All a computer needs is power, hundreds of system software programs automatically configure
the computer and find and enable the operating sysytem
Os is considered “system software” whereas a program like excel or adobe photoshop are
considered “application software”
Everything a computer does is a “process”
Virtual memory actually isn't memory
processes/multitasking
- The ability to run more than one process at a time
Memory management/storage
- Cpu cache
- Random access memory (RAM)
- Registers
- Virtual memory: what keeps loading up the primary RAM
- Disk storage
Memory management/storage
- Operating system coordinate and arrange the computer's memory which includes cache,
ram, registers, and virtual memory. Platform also facilitate disk storage
- CPU cache: small, very quick memory that stores copies on information that is most
regularly
- Virtual memory: the ELF, used to coordinate, track, and allocate CPU cache, RAM and
disk storage.
- Disk storage: non-volatile like an internal hard drive.
Defragmentation will reorganize files in hard drive
Hard drive does not go faster after defragmentation but will make it more efficient
FAT (File allocation (GET INFO)
Understanding operating systems
- Configures the computer
- Collection of computer programs
- Administers input and output
- Controls and allocates memory
- Administers input and output
- Manages the filing system
- It is a binary device
- Because It is an electrical device, it is either on or off
- Keyboard translates 1s and 0s into letters, and something readable by humans
- Always called a “platform”
Device drivers
- Programs that allow peripheral devices (e.g.: printer)
Open source operating systems:
- Microsoft windows, propriety
- Mac os, propriety
- Unix, propriety
- Linux, non-propriety
KNOWLEDGE CHECK 4:
1. What function stores and organizes a users work in computer files? File manager
2. What does ms dos stand for? Microsoft disk operating system
3. Who sold ibm ms dos? Gates and allen
4. Whats the worlds largest network? Internet
5. Which memory quickens the implementation of comp programs? Registers
6. Who developed the earliest mac os? Jobs and wozniak
7. Memory helps decrease time to get access memory? Cpu cache
8. What kind of operating system use the iphone? Embedded
9. Who can modify linux? Anyone
10. Common name for hierarchy of directories? Folder
11. Move data from one computer to another? Pcpip
12. Computer runs more than one thing at time? Multitaking
13. Embedded system be modified? No
14. Table contents to hard drive? FAT
15. Open source? Linux
16. Free of cost? Linus
17. Computer performs a task? A process
18. Tracks and allocated memory? Virtual
19. Dominating operating system? Windows
20. Who started linix? Lioniess
21. Not memory os? Borland
22. Program unclutters a hard drive? Defragmentation
23. tcp/ip breaks files into what? Packets
24. Is an os system software or application software? system
