Computer Studies/ ICT

CENTRAL PROCESSING UNIT The Central Processing Unit is an important part of the internal feature of system unit. It is also known as computer chip or microprocessor. FUNCTIONS OF CPU 1.       To perform mathematical calculations on binary numbers. 2.       It consumed less power with better performance. 3.       It provides viable connectivity to develop more advanced and parallel systems. 4.       It can be redesigned and converted to a small size, in order to increase the processing speed of the system. 5.       It provides very good compatibility with VLSI.  MAIN DESIGN OF CPU CPU is a complex designed unit which comprises many hardware components like motherboard and circuit and works by receiving set of instructions (known as program). The early designed CPU allowed only numeral and decimal system to represent numbers while the modern CPU allows representation of numbers in binary form. The working and design of the CPU’s is based on the synchronization of the

WHAT IS COMPUTER? Computer is an electronic device that accepts data inform of text, number picture and sound through input devices, processes the data through processing device and produces result also known as information in a specified format through the help of installed program at a very fast speed. PARTS OF COMPUTER Parts of computer are mainly divided into two: (A)   Hardwares: These are parts of computer that we can see, touch and carried about. Examples are: (i)       PC case (ii)     Hard Disk Drive (HDD) (iii)   Motherboard or System board or Main board (iv)   Mouse (v)     Keyboard (vi)   Monitor (vii)   Speaker  (viii) Floppy Disk Drive (FDD) (ix) Compact Disk Drive (CDD) (x) Cables and wire etc.              (B) Softwares: These are programs that enables computer to perform a specific task.       Examples are: (i)       Internet browser (ii)     Ms – Word (iii)   Ms – Excel (iv)   Corel Draw (v)     Page maker (vi)   Video Edit