The peripherals of the computer(like keyboard, monitor) are
connected through buses directly or is there any interfacing
device present in the CPU?

Answer Posted / kowsar shaik

yes. there is a i/o port as interface b/w i/o devises & cpu.
i/o port consists of latches&buffer to store information
temperarly. for 8 bit microprocessor yhe i/p is latched and
o/p is buffered and at tri state when it is not used.

Is This Answer Correct ?    4 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Why can’t we use comparator to convert sin wave into square wave?

705


Explain why bjt is called current control device?

531


can u send me ttq upto 2008 on my email id pooja_bora18@yahoo.com.sorry for the trouble.

1520


What is meant by D-FF? What is the basic difference between Latches and Flip flops? What is a multiplexer? How can you convert an SR Flip-flop to a JK Flip-flop? How can you convert an JK Flip-flop to a D Flip-flop? What is Race-around problem? How can you rectify it? Which semiconductor device is used as a voltage regulator and why? What do you mean by an ideal voltage source? What do you mean by zener breakdown and avalanche breakdown? What are the different types of filters? What is the need of filtering ideal response of filters and actual response of filters? What is sampling theorem? What is impulse response? Explain the advantages and disadvantages of FIR filters compared to IIR counterparts. What is CMRR? Explain briefly. What do you mean by half-duplex and full-duplex communication? Explain briefly. Which range of signals are used for terrestrial transmission? What is the need for modulation? Which type of modulation is used in TV transmission? Why we use vestigial side band (VSB-C3F) transmission for picture? When transmitting digital signals is it necessary to transmit some harmonics in addition to fundamental frequency? For asynchronous transmission, is it necessary to supply some synchronizing pulses additionally or to supply or to supply start and stop bit? BPFSK is more efficient than BFSK in presence of noise. Why? What is meant by pre-emphasis and de-emphasis? What do you mean by 3 dB cutoff frequency? Why is it 3 dB, not 1 dB?

1571


How video signals are produced?

1441






why interrupt is necessary in microprocessor?

2363


What is power electronics?

581


Can u please post some questions of MTNL junior telecom officer exam?

3165


The magnitude of electrostatic force between two identical positive ions that are separated by a distance of 5.0 x 10– 10 m is 3.7 x 10–9 N. (a) What is the charge of each ion? (b) How many electrons are “missing” from each ion?

1663


Explain why the input impedance of op-amp is so high?

653


Differentiate between static and dynamic resistance of a diode.

1087


i have a problem in programming using string program is- rajasthan rajasthan rajastha ajasthan rajasth jasthan rajast asthan rajas sthan raja than raj han ra an r n plz reply soon as posible as

1512


What is the advantage of scr?

632


what is the present model of group1 and group 2 syllabus plz send the link ?

1319


What do you mean by traffic profile?

2582