Answer:
a. True
Explanation:
A computer can be defined as an electronic device that is capable of receiving of data in its raw form as input and processes these data into information that could be used by an end user. Computers can be classified on the basis of their size and capacity as follows;
I. Supercomputers.
II. Mainframe computers.
III. Mini computers.
IV. Micro computers.
Mainframe computers were developed and introduced in the early 1950s.
Mainframe computers are specifically designed to be used for performing multi-programming because they are high-performance computers with the ability to handle multiple users. As a result, it simply means that mainframe computers can be used to effectively and efficiently perform the work of over one hundred (100) users at a time on the computer. Some examples of mainframe computers include the following; IBM Es000 series, CDC 6600 and ICL39 Series.
Furthermore, mainframe computers are mostly or commonly used by large companies, business firms or governmental institutions for performing various complex tasks such as census, financial transactions, e-commerce, data sequencing, enterprise resource planning, etc.
Answer:
A
Explanation:
Using hashes is preferred because encrypted IOS passwords can be easily decrypted.
Answer:
The first thing should Keisha does is determine the purpose of the presentation.
Explanation:
If we are giving any presentation then firstly we should determine the purpose of our presentation.
There are typical reasons for giving any presentation such as:
- Alerting
- Persuading
- Inspiring
- Enjoyable
By clearly defining the purpose you need to capture the attention of your audience and maintain their interest thoroughly across the oral presentation. Three key elements in any oral presentation process include:
- Planning
- Writing
- Completion
Solution:
Running computer programs and their data are stored in Rom.
ROM is "built-in" computer memory containing data that normally can only be read, not written to. ROM contains the programming that allows your computer to be "booted up" or regenerated each time you turn it on. Unlike a computer's random access memory (RAM), the data in ROM is not lost when the computer power is turned off. The ROM is sustained by a small long-life battery in your computer.
Answer:
Sorted array will be:-
3 5 5 9
Explanation:
In Selection Sort algorithm it sorts the array by repeatedly finds the minimum in the array form the array that is unsorted and swaps it with the value at the first position.
The unsorted array:- 5 3 9 5
In first iteration
minimum is 3.
3 will be swapped with 5.
Now the array is 3 5 9 5
sorted array 3
In second iteration
unsorted array is 5 9 5
sorted array 3 5
and the minimum from it is 5
No swapping will occur.
In third iteration
unsorted array is 9 5
minimum is 5
sorted array 3 5 5
swap it with 9.
Now the array is sorted.
3 5 5 9
