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2 years ago

Tick the best alternatives 1. Which one of the following is input device? a) Speaker b) Printer c. Monitor d. Mouse

Computers and Technology

2 answers:

Alex787 [66]2 years ago

8 0

Answer:

D. Mouse

Explanation:

An input device is a device that help input data or commands. A mouse here helps to issue commands to the computer

Sav [38]2 years ago

5 0

Answer:

d. Mouse

Explanation:

A mouse is used to move a the cursor around the screen. You use the mouse to open applications or drag and drop files. It gives the computer instructions (input) . Therefore it is an input device.

<h2>Output devices :</h2>

A speaker is an output device because it outputs sounds.
A printer is an output device which is used to output information(print) on paper.
A monitor is used to display.

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Quick time and flash are two examples of what product

zheka24 [161]

there apps .........

8 0

3 years ago

Given the following snippet of code, answer the following two questions based on the code: typedef enum {Sun, Mon, Tue, Wed, Thu

ANEK [815]

Answer:

1) The value of x will be 6.

2) The value of y will be 7.

Explanation:

1) The value of x will be 6.

The enum values are labeled by default from 1. This means that Sun = 1, Mon = 2, Tue = 3 and so on.

So, x = Mon = 2 and y = Sat = 6

x increases up to y = 6 in the while loop.

and then y also increments by 1.

2)So the value of y = 7.

You will need actual printf("Sun") or printf("Mon") for printing the actual text for the enum.

7 0

3 years ago

WRITE A PROGRAM TO CALCULATE SIMPLE INTEREST

Alchen [17]

The simple interset program is a sequential program, and does not require loops and conditions

The simple interset program in Python, where comments are used to explain each line is as follows:

#This gets input for the principal amount

P = int(input("P = "))

#This gets input for the rate

R = int(input("R = "))

#This gets input for the number of years

N = int(input("N = "))

#This calculates the simple interest

I = P * R * T * 0.01

#This prints the simple interest

print("Simple Interest =",I)

Read more about simple interest at:

brainly.com/question/2294792

7 0

2 years ago

Fifty-three percent of U.S households have a personal computer. In a random sample of 250 households, what is the probability th

aleksley [76]

Answer:

The correct Answer is 0.0571

Explanation:

53% of U.S. households have a PCs.

So, P(Having personal computer) = p = 0.53

Sample size(n) = 250

np(1-p) = 250 * 0.53 * (1 - 0.53) = 62.275 > 10

So, we can just estimate binomial distribution to normal distribution

Mean of proportion(p) = 0.53

Standard error of proportion(SE) = $\sqrt{\frac{p(1-p)}{n} }$ = $\sqrt{\frac{0.53(1-0.53)}{250} }$ = 0.0316

For x = 120, sample proportion(p) = $\frac{x}{n}$ = $\frac{120}{250}$ = 0.48

So, likelihood that fewer than 120 have a PC

= P(x < 120)

= P( p^ < 0.48 )

= P(z < $\frac{0.48-0.53}{0.0316}$ ) (z= $\frac{p^-p}{SE}$ )

= P(z < -1.58)

= 0.0571 ( From normal table )

6 0

3 years ago

Write a procedure named Str_find that searches for the first matching occurrence of a source string inside a target string and r

kirill115 [55]

Answer: Provided in the explanation section

Explanation:

Str_find PROTO, pTarget:PTR BYTE, pSource:PTR BYTE

.data

target BYTE "01ABAAAAAABABCC45ABC9012",0

source BYTE "AAABA",0

str1 BYTE "Source string found at position ",0

str2 BYTE " in Target string (counting from zero).",0Ah,0Ah,0Dh,0

str3 BYTE "Unable to find Source string in Target string.",0Ah,0Ah,0Dh,0

stop DWORD ?

lenTarget DWORD ?

lenSource DWORD ?

position DWORD ?

.code

main PROC

INVOKE Str_find,ADDR target, ADDR source

mov position,eax

jz wasfound ; ZF=1 indicates string found

mov edx,OFFSET str3 ; string not found

call WriteString

jmp quit

wasfound: ; display message

mov edx,OFFSET str1

call WriteString

mov eax,position ; write position value

call WriteDec

mov edx,OFFSET str2

call WriteString

quit:

exit

main ENDP

;--------------------------------------------------------

Str_find PROC, pTarget:PTR BYTE, ;PTR to Target string

pSource:PTR BYTE ;PTR to Source string

;

; Searches for the first matching occurrence of a source

; string inside a target string.

; Receives: pointer to the source string and a pointer

; to the target string.

; Returns: If a match is found, ZF=1 and EAX points to

; the offset of the match in the target string.

; IF ZF=0, no match was found.

;--------------------------------------------------------

INVOKE Str_length,pTarget ; get length of target

mov lenTarget,eax

INVOKE Str_length,pSource ; get length of source

mov lenSource,eax

mov edi,OFFSET target ; point to target

mov esi,OFFSET source ; point to source

; Compute place in target to stop search

mov eax,edi ; stop = (offset target)

add eax,lenTarget ; + (length of target)

sub eax,lenSource ; - (length of source)

inc eax ; + 1

mov stop,eax ; save the stopping position

; Compare source string to current target

cld

mov ecx,lenSource ; length of source string

L1:

pushad

repe cmpsb ; compare all bytes

popad

je found ; if found, exit now

inc edi ; move to next target position

cmp edi,stop ; has EDI reached stop position?

jae notfound ; yes: exit

jmp L1 ; not: continue loop

notfound: ; string not found

or eax,1 ; ZF=0 indicates failure

jmp done

found: ; string found

mov eax,edi ; compute position in target of find

sub eax,pTarget

cmp eax,eax ; ZF=1 indicates success

done:

ret

Str_find ENDP

END main

cheers i hoped this helped !!

6 0

3 years ago

Tick the best alternatives 1. Which one of the following is input device? a) Speaker b) Printer c. Monitor d. Mouse​

Tick the best alternatives 1. Which one of the following is input device? a) Speaker b) Printer c. Monitor d. Mouse