COMPUTER Flashcards

(59 cards)

1
Q

a machine that can be programmed automatically, carry out sequences of arithmetic or logical operations, an electronic device that manipulates information, or data.

A

Computer

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2
Q

5 Basic Functions of Computer

A

Store
Output
Input
Analyze
Process

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3
Q

Earliest calculating tool, was invented in ________, and is still used in some parts of Asia

A

Abacus

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4
Q

Older in Abacus. Done is stone tablet

A

Caligraphy

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5
Q

Two mathematicians that built mechanical calculators using pegged wheels that could performed the four basic arithmetic function

A

Blaise Pascal and Gottfried Leibniz

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6
Q

Invented by Blaise Pascal. What is its function? Problem?

A

Pascaline - Addition & Subtraction
Problem - Highly Expensive

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7
Q

Invented by Gottfried Leibniz. What is its function?

A

Step Reckoner - Addition, Subtraction, Multiplication, Division

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8
Q

TOMOGRAPHY means

A

Tomo - slices
Graphy - image

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9
Q

Father of Computer

A

Charles Babbage

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10
Q

designed a tabulating machine to record census data in 1890.

A

Herman Hollerith

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11
Q

The tabulating machine stored information as __________ that was interpreted by machines with _______.

A

holes on cards; electrical sensors

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12
Q

designed an analytical engine that performed general calculations automatically

A

Charles Babbage

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13
Q

First electronic digital computing device

A

ABC Computer

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14
Q

built the first digital electronic computer

A

John Atansoff and Clifford Berry

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15
Q

ABC computer was designed with a specific purpose to solve systems of simultaneous up to ___________.

A

29 linear equations

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16
Q

First fully operational working computer

A

Colossus

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17
Q

Colossus was designed to _________

A

crack encrytped German military codes

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18
Q

When was Colossus build?

A

December 1943

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19
Q

The first general purpose electronic computer

A

ENIAC

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20
Q

ENIAC contained more than _________ that failed at an average rate of one every ______

A

18, 000 vacuum tubes; \7 minutes

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21
Q

The first general purpose electronic computer developed in the year _______, at __________ by at a cost of

A

1946; University of Pennsylvania; 500, 000 dollars

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22
Q

First generation computer and year?

A

Vacuum Tube (1951 - 1958)

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23
Q

Second generation computer and year?

A

Transistors (1959 - 1964)

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24
Q

Third generation computer and year?

A

Integrated Circuits (1965 - 1970)

25
Fourth generation computer and year?
Microprocessor (1971 - Present)
26
The brainstem of the computer
Microprocessor
27
device that input information into the computer
Input devices
28
output information from the computer
Output devices
29
Examples of Output and Input devices
Input - Mouse, Keyboard, scanner, DC Output - Speaker, Monitor, Screen
30
Includes all parts of Computer
Computer Hardware
31
Includes all programs that are installed or instructions for completing tasks
Computer Software
32
Also called as the microprocessor or brain of computer. Usually measured in ______
Central Processing Unit
33
5 brands of processors
Pentium Celeron MAC AMD Cyrix
34
Contains millions of transistors and are small pieces of semi conducting materials (silicon)
Computer Chip
35
Mechanical storage device located internally
Hard drive
36
CD ROM
Compact Disk Read Only Memory
37
Optical device read by diode laser
CD ROM
38
Magnetic storage device for small amounts of data ( _______ )
Floppy Diskette - 1.44 mb
39
RAM
Random Access Memory
40
stores data that is processing. This type of data is erased when the computer is turned off.
RAM
41
Contains special instruction for the computer to operate
ROM
42
Increases the speed of the processor by recording and anticipating instructions
Cache Memory
43
Sets of images and icons seen on the desktop used to operate a program
GUI
44
small pictures that represent files, commands, or windows
Icons
45
video memory enhances the refreshment rate of the image
VRAM
46
have chipsets that can increase the speed of video display
Video cards
47
Interface between the computer and another peripheral device such as disk drive, mouse, printer
Ports
48
network usually in the same company / building. It is connected via ________ or ________
LAN telephone lines; radiowaves
49
system of LAN connect workstations
WAN
50
rate at which information is transferred in a communication channel
Baud rate
51
how much information can be carried in a given period of time
Bandwidth
52
how many bytes? 1 KB 1 MB 1 GB 1 TB
1 KB - 1042 bytes 1 MB - 1024 kilobytes / 1 million 1 GB - 1024 megabytes / 1 billion 1 TB - 1024 gigabytes / 1 trillion
53
composed of 8 bits
byte
54
standard unit of measurement
byte
55
ability to execute more than 1 task at the same time. Only 1 CPU is used
Multitasking
56
more than one CPU is use to complete a task
Multiprocessing
57
include sound, pictures, video, text, and hypertext to create presentations
Multimedia software programs
58
59