Answer:
1. Supercomputers
Supercomputers are very expensive and very fast. They are the most powerful computers we have in the world.
Supercomputers are optimized to execute only a small number of programs. This makes it possible for them to execute these few programs at a very high speed. Due to their inhibiting cost, they are used in high-end places like in scientific research centers. The supercomputer consists of thousands of processors, allowing it to clock in at very high speeds measured by petaflops.
These computer types are also very large in size due to the numerous parts and components involved in their design.
A good example of a supercomputer is Tianhe-2, which is located in the National Supercomputer Center in Guangzhou, China. It features 3.12 million cores, allowing it to run at speeds of 33.86 petaflops.
2. Mainframe Computers
These are large and expensive computers that are capable of supporting thousands of users simultaneously. They are mostly used by governments and large organizations for bulk data processing, critical applications, and transaction processing. They are ranked below supercomputers.
3. Minicomputers
Minicomputers are mid-sized computers. In terms of size and power, they are ranked below mainframes. A minicomputer is a multiprocessing system capable of supporting from 4 to about 200 users simultaneously.
The use of the term minicomputer has diminished since the introduction of microprocessors. These machines are now more commonly called midrange computers.
4. Microcomputers
A microcomputer, also known as a personal computer, is designed to be used by one user at a time. The term microcomputer relates to the microprocessor that is used for the purpose of processing data and instruction codes. These are the most common computer types since they are not very expensive
The answer is B because it is short and simple and gets you to the point
Answer:
See explaination
Explanation:
import os
import time
from stat import *
file = input("Enter file name: ")
details = os.stat(file)#stores statistics about a file in a directory
print("File size: ", details[ST_SIZE])#retreiving size
print("File last accessed time: ", time.asctime(time.localtime(details[ST_ATIME])))#access time
print("File last modified time: ", time.asctime(time.localtime(details[ST_MTIME])))#modified time
print("File creation time: ", time.asctime(time.localtime(details[ST_CTIME])))#creation time
print("First character: ", file[0])
print("Middle character: ", file[len(file) // 2])
print("Last character: ", file[len(file) - 1])
num_words = 0
num_lines = 0
f=open(file, "r")
lines = f.readlines()
for line in lines:
num_lines = num_lines + 1
num_words = num_words + len(line.split())#add no. of words in that line
print("Number of lines: ", num_lines)
print("Number of words: ", num_words)
Answer:
highly venerable to external attacks
Explanation:
Embedded systems are the type of computer systems that are specially designed having hardware and software components plus programmable capabilities embedded into the hardware itself.
These computer systems are motorized by dedicated computer hardware chips made by companies such as Broadcom, Qualcomm, and Marvell. These chips are cheap which also means that they’re highly vulnerable, and the profit margins slim. They normally put a version of the Linux operating system onto the chips, lumping it up with some other bunch of open-source and proprietary components and drivers. With little or no technical engineering work before shipping, and there's little enticement to update their "board support package" until there’s probably a very good reason for it.
Answer:
It can improve the quality of human life because it can be used as a learning and education media, the mass communication media in promoting and campaigning practical and important issues, such as the health and social area. It provides wider knowledge and can help in gaining and accessing information.
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