Presentation on theme: "Computer Basics A computer is an electronic machine that takes information, processes it,and stores it. Computers are made up of hardware ( monitor,"— Presentation transcript:
Computer Basics A computer is an electronic machine that takes information, processes it,and stores it. Computers are made up of hardware ( monitor, tower, keyboard, mouse, printer) and software (programs that tell the computer what to do, Ex. Microsoft Excel, Word, etc.)
INPUT Input Devices allow us to send information to the CPU (TOWER) to tell the Computer what to do. Some TYPES of Input: 1. Keyboard 2. Mouse 3. Disk with data (a game) 4. Scanner
OUTPUT Output devices receive information from the CPU (TOWER), then make it into sounds or pictures that we can understand. Types of OUTPUT: 1. Speaker 2. Monitor 3. Printer 4. A disk to store data
Peripherals AAny Hardware not inside the computer case. PPeripherals connect to the TOWER EXAMPLES: WWeb cam SSpeakers KKeyboard MMouse HHeadphones PPrinter
Types of Computers Types of Computers
Supercomputer Fastest and most expensive computers in the World Used by NASA, the military and large universities
PDA Developed as an electronic organizer. Now available with mini versions of the Office software, e.g. Microsoft Word. Can synchronize with a desktop PC and even surf the web.
Laptop Were traditionally more expensive when compared to a similar desktop PC. However, with the growing demand for laptops and cheaper production methods, they are now a similar price.
Personal Computer A computer designed for general use by a single person. Takes up a lot of space
Mainframe They are slower than a supercomputer but far less expensive. Mainframes can perform billions of tasks per second and can process large amounts of data at once. They are usually connected to a large number of peripherals e.g. printers, disk drives etc.
Inside the TOWER Power Supply/FAN ROM –Hard Disk MotherBoard RAM CPU BIOS EXPANSION SLOTS: Sound Card Graphics Card Network Interface Card or Modem
CPU or Microprocessor A tiny powerful silicon chip that contains the entire central processing unit of the computer. (Computers for Kids) Pentium is one type, produced by INTEL INTEL produced the first chip in 1971
Motherboard Motherboard is found at the bottom of a desktop case (side of a tower). The largest circuit board that holds expansion cards like the sound card and video card. Passes data between components and peripherals mp- les2.html&h=320&w=440&sz=9&tbnid=4P9HWPui23yGeM:&tbnh=92&tbnw=127&prev=/images %3Fq%3Dimages%2Bof%2BINSIDE%2BOF%2BCOMPUTER%2BKABOOSE&zoom=1&q=imag es+of+INSIDE+OF+COMPUTER+KABOOSE&usg=__JL0aNvF- 6G_BiSezYMPDI2Te3nY=&sa=X&ei=_siSTLShK8WHnQem7YSsBw&ved=0CB4Q9QEwAA
RAM and ROM RAM – Random Access Memory Can write to RAM but it erases everything when computer is turned OFF ---- WHY WE SAVE!!!! ROM – Read Only Memory Remembers even when computer is turned off but can’t be written to.
BIOS Basic Input and Output System When computer is off and turned back on lets the computer know what Peripherals are attached. Why you must turn off machine if mouse is not connected for it to work.