Assembly Language The instructions like MOV or ADD are called as opcode. The assembler directives help the program in getting compiled and hence wont be there in the object code. The assembler directive EQU, when used in the instruction : Sum EQU 200 does, Replaces every occurrence of Sum with 200 purpose of the ORIGIN …
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Classification of computer Computers are classified into five, they are microcomputer, minicomputer, workstation, mainframe computer and supercomputer Microcomputer – personal computer (eg : laptop), device used to scan code of products in supermarket Minicomputer is a small general purpose computers, have the capability to serve a number of users simultaneously Workstation is a single user …
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DOS (disk operating system) DOS uses a command-line interface with personal computer .MS-DOS mode is a shell in which MS-DOS environment is emulated in a 32-bit system like windows. MS-DOS programs can run with windows, and create PIF (program interface file) which contains all settings. MS-DOS is written by Tim Paterson and introduced by Microsoft. …
Note this points which are regularly asked in all competitive exams : Accoustic channel is used for person to person voice communications. At high frequency transit time noise is important. HF mixer is noiser than HF amplifier. Strongest noise interface occurs at 20 to 120 MHZ. Leak-type bias is used in a plate modulated class …
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