Introduction to Computer Hardware and Software 204 هـــعـــم.

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Presentation transcript:

Introduction to Computer Hardware and Software 204 هـــعـــم

مكونات الحاسب Hardware Input and Output devices Software

Hardware System Unit: Motherboard, CPU ( Central Proceesing Unit ), Memory Hard disk Floppy disk drive CD drive/DVD drive Power supply unit

Input and Output Devices Input Devices  Keyboard  Mouse  Others (scanner, microphone, joystick … etc) Output Devices  Monitor  Printer  Projector

Compuer Storage Space RAM (Random Access Memory) Computer’s temporary (volatile) storage space up to 1 to 2 GB. Access time in nanoseconds Hard Disk nonvolatile primary storage of computer up to 300GB. Access time in milliseconds Other storage media Nonvolatile: Floppy (1.44MB), CD (700MB), DVD (4.7GB, 8.5GB), Flash memory

كيف يتعامل الحاسب مع المعلومات؟ الحاسب هو جهاز رقمي يستخدم الحاسب الأرقام الثنائية(Binary) في كل تعاملاته  الأرقام الثنائية هي أرقام مكونة من أصفار وواحدات مثال: كل خانة ثنائية تسمى Bit كل 8 خانات ثنائية تسمىByte تمثل الحروف الأبجدية باستخدام ASCII مثال: = A

Wireless Data Transfer

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