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2 years ago

Who develop punch card

Computers and Technology

1 answer:

monitta2 years ago

7 0

Explanation:

The standard punch card (for computers) was invented and developed by Herman Hollerith. But the idea of punch cards was already long invented, used to control Jacquard looms.

Jacquard looms were looms that used punch cards to control the pattern a loom weaves.

The idea of punch cards in Jacquard looms also influenced Charles Babbage, who decided to use punched cards to control the sequence of computations in his proposed analytical engine. Unlike Hollerith's cards of 50 years later, which were handled in decks like playing cards, Babbage's punched cards were to be strung together.

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Convert the following hexadecimal numbers to decimal: (a) FF (b) F0A2 (c) 0F100 (d) 100

Hatshy [7]

Answer:

a) 255

b) 61602

Explanation:

You need to understand the decimal equivalent of hexadecimal numbers, <em>from 0 to 9 numbers are represented the same way, from 10 to 15 we use the alphabet, meaning 10 equals A in hexadecimal base, 11-B, 12-C, 13-D, 14-E, and 15-F.</em>

For your first exercise you'll enumerate the number's positions fromright to lef begining with 0:

a. F F

position 1 0

Now you'll multiply your hexadecimal number (using the decimal equivalent for your letters) for the base (16) elevated to the number of the position:

$F*16^{0}=15*1=15\\F*16^{1}=15*16=240$

Finally, you'll add your results:

240+15=255

FF=255

b. F 0 A 2

position 3 2 1 0

$2*16^{0}=2*1=2\\A*16^{1}=10*16=160\\0*16^{2}=0*256=0\\F*16^{3}=16*4096=61440\\\\2+160+0+61440=61602\\$

F0A2=61602

c. F 1 0 0

position 3 2 1 0

$0*16^{0}=0*1=0\\0*16^{1}=0*16=0\\1*16^{2}=1*256=256\\F*16^{3}=16*4096=61440\\0+0+256+61440=61696\\$

0F100=61696

d. 1 0 0

position 2 1 0

$0*16^{0}=0*1=0\\0*16^{1}=0*16=0\\1*16^{2}=1*256=256\\\\0+0+256=256\\$

100=256

I hope you find this information useful! Good luck!

8 0

3 years ago

File

Degger [83]

Explanation:

formula should add cells D3:07.

Empanadas & More

In cell D9 create a formula that calculates the total after a 10% disco

you need help understanding how to take a percentage off of a total

LINE TOTAL

2 MENU ITEM

3 Empanadas: Buffalo Chicken

4 Empanadas: Braised Short Rib

5 Empanadas: Fig and Goat Cheese

6 Sides: Black beans and rice

UNIT PRICE

$2.98

$3.75

$1.98

QUANTITY

TAX

TOTAL

6 0

3 years ago

A person appreciation of a food taste and flavor is commonly referred to as what

Nimfa-mama [501]

Answer:

Palate - A person’s appreciation of taste and flavor, especially when sophisticated and discriminating Eclectic - Deriving ideas, style, or taste from a broad and diverse range of sources Piquancy - A pleasantly sharp and appetizing flavor

6 0

2 years ago

A program written in a(n) procedural language consists of sequences of statements that manipulate data items. __________________

Alenkasestr [34]

Answer:

true.

Explanation:

According to my research on information technology, I can say that based on the information provided within the question the statement is completely true. Procedural programming is a widely used paradigm that basically gives the program a set of routines or specifications, and the program mixes and matches them as they continuously repeat the process. It is used in many areas, including video game development.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

7 0

3 years ago

How can you different between standard and protocol?

Verizon [17]

A standard is something that is always at a certain time of the day and is scheduled the same. A protocol takes priority of anything and everything else you work on.

6 0

2 years ago

Who develop punch card​

Who develop punch card