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3241004551 [841]
3 years ago
6

Semiconductor memory is used mainly for primary storage even with its high cost. In another hand, the magnetic tape is the cheap

est storage media and it is commonly preferred only as backup storage! Use your own words to discuss how the storage cost, speed and capacity trade-offs can affect the choice of storage media
Computers and Technology
1 answer:
vodomira [7]3 years ago
3 0
<span>In general you want to use the cheapest storage medium who's speed is compatible with the function it needs to perform. For active storage that's handled while running programs, you need memory whose speed is closely matched to the processor speed. And that would be the rather expensive semiconductor memory which is close to ideal for the task. But semiconductor memory has the disadvantage of being expensive and it loses the values stored when power is lost. So slower, persistent storage is used such as SSD (Solid State Drives) and hard disks. That media is cheaper, but slower, but still fast enough to handle tasks such as loading programs and data into memory for execution, or storing data generated by programs to persistent storage. But as with all man made things, disasters happen. Computers break down, hard disks crash, floods and fires happen, etc., and as a result data is lost. So we make backups. Backups have to have a lot of storage and they have to be cheap. But they don't need rapid access, you can start at the beginning and read (or write) all the way to the end. And for that purpose, magnetic tape is ideal. Magnetic tape is actually quite fast when you're simply streaming a continuous stream of data without any need to randomly access any piece of that data. And it's cheap, so you're willing to make a back up copy of your system and store that backup off site so a single disaster won't destroy both the primary system and the backup.</span>
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A rootkit is software and file folders that are hidden from view and permit viruses, spyware, and malware to be installed on a P
Zanzabum

Answer:

TRUE

Explanation:

A rootkit is a collection of computer software, typically malicious, that is designed to grant an unauthorized user access to a computer or certain programs. Once a rootkit is installed, it is easy to mask its presence, so an attacker can maintain privileged access while remaining undetected.

Rootkit detection is difficult because a rootkit maybe able to subvert the software that is intended to find it.

Rootkits work by using a process called modification (the changing of user account permissions and security).

Rootkits are not malware themselves, but rather a process used to deploy malware on a target.

Therefore, it is TRUE that a rootkit is software and file folders that are hidden from view and permit viruses, spyware, and malware to be installed on a PC without the knowledge or consent of a user.

3 0
3 years ago
Which device makes telecommunications possible?
Dmitrij [34]
A. modem or d. voice input. Not a port because a port allows one to insert a peripheral device but not really communicate. I have no idea what an expansion slot is. It could be d. voice input because this allows a person to hold an audible conversation.

But  I'd go for modem because a modem lets you connect devices like laptops, tablets, phones, computers etc. and share data between them. So things like mailing are possible (I THINK)!  <span />
7 0
3 years ago
A product/process is referred to as a key Technology during which of the
Rufina [12.5K]

The correct answer is D. Mature Phase

Explanation:

Most products go through four different phases, this includes the emerging phase, the growing phase, the mature phase, and the decline phase. In each of these phases, the product has a different impact on the general market.

In the case of the mature phase, this occurs once the product is established in the market, which means the product is known by many people and is considered as key or necessary. For example, nowadays smartphones are in the mature phase because these are an important part of the market or are key. Moreover, this phase occurs after the product grows in the market, and before it declines. Thus, a product is a key technology during the mature phase.

5 0
2 years ago
7.
shusha [124]

Answer:

The answer is "4".

Explanation:

In this code, on line number 4, it will give the error message, and its correct solution can be defined as follows:

In this code, a variable "score" is declared, that holds a value that is 0, and in the next step, a method "onEvent" is declared that uses a method, and in the if block, it checks the "score" value that is less than 5 and it will print the message.

8 0
3 years ago
100 points !!! Some games fall under more than one category. For example, many racing games allow players to modify the cars the
Ugo [173]

Answer:

game 1: roblox, its not technically a game, however it contains game that could fall under more than one category. Game 2: Dungeons and Dragons could fall under role play and also adventure

Explanation:

7 0
3 years ago
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