A

False, they only accelerated it

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37
Q

What was Licklider’s goal when it came to networking expensive computers together?

A

research could use them more economically and users would have access to other computers on the network to reduce the need for specialized facilities

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38
Q

What is one key difference between ARPANET and earlier timesharing machines like CTSS and BASIC?

A

had various computers (aka hosts) that were from different vendors and ran a variety of operating systems (Dartmouth BASIC and CTSS were designed around only one type of computer)

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39
Q

What was one of the motivating reasons for people to purchase home computers in the late 1970s’ and early 1908s’ ?

A

Computer games

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40
Q

What made personal computers suitable for video games?

A

small size, low cost, and interactive video screens

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41
Q

What were the first video games to appear for PC?

A

Adventure and Zork

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42
Q

How were the first videogames different from modern day games, such as those like Adventure and Zork?

A

text-based games, and were written for mini computers

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43
Q

PacMan and Centipede began as what?

A

dedicated arcade consoles

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44
Q

True or False? The invention of computers for PCs’ was so fast and innovated that people immediately figured out that they should be written for existing computers.

A

False; most of the earliest computers were custom computers in and of themselves

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45
Q

Who created Pong?

A

Atari in 1971

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46
Q

What was the first successful coin-operated video game console?

A

Pong

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47
Q

How was Pong written?

A

by wiring several microchips together

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48
Q

Breakout created using…

A

custom hardware

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49
Q

Pong is most similar to programming what?

A

the ENIAC

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50
Q

In the 1970s’, game designers realized that they could write more and better games in less time using what instead of what?

A

software running on commodity hardware, creating a custom set for each game

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51
Q

Although it was a gaming company, Atari began to create what in 1979?

A

its own line of personal computers, it became a general-purpose computing company as well

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52
Q

What four companies were designed primarily for home and educational use?

A

The Radio Shack, Atari, Commodore, and Apple

53
Q

When was the first version of VisiCalc release?

A

in 1979

54
Q

What is a killer app?

A

A computer application so compelling that users want to buy the computer just to run the program.

55
Q

What computer did Bricklin chose to create VisiCalc on?

A

Apple II

56
Q

What is world processing?

A

A type of software application that facilitates the preparation, editing, and printing of documents.

57
Q

What were the first commercially successful word processors?

A

the Wang OIS

58
Q

What did the PARC team call their computer?

A

the Alto
- named after the city they were located in

59
Q

Who created the first Graphical User Interface?

A

PARC team

60
Q

What did the invention of the microprocessor help do?

A

Allow for a wave of cheaper computers

61
Q

What did Norm Abrasom create?

A

ALOHAnet

62
Q

What was ALOHAnet?

A

a system where packets are transferred via radio signals rather than telephone lines

63
Q

What could the ALTO do that other computers could not at the time?

A

display both text and pictures at the same time

64
Q

What did the PARC team develop that made designing software easier?

A

Smalltalk

65
Q

Smalltalk uses what type of programming?

A

object oriented programming

66
Q

When did Bell Labs withdraw from the Multics System

A

1969

67
Q

why did thompson and ritchie downplay the fact that they were building a new operating system

A

The failure of Multics was still fresh on the mind of supervisors

68
Q

Ritchie invented a new programing language called?

A

C

69
Q

C had a minimalist design compared to

A

FORTRAN and COBOL

70
Q

Writing Unix in C made it…

A

portable (from system to system)

71
Q

Making it portable meant it could

A

Run on other models besides the PD-11

72
Q

Who was the owner if Bell Labs

A

AT&T

73
Q

Who was the owner if Bell Labs

A

Monopoly

74
Q

AT&T could not enter another industry, however, they sold copies of Unix to…

A

Universities at a low cost

75
Q

Some of the most popular PC games included

A

Pac Man and Centipede

76
Q

Some of the earliest video games were written for…

A

Custom Computers

77
Q

What was VisiCalc

A

The first computerized spreadsheet

78
Q

What launched personal computers into the business world

A

Visicalc

79
Q

What today are considered killer apps

A

Word processors and spreadsheets

80
Q

Wang OIS included

A

a keyboard, a high-resolution monitor, and a microprocessor that allowed it to process commands locally

81
Q

Wang OIS stored documents on

A

a centralized serv

82
Q

What inspired the Apple Lisa

A

Xerox PARC’s Alto

83
Q

What was the issue with the Apple Lisa

A

Far too expensive for most home users

84
Q

What was the Macintosh

A

An affordable computer based on the PARC’s GUI design

85
Q

Who was in charge of Project Whirlwind?

