Quan ly thoi gian su dung may tinh voi Computertime

Voi kha nang chay ngay khi Windows vua khoi dong xong, ComputerTime ngan chan quyen dung may tinh cua cac tai khoan dang nhap Windows (khong xet tai khoan Guest) bang nhung tai khoan su dung rieng cua chinh ComputerTime (goi tat la tai khoan CT)! ComputerTime v1.0 co gia 39,95$, dung luong 3,2MB, tuong thich Windows 98/Me/2000/XP, tai ban dung thu 14 ngay tai http://www.softwaretime.com/downloads/CTSetup.exe .

Sau khi cai dat ComputerTime (CT), truoc het ban phai tao Admin Password de su dung voi tu cach nha quan tri, ban phai het suc can than vi chi duoc go mot lan, khong co buoc xac nhan. neu go nham hoac quen Admin password, ban se gap rac roi to vi Admin Password cho phep su dung may tinh khong gioi han thoi gian, thay doi cac thiet lap va go bo CT. Sau khi chay CT, ban se duoc vao bang dieu khien ComputerTime Admin Tool, bam New de tao mot tai khoan CT, go ten dang nhap vao o Name, tao va xac nhan password, bam nut Limits de thiet lap thoi gian su dung cua tai khoan.

Thao tac trong hop thoai Limits: chu yeu la quan tam den 3 the General, Daily va Time of Day la du co so de quan ly tot.

The General: cho phep hoac cam quyen dang nhap may tinh theo tai khoan su dung cua CT (goi

- Allow this person to log on and use the computer within the limits set: cho phep dang nhap va su dung may tinh theo cac thiet lap cua Admin (nguoi quan ly CT)
- Disable logon and computer use for this person: khong cho tai khoan nay dang nhap va su dung may tinh.

The Daily: Thiet lap thoi gian su dung may tinh cho ngay, chiu anh huong tu thiet lap cua Weekly/Monthly/Session cua nguoi quan tri

- Unlimited amount of time per day: khong gioi han thoi gian su dung may tinh cua tai khoan, thuong ap dung cho nhung nguoi khong can gioi han thoi gian hoac khi nguoi quan tri khong muon thuong xuyen su dung Admin Password.
- Same amount of time each day: thoi gian duoc thiet lap chung cho viec su dung may moi ngay.
- Different amount of time for weekdays and weekends: thiet lap thoi gian su dung cho
ngay thuong (weekdays) va ngay nghi cuoi tuan (wwekends).
- Amount of time by day of week: thiet lap chi tiet cho tung ngay trong tuan.

The Time of Day: quy dinh khoang thoi gian su dung may trong ngay, nhung bi CT gioi han tu 6 gio sang den 10 gio dem (nen ap dung cho nhung em hoc sinh con dang di hoc de dam bao suc khoe).

Sau khi tao xong mot tai khoan su dung CT, neu co nhu cau tao cac tai khoan co thiet lap tuong tu thi ban chi viec nhap chuot phai vao ten cua tai khoan goc chon Duplicate, sau do nhap chuot phai vao tai khoan vua "tai ban" chon Edit de sua ten tai khoan va password, rat nhanh chong va tien loi. Nha quan tri CT co quyen thay doi ten dang nhap va password cua bat ky tai khoan CT nao.

Trong tai khoan su dung ComputerTime thi nguoi dung duoc mot so quyen:

- Remaining Time: Xem thoi gian con duoc su dung trong ngay.
- Log off: thay doi tai khoan su dung CT.
- Away: tam dung CT (khi khong muon dung Log off vi so "mat cho").
- Add Time Token: gia tang thoi gian su dung do duoc nha quan tri cung cap them.
- Change password: duoc phep thay doi password cua tai khoan dang su dung.

Phan cuoi cung ma toi trinh bay trong bai viet nay la phan "nhay cam" nhat cua CT: them gio su dung (cac Token). Tu bang dieu khien ComputerTime Admin Tool, ban bam bieu tuong Tokens hay chon File/New Time Token, hop thoai New Time Token hien ra:

- Number of tokens to create: chon so luong Token muon tao.
- Amount of time for each token: chon so gio cong them.

Bam Create Tokens, se hien ra bang thong bao Label cua Token, thuong la 4 so, co the go ten vao phan Custom Label de de nho. Nha quan tri se cung cap Label de nguoi dung co the tang them thoi gian su dung.

Chu y:

- Moi Token chi su dung duoc 1 lan.
- Moi lan chi nen tao 1-2 Token do khong quan ly duoc so luong Token.
- Khong nen su dung Custom Label vi rat de bi "bat bai".
- Chi tao khi co yeu cau su dung hoac danh lam phan thuong, dua ngay Token cho nguoi dung sau khi tao.
- Nha san xuat canh bao Ad-aware xem CT nhu "gian diep".

Hoang Kim Hoan