What is Computer ?
Scientific Meaning : Computer is logical, arithmetical, digital, electronic, electrical and mechanical device. by which we can calculate,Edit,delete, store,direct different types of data, machine etc.
According to method of signal Computer is three types--> 1. Analog---> Computer use analog signal (sin curve like signal ). 2. Digital ----> Use 0,1 or ON, OFF signal 3. Hybrid---> uses both analog and digital signal.
According to use computer are four types---> 1. Personal computer 2. Mini computer 3.Super computer and 4. Mainframe Computer.
Todays life we use Personal Computer in our home,office in a small business, School,college, university. and it is digital computer.
Today Computer become an essential part of our daily work or daily life.
Computer have mainly four outer part, namely i) CPU (Mainly we can see cabinet from out side but most of us called it CPU. CPU means Central Processing Unit or Processor. Briefly discus it later ). ii) Mouse iii) Keyboard and iv) Monitor.
above the all there would be UPS, Speaker, Printer, Scanner, joystick etc.
According to method of signal Computer is three types--> 1. Analog---> Computer use analog signal (sin curve like signal ). 2. Digital ----> Use 0,1 or ON, OFF signal 3. Hybrid---> uses both analog and digital signal.
Todays life we use Personal Computer in our home,office in a small business, School,college, university. and it is digital computer.
Computer have mainly four outer part, namely i) CPU (Mainly we can see cabinet from out side but most of us called it CPU. CPU means Central Processing Unit or Processor. Briefly discus it later ). ii) Mouse iii) Keyboard and iv) Monitor.
above the all there would be UPS, Speaker, Printer, Scanner, joystick etc.
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