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2 years ago

What was the first computer

Computers and Technology

1 answer:

rodikova [14]2 years ago

7 0

Answer:

This is a nuanced question. Define "computer".

Explanation:

It depends. There's not really a consensus on whether it's ABC or Programma 101. The ABC (Atanasoff-Berry Computer) came out in 1942. The Programma 101 came out in 1964.

The ABC was a huge vacuum tube contraption that weighed the same as three or four people. There was a design very similar to the ABC (I think it was called EINAC) but it was basically a copy and the patent for it was thrown out. The ABC wasn't patented.

If this is multiple choice then the answer is obvious. If not you're technically right either way. If it's Atari or something I will actually scream.

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3 years ago

Answer for 3.4.8 rectangle code HS

tigry1 [53]

Answer:

i think Make variables to represent the length and width of a rectangle, called length

and width

, respectively. You should set length

to 10 and width

to 5.

Then, write some mathematical expressions to computer the area and perimeter of the rectangle and save these values inside variables named area and perimeter

.Use print

statements to display the area and perimeter of the rectangle.

Your output should print the area on the first line and the perimeter on the second, like this:

50 30 Rectangle Area Formula:

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Explanation:

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2 years ago

If i don't update my computer what threat does my computer face?

Nadusha1986 [10]

Hey there! Hello!

Computer updates, especially smaller security updates, contain security information for new bugs, malware, viruses, etc. that have been written since your last update. So many of these are written for computers at any given time, meaning that keeping your computer updated is a significant step in keeping your computer's defense systems working. Paired up with legit anti-malware, virus protection software, good computer knowledge, and common sense, your computer can remain very safe from these viruses.

Otherwise, there might be some bug or irregularity within your computer's system itself that was accidentally released an update or two ago by the creators of your computer's software, which may also pose a threat for your computer system. Updating your computer can most likely fix problems like these. But, more commonly, they just keep your computer up to date on the vicious computer threats that are now available for it since the previous update.

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8 0

3 years ago

You are called to assist in troubleshooting a network problem that has occurred soon after a significant IPv6 implementation. So

HACTEHA [7]

Answer:i dont kowe

Explanation:

5 0

2 years ago

In a batch operating system, three jobs are submitted for execution. Each job involves an I/O activity, CPU time and another I/O

Ilia_Sergeevich [38]

Answer:

a) CPU utilization for uniprogramming system = 18.2%

b) CPU utilization for multiprogramming system = 41.379%

Explanation:

IO time = total time – CPU time

For JOB 1

CPU time = 3ms ,

total time= 23ms

IO time = 23-3 = 20ms ,

For JOB 2

CPU time =5ms

total = 29ms

IO time = 29-5 = 24ms

For JOB 3

CPU time = 4ms

total = 14ms

IO time = 14-10 =10ms

1.) In uniprogramming system, operations are performed sequentially

CPU utilization=total CPU time / total real time

CPU utilization =(3+5+4) / (23+29+14)

CPU utilization =0.182 or 18.2%

2) In multiprogramming system, jobs wait for the CPU to get free while performing IO operations concurrently

steps followed by the os

1. IO for 1st job at 0ms

2. IO for 2nd job at 0ms

3. IO for 3rd job at 0ms

4. CPU time for 3rd job at 5ms

5. Next IO job for 3rd job at 9ms END at 14ms

6. CPU time for 1st job at 9ms

7. Next IO job for 1st job at 14ms END at 23ms

8. CPU time for 2nd job at 14ms

9. Next IO job for 2nd job at 15ms END at 29ms

CPU time is 3+5+4 =12ms

Total execution time = 29ms

CPU utilization = 12*100/29= 41.379%

5 0

2 years ago