The acronym RFID (Radio Frequency Identification) describes
networked devices that contain microcomputers but are not thought of as
computing devices, such as refrigerators, automobile components, light
bulbs, and industrial control devices. RFIDs are battery-powered sensors that gather and transmit data to a reading device. Some sensor based technologies are scanning electron microscopes, LiDAR,radar, GPS, x-ray, sonar, infrared and seismic.
The answer is C. double-click
Answer:
Hubs incorporate amplifiers and repeaters.
Explanation:
Hub is an outdated way of connecting ethernet devices, they incorporate amplifiers and repeaters, they do not allow simultaneous communication among connected devices.
The latest technology in connecting ethernet devices are with the use of switch.
Answer:
See explaination for the program code
Explanation:
The code below
Pseudo-code:
//each item ai is used at most once
isSubsetSum(A[],n,t)//takes array of items of size n, and sum t
{
boolean subset[n+1][t+1];//creating a boolean mtraix
for i=1 to n+1
subset[i][1] = true; //initially setting all first column values as true
for i = 2 to t+1
subset[1][i] = false; //initialy setting all first row values as false
for i=2 to n
{
for j=2 to t
{
if(j<A[i-1])
subset[i][j] = subset[i-1][j];
if (j >= A[i-1])
subset[i][j] = subset[i-1][j] ||
subset[i - 1][j-set[i-1]];
}
}
//returns true if there is a subset with given sum t
//other wise returns false
return subset[n][t];
}
Recurrence relation:
T(n) =T(n-1)+ t//here t is runtime of inner loop, and innner loop will run n times
T(1)=1
solving recurrence:
T(n)=T(n-1)+t
T(n)=T(n-2)+t+t
T(n)=T(n-2)+2t
T(n)=T(n-3)+3t
,,
,
T(n)=T(n-n-1)+(n-1)t
T(n)=T(1)+(n-1)t
T(n)=1+(n-1)t = O(nt)
//so complexity is :O(nt)//where n is number of element, t is given sum
Answer:
Embedded Operating System.
Explanation:
Embedded OS (also called Real Time Operating System) is designed to perform a single purpose in devices that may or may not be computers that have very little computer power and little RAM size such as washing machines, ATM, media player, automobiles, and cameras. Examples of such embedded operating system are iOS(used in Apple's mobile devices), Symbian, Palm OS and Window OS.
Since they are used in single-purpose computers, they handle and perform their tasks with so much efficiency.
<em>Hope this helps!</em>
