Which of the following signal controls the flow of data ?
RTS and DTR
RTS and DTR option is correct.
The RS-232 (EIA-232) interface, on which most textbook UART/8051 serial-communication discussions are based, defines two families of handshake signals that together regulate data flow between a DTE and a DCE. RTS (Request-To-Send) paired with CTS (Clear-To-Send) performs hardware flow control: the transmitter raises RTS to ask permission, and the receiver raises CTS when its buffer has room. DTR (Data-Terminal-Ready) paired with DSR (Data-Set-Ready) advertises device readiness and is also used by modem software (and Mazidi’s 8051 text) as part of the flow-control handshake — both must be asserted before data is allowed to pass.
Because the question asks which signal(s) “control the flow of data”, and both RTS and DTR participate in that flow-control handshake, the combined option is the accurate answer. Choosing only RTS or only DTR omits half of the handshake, and ECNR is not a defined RS-232 line.
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.................... is a client server application that identifies each host on the internet with a unique user-friendly name.
Every OS has a ................ or .......... which primarily resides in the main memory of the computer to perform some of the basic functions of the OS.
(i) Kernel
(ii) Interface
(iii) Nucleus
(iv) Compiler
Codes:
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(i) Machine language
(ii) Assembly language
(iii) High level language
(iv) Natural language
Codes:
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List I List II (a) New York Public Library (i) Shelv AR (b) Miami University Augmented Research Group (ii) Smart library (c) Oula University Library (iii) Wolf Walk (d) North Carolina State University (iv) Find the future Codes:
Which part of the QR code represents the encoded data?