A

The US Air Force

86
Q

What was the purpose of Project Whirlwind?

A

to create flight simulators for training pilots

87
Q

Who was put in charge of Project Whirlwind?

A

Jay Forrester

88
Q

What did Forrester determine regarding the speed of the simulators

A

they needed technology from the new ENIAC

89
Q

What did the goal of Project Whirlwind become?

A

to create the fastest computer

90
Q

How was Project Whirlwind’s funding saved?

A

Because there was word of the Soviet Union building nuclear weapons

91
Q

What was the US military’s goal in saving Project Whirlwind?

A

to hopefully get a computer that was good enough for the US defense system

92
Q

What did core memory replace on the Whirlwind project

A

tube-based memory

93
Q

What kind of display did Whirlwind have?

A

A cathode-ray tube one

94
Q

When was SAGE decommissioned?

A

Early 1980s

95
Q

What does SABRE stand for

A

Semi-automatic Business Research Environment

96
Q

what 2 companies shared the idea of timesharing?

A

SAGE and SABRE

97
Q

what is timesharing?

A

there is one central computer that multiple people can run their keyboards off

98
Q

who lead a team at MIT that built a timesharing
system called CTSS?

A

Fernando Corbató

99
Q

what dose CTSS stand for?

A

compatible time-sharing system

100
Q

when was CTSS built?

A

1963

101
Q

what companies worked together to create a timesharing operation to replace CTSS?

A

General Electric, MIT, and AT&T Bell Labs

102
Q

Multics was made to replace what operating systems?

A

CTSS

103
Q

what is the second-system effect?

A

“the general tendency is to over-design the second system, using all the ideas and frills that were cautiously sidetracked on the first one.”

104
Q

what year did bell labs withdraw from Multics?

A

1969

105
Q

why did bell labs withdraw from Multics?

A

Stung by the difficulties and delays of the Multics project, Bell Labs withdrew from the project in 1969,

106
Q

what was Robert taylor’s previous job?

A

he was a former director at ARPA

107
Q

why was Robert taylor hired?

A

manage the Palo Alto Research Center, or PARC.

108
Q

who invented ALOHAnet?

A

Norm Abramson

109
Q

what is Norm Abramson profession?

A

engineer and computer scientist

110
Q

in the mid 20th century Xerox was the leader in what market?

A

copy machine industry

111
Q

what lead to Xerox failure at it’s peak?

A

patents expired

112
Q

what year did Xerox’s patents expire?

A

1970s

113
Q

what is a bitmapped?

A

could display both text and pictures simultaneously.

114
Q

what did the alto have in addition to a keyboard?

A

a mouse

115
Q

how many buttons did the mouse on the Alto have?

A

3 buttons

116
Q

Why were people motivated to buy home computers in the ’70s and ’80s?

A

Video Games

117
Q

Why couldn’t basic people play games on the PDP11?

A

Because the basic person didn’t have a PDP11

118
Q

Why did Video Games flourish on home computers?

A

Home computers were easy and less expensive

119
Q

What were some of the earliest video games to come out on home computers?

A

Adventure and Zork

120
Q

What were some of the popular more complex games for the home computers?

A

Pac Man and Centipede

121
Q

Why was PONG special?

A

It was not written in software but by wiring microchips together

122
Q

How did Atari branch out in ‘79?

A

They designed their own home computers and such

123
Q

What was Visicalc?

A

Computerized Spreadsheet. Like this one!

124
Q

Who was Co-Creator of Visicalc?

A

Daniel Bricklin

125
Q

Why was Visicalc considered a “Killer App”?

A

It was instantly popular and hordes of people bought Apple IIs just to use it.

126
Q

Why were Word Processors slower to catch on than spreadsheets?

A

Computers had limited text capabilities.

127
Q

So how did Word Processors become a thing?

A

They had to become computers in and of themselves

128
Q

Where was Bill Gates on the Microsoft Staff Picture on December 7, 1978?

A

Front left.

129
Q
A

AcaDec 2023_24 (25 decks)

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