Complete Question:
The first electric, general-purpose computer, ENIAC, was programmed by?
Group of answer choices.
A. Calculating algorithms on paper.
B. Entering code directly into the computer.
C. Flipping switches by hand.
D. Using MS-DOS as the operating system.
Answer:
C. Flipping switches by hand.
Explanation:
The first electric, general-purpose computer, ENIAC, was programmed by flipping switches by hand.
ENIAC is an acronym for Electronic Numerical Integrator and Computer, it was developed in 1945 by John Mauchly and J. Presber Eckert. ENIAC was used for solving numerical problems or calculation-related tasks by the process of reprogramming.
In order to give the ENIAC a series of machine instructions to follow in the execution of a task, the programmers had to undergo the cumbersome procedure of connecting, removing, reconnecting cables and flipping switches by hand because data couldn't be stored in memory.
Answer:
Option(d) is the correct answer to the given question
Explanation:
The main advantage of slab allocator is that There is no memory is lost because of the fragmentation this is due to some driver data framework has a cache memory that is connected to it.
- In the slab allocator the resources are repeatedly assigned or free to handle them. It is a type of memory management scheme that is used for distributing resources to the memory.
- All the other options are not considered as advantages of Slab allocator that's why they are an incorrect options.
Keira is using the software development life cycle to create a new app. She has the pseudocode for her program. The next stage for Keira is CODING.
Explanation :
- SDLC or the Software Development Life Cycle is a process that produces software with the highest quality and lowest cost in the shortest time. SDLC includes a detailed plan for how to develop, alter, maintain, and replace a software system.
- SDLC involves several distinct stages, including planning, design, building, testing, and deployment. Popular SDLC models include the waterfall model, spiral model, and Agile model.
- The steps of the SDLC are given below :
- Identify the current problems. “What don’t we want?”
- Plan. “What do we want?”
- Design. “How will we get what we want?”
- Build. “Let’s create what we want.” This SDLC stage develops the software by generating all the actual code. If the previous steps have been followed with attention to detail, this is actually the least complicated step.
- Build is the phase which Keira should move onto in the SDLC
- SDLC done right can allow the highest level of management control and documentation. Developers understand what they should build and why. All parties agree on the goal up front and see a clear plan for arriving at that goal. Everyone understands the costs and resources required.
Explanation:
People use freeware software because it is available free of cost and it can be distributed free of cost, that is why it is called FREEware.
Freeware software:
Adobe PDF
yahoo messenger
Go.ogle Talk
MSN messenger
People use shareware software because it helps them to know about the product more before buying it and this software is available free of cost.
Shareware software:
Adobe acrobat 8 professional
Winzip
Getright
