Readability of machine language instructions is
much better than the assembly language instructions

Machine language instructions are a sequence of 1s and 0s

C7060C002D00
is an example of a code written in

Assemblers translate between High-level and
machine languages

example of Assembler

Compiler translates from a high-level language to
machine language

Compiler translates from a high-level language to
machine language directly via assembly language

Most high-level language instructions need less
than one assembly instruction

Fewer instructions to code

Can be used with little or no modifications on different
types of machines

Assembly language programs are portable

Program maintenance is easier

Assembly code tends to be compact

Assembly language programs tend to run faster

Only a well-written assembly language program runs faster
– Easy to write an assembly program that runs slower than
its high-level language equivalent

we program in assembly language because of
Space-efficiency and Time-efficiency

.... specifies an operation and the
locations of its data operands

A ...-bit word typically holds one encoded
instruction

A sequence of instructions, executed one after
another, constitutes a program

Both a program and its data are stored in the main
memory